{"title":"1100gsm EPDM Liners","description":"\u003cp\u003eFlexible black EPDM rubber pond liners, 1100gsm and 0.9mm thick. Choose from eleven flat sheet sizes, from 1m × 1m to 10m × 10m, for your garden pond or water feature.\u003c\/p\u003e","products":[{"product_id":"1m-x-1m-epdm-rubber-pond-liner-1100-gsm","title":"1m x 1m EPDM Rubber Pond Liner, 1100 GSM","description":"\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__hero\"\u003e\n    \u003cdiv class=\"eot-aplus__hero-copy\"\u003e\n      \u003ch3\u003eA small sheet for a carefully measured project\u003c\/h3\u003e\n      \u003cp\u003eA compact black EPDM rubber sheet for small water features and lining projects. Check the space needed for depth and edging before choosing this size.\u003c\/p\u003e\n      \u003cul class=\"eot-aplus__hero-specs\"\u003e\n\u003cli\u003e1m × 1m sheet\u003c\/li\u003e\n\u003cli\u003e1100gsm EPDM rubber\u003c\/li\u003e\n\u003cli\u003e0.9mm thickness\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003cp\u003eOne liner supplied. Underlay and installation accessories sold separately.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-pond-liner-1x1-labelled.jpg?v=1792521380\u0026amp;width=1200\" alt=\"1m x 1m black EPDM pond liner with its size label\" width=\"4000\" height=\"4000\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-pond-liner-1x1-labelled.jpg?v=1792521380\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-pond-liner-1x1-labelled.jpg?v=1792521380\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-pond-liner-1x1-labelled.jpg?v=1792521380\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-pond-liner-1x1-labelled.jpg?v=1792521380\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-pond-liner-1x1-labelled.jpg?v=1792521380\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\u003cfigcaption\u003eOne compact 1m × 1m sheet. The label shows the flat sheet dimensions.\u003c\/figcaption\u003e\u003c\/figure\u003e\n  \u003c\/section\u003e\n  \u003cdiv class=\"eot-aplus__facts\" aria-label=\"Key liner specifications\"\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e1m × 1m\u003c\/strong\u003e\u003cspan\u003eFlat sheet size\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e1m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e1100gsm\u003c\/strong\u003e\u003cspan\u003eMaterial weight\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e0.9mm\u003c\/strong\u003e\u003cspan\u003e900-micron thickness\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003csection class=\"eot-aplus__material\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200\" alt=\"Folded black EPDM rubber liner showing the flexible material\" width=\"1200\" height=\"1200\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003eRubber that works with your pond's contours\u003c\/h3\u003e\n      \u003cp\u003eEPDM is a flexible synthetic rubber. It can follow rounded edges, slopes and planting shelves, giving you more freedom over the shape of your pond.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMade for outdoor pond use.\u003c\/strong\u003e UV and ozone resistant for outdoor pond use.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eA clear material specification.\u003c\/strong\u003e 1100gsm material weight and a thickness of 900 microns (0.9mm).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eJoined-sheet construction.\u003c\/strong\u003e This liner is made from securely joined sheets and contains seams. It is not a seamless cut.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__dimensions\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003eA compact sheet. Measure every edge.\u003c\/h3\u003e\n      \u003cp\u003eAt just 1m × 1m, the flat sheet is best considered against the exact contours of your project. Even a shallow feature needs extra liner for its sides and the overlap around the edge. The flat sheet area is \u003cstrong\u003enot the finished pond footprint\u003c\/strong\u003e.\u003c\/p\u003e\n      \u003cp\u003eAllow for the deepest part of your pond and an overlap around every edge. Use the sizing calculator below before choosing your liner.\u003c\/p\u003e\n      \u003cp\u003eFor irregular ponds, shelves or waterfalls, measure along the actual contours as well. \u003ca href=\"#EotPondSizing\"\u003eUse the calculator below to find your liner size.\u003c\/a\u003e\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"eot-aplus__diagram\" role=\"img\" aria-label=\"Rectangular flat liner sheet, 1 metres long and 1 metres wide. Thickness 0.9 millimetres. Not to scale.\"\u003e\n      \u003cspan class=\"eot-aplus__length\"\u003e1m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__sheet\" style=\"aspect-ratio:1\/1;min-height:9rem\"\u003e\n\u003cstrong\u003e1m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cspan class=\"eot-aplus__width\"\u003e1m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__thickness\"\u003e\n\u003cspan\u003e\u003c\/span\u003e0.9mm thick · not to scale\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n\u003c!-- eot:pond-sizing --\u003e\n\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__preparation\"\u003e\n    \u003cdiv class=\"eot-aplus__section-heading\"\u003e\n\u003ch3\u003ePrepare the pond. Protect the liner.\u003c\/h3\u003e\n\u003cp\u003eA careful start gives the rubber a smooth, supported surface to follow.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200\" alt=\"Illustrative preparation scene showing black liner laid over protective underlay\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 1100px, 100vw\"\u003e\u003cfigcaption\u003eIllustrative preparation scene. Protective underlay is sold separately.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003cdiv class=\"eot-aplus__steps\"\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eClear and prepare\u003c\/h4\u003e\n\u003cp\u003eRemove sharp stones, roots and debris. Shape the pond and shelves, then use suitable protective underlay between the ground and liner.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eUnfold gently\u003c\/h4\u003e\n\u003cp\u003eAfter cold transport, leave the liner at room temperature, around 20°C, for a few hours. Separate the folded layers slowly from a corner or edge.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003ePlan the handling\u003c\/h4\u003e\n\u003cp\u003eCheck access to the pond and keep the sheet supported as you position it. Do not pull sharply or use knives to separate layers.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__included\"\u003e\n    \u003ch3\u003eWhat arrives with your order?\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eOne 1m × 1m black EPDM pond liner.\u003c\/strong\u003e Protective underlay, adhesives, seam tape, tools and decorative edging are not included. See the selected accessories above for compatible preparation materials and check their coverage before ordering.\u003c\/p\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__questions\"\u003e\n    \u003ch3\u003eBefore you start\u003c\/h3\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs 1m × 1m the size of the finished pond?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. It is the flat sheet size. Allow for pond depth, shelves and an overlap at every edge. Use the calculator above as a starting estimate and check the actual contours of your design.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs protective underlay included?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. Underlay is sold separately. It helps separate the liner from sharp objects and ground irregularities; it does not replace careful ground preparation.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eDoes this liner contain seams?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eYes. The supplied liner is made from securely joined sheets. Joined-sheet construction is part of this product's specification.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhy might the folded layers stick together?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eFolded layers can stick together after storage under pressure. Allow the liner to reach room temperature and separate them slowly and evenly. Do not use sharp tools or force the layers apart.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhat is the white or matt residue on the rubber?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eManufacturing processing aids can leave a white or matt residue where folded layers touched. This does not affect watertightness, strength or durability. Wipe it away with a soft, damp cloth. Contact us if the liner arrives with tears, punctures, holes or cracks.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n","brand":"Costwise","offers":[{"title":"Default Title","offer_id":55808300089731,"sku":"EPDM900-1X1-001","price":10.69,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-pond-liner-1x1-labelled.jpg?v=1792521380"},{"product_id":"2-5m-x-2-5m-epdm-rubber-pond-liner-1100-gsm","title":"2.5m x 2.5m EPDM Rubber Pond Liner, 1100 GSM","description":"\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__hero\"\u003e\n    \u003cdiv class=\"eot-aplus__hero-copy\"\u003e\n      \u003ch3\u003eA flexible start for a compact garden pond\u003c\/h3\u003e\n      \u003cp\u003eBuild a smaller garden pond around your own curves and planting shelves with a square black EPDM rubber sheet.\u003c\/p\u003e\n      \u003cul class=\"eot-aplus__hero-specs\"\u003e\n\u003cli\u003e2.5m × 2.5m sheet\u003c\/li\u003e\n\u003cli\u003e1100gsm EPDM rubber\u003c\/li\u003e\n\u003cli\u003e0.9mm thickness\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003cp\u003eOne liner supplied. Underlay and installation accessories sold separately.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200\" alt=\"Illustrative garden pond with black flexible liner following curved planting shelves\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\u003cfigcaption\u003eIllustrative installation, not a size guide. Pond, plants, stones and accessories are not included.\u003c\/figcaption\u003e\u003c\/figure\u003e\n  \u003c\/section\u003e\n  \u003cdiv class=\"eot-aplus__facts\" aria-label=\"Key liner specifications\"\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e2.5m × 2.5m\u003c\/strong\u003e\u003cspan\u003eFlat sheet size\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e6.25m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e1100gsm\u003c\/strong\u003e\u003cspan\u003eMaterial weight\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e0.9mm\u003c\/strong\u003e\u003cspan\u003e900-micron thickness\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003csection class=\"eot-aplus__material\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200\" alt=\"Folded black EPDM rubber liner showing the flexible material\" width=\"1200\" height=\"1200\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003eRubber that works with your pond's contours\u003c\/h3\u003e\n      \u003cp\u003eEPDM is a flexible synthetic rubber. It can follow rounded edges, slopes and planting shelves, giving you more freedom over the shape of your pond.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMade for outdoor pond use.\u003c\/strong\u003e UV and ozone resistant for outdoor pond use.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eA clear material specification.\u003c\/strong\u003e 1100gsm material weight and a thickness of 900 microns (0.9mm).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eJoined-sheet construction.\u003c\/strong\u003e This liner is made from securely joined sheets and contains seams. It is not a seamless cut.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__dimensions\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003eA square sheet for a smaller pond.\u003c\/h3\u003e\n      \u003cp\u003eThe 2.5m × 2.5m sheet gives you equal dimensions in both directions. The finished pond must fit within those dimensions after allowing for depth, shelves and edging. The flat sheet area is \u003cstrong\u003enot the finished pond footprint\u003c\/strong\u003e.\u003c\/p\u003e\n      \u003cp\u003eAllow for the deepest part of your pond and an overlap around every edge. Use the sizing calculator below before choosing your liner.\u003c\/p\u003e\n      \u003cp\u003eFor irregular ponds, shelves or waterfalls, measure along the actual contours as well. \u003ca href=\"#EotPondSizing\"\u003eUse the calculator below to find your liner size.\u003c\/a\u003e\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"eot-aplus__diagram\" role=\"img\" aria-label=\"Rectangular flat liner sheet, 2.5 metres long and 2.5 metres wide. Thickness 0.9 millimetres. Not to scale.\"\u003e\n      \u003cspan class=\"eot-aplus__length\"\u003e2.5m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__sheet\" style=\"aspect-ratio:2.5\/2.5;min-height:9rem\"\u003e\n\u003cstrong\u003e6.25m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cspan class=\"eot-aplus__width\"\u003e2.5m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__thickness\"\u003e\n\u003cspan\u003e\u003c\/span\u003e0.9mm thick · not to scale\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n\u003c!-- eot:pond-sizing --\u003e\n\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__preparation\"\u003e\n    \u003cdiv class=\"eot-aplus__section-heading\"\u003e\n\u003ch3\u003ePrepare the pond. Protect the liner.\u003c\/h3\u003e\n\u003cp\u003eA careful start gives the rubber a smooth, supported surface to follow.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200\" alt=\"Illustrative preparation scene showing black liner laid over protective underlay\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 1100px, 100vw\"\u003e\u003cfigcaption\u003eIllustrative preparation scene. Protective underlay is sold separately.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003cdiv class=\"eot-aplus__steps\"\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eClear and prepare\u003c\/h4\u003e\n\u003cp\u003eRemove sharp stones, roots and debris. Shape the pond and shelves, then use suitable protective underlay between the ground and liner.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eUnfold gently\u003c\/h4\u003e\n\u003cp\u003eAfter cold transport, leave the liner at room temperature, around 20°C, for a few hours. Separate the folded layers slowly from a corner or edge.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003ePlan the handling\u003c\/h4\u003e\n\u003cp\u003eCheck access to the pond and keep the sheet supported as you position it. Do not pull sharply or use knives to separate layers.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__included\"\u003e\n    \u003ch3\u003eWhat arrives with your order?\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eOne 2.5m × 2.5m black EPDM pond liner.\u003c\/strong\u003e Protective underlay, adhesives, seam tape, tools and decorative edging are not included. See the selected accessories above for compatible preparation materials and check their coverage before ordering.\u003c\/p\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__questions\"\u003e\n    \u003ch3\u003eBefore you start\u003c\/h3\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs 2.5m × 2.5m the size of the finished pond?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. It is the flat sheet size. Allow for pond depth, shelves and an overlap at every edge. Use the calculator above as a starting estimate and check the actual contours of your design.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs protective underlay included?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. Underlay is sold separately. It helps separate the liner from sharp objects and ground irregularities; it does not replace careful ground preparation.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eDoes this liner contain seams?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eYes. The supplied liner is made from securely joined sheets. Joined-sheet construction is part of this product's specification.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhy might the folded layers stick together?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eFolded layers can stick together after storage under pressure. Allow the liner to reach room temperature and separate them slowly and evenly. Do not use sharp tools or force the layers apart.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhat is the white or matt residue on the rubber?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eManufacturing processing aids can leave a white or matt residue where folded layers touched. This does not affect watertightness, strength or durability. Wipe it away with a soft, damp cloth. Contact us if the liner arrives with tears, punctures, holes or cracks.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n","brand":"Costwise","offers":[{"title":"Default Title","offer_id":55808301695363,"sku":"EPDM900-2.5X2.5-001","price":45.19,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-pond-liner-2-5x2-5-labelled.jpg?v=1792521459"},{"product_id":"2-5m-x-3m-epdm-rubber-pond-liner-1100-gsm","title":"2.5m x 3m EPDM Rubber Pond Liner, 1100 GSM","description":"\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__hero\"\u003e\n    \u003cdiv class=\"eot-aplus__hero-copy\"\u003e\n      \u003ch3\u003eMore room in one direction\u003c\/h3\u003e\n      \u003cp\u003eA rectangular black EPDM rubber sheet for compact garden ponds and water features, with an extra half metre along one side compared with the 2.5m square.\u003c\/p\u003e\n      \u003cul class=\"eot-aplus__hero-specs\"\u003e\n\u003cli\u003e2.5m × 3m sheet\u003c\/li\u003e\n\u003cli\u003e1100gsm EPDM rubber\u003c\/li\u003e\n\u003cli\u003e0.9mm thickness\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003cp\u003eOne liner supplied. Underlay and installation accessories sold separately.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200\" alt=\"Illustrative garden pond with black flexible liner following curved planting shelves\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\u003cfigcaption\u003eIllustrative installation, not a size guide. Pond, plants, stones and accessories are not included.\u003c\/figcaption\u003e\u003c\/figure\u003e\n  \u003c\/section\u003e\n  \u003cdiv class=\"eot-aplus__facts\" aria-label=\"Key liner specifications\"\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e2.5m × 3m\u003c\/strong\u003e\u003cspan\u003eFlat sheet size\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e7.5m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e1100gsm\u003c\/strong\u003e\u003cspan\u003eMaterial weight\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e0.9mm\u003c\/strong\u003e\u003cspan\u003e900-micron thickness\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003csection class=\"eot-aplus__material\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200\" alt=\"Folded black EPDM rubber liner showing the flexible material\" width=\"1200\" height=\"1200\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003eRubber that works with your pond's contours\u003c\/h3\u003e\n      \u003cp\u003eEPDM is a flexible synthetic rubber. It can follow rounded edges, slopes and planting shelves, giving you more freedom over the shape of your pond.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMade for outdoor pond use.\u003c\/strong\u003e UV and ozone resistant for outdoor pond use.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eA clear material specification.\u003c\/strong\u003e 1100gsm material weight and a thickness of 900 microns (0.9mm).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eJoined-sheet construction.\u003c\/strong\u003e This liner is made from securely joined sheets and contains seams. It is not a seamless cut.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__dimensions\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003ePlan the shape before choosing the sheet.\u003c\/h3\u003e\n      \u003cp\u003eThe 2.5m × 3m flat sheet suits a design that needs a little more length than width. Check both dimensions after allowing for depth and an overlap at every edge. The flat sheet area is \u003cstrong\u003enot the finished pond footprint\u003c\/strong\u003e.\u003c\/p\u003e\n      \u003cp\u003eAllow for the deepest part of your pond and an overlap around every edge. Use the sizing calculator below before choosing your liner.\u003c\/p\u003e\n      \u003cp\u003eFor irregular ponds, shelves or waterfalls, measure along the actual contours as well. \u003ca href=\"#EotPondSizing\"\u003eUse the calculator below to find your liner size.\u003c\/a\u003e\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"eot-aplus__diagram\" role=\"img\" aria-label=\"Rectangular flat liner sheet, 3 metres long and 2.5 metres wide. Thickness 0.9 millimetres. Not to scale.\"\u003e\n      \u003cspan class=\"eot-aplus__length\"\u003e3m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__sheet\" style=\"aspect-ratio:3\/2.5;min-height:9rem\"\u003e\n\u003cstrong\u003e7.5m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cspan class=\"eot-aplus__width\"\u003e2.5m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__thickness\"\u003e\n\u003cspan\u003e\u003c\/span\u003e0.9mm thick · not to scale\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n\u003c!-- eot:pond-sizing --\u003e\n\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__preparation\"\u003e\n    \u003cdiv class=\"eot-aplus__section-heading\"\u003e\n\u003ch3\u003ePrepare the pond. Protect the liner.\u003c\/h3\u003e\n\u003cp\u003eA careful start gives the rubber a smooth, supported surface to follow.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200\" alt=\"Illustrative preparation scene showing black liner laid over protective underlay\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 1100px, 100vw\"\u003e\u003cfigcaption\u003eIllustrative preparation scene. Protective underlay is sold separately.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003cdiv class=\"eot-aplus__steps\"\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eClear and prepare\u003c\/h4\u003e\n\u003cp\u003eRemove sharp stones, roots and debris. Shape the pond and shelves, then use suitable protective underlay between the ground and liner.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eUnfold gently\u003c\/h4\u003e\n\u003cp\u003eAfter cold transport, leave the liner at room temperature, around 20°C, for a few hours. Separate the folded layers slowly from a corner or edge.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003ePlan the handling\u003c\/h4\u003e\n\u003cp\u003eCheck access to the pond and keep the sheet supported as you position it. Do not pull sharply or use knives to separate layers.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__included\"\u003e\n    \u003ch3\u003eWhat arrives with your order?\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eOne 2.5m × 3m black EPDM pond liner.\u003c\/strong\u003e Protective underlay, adhesives, seam tape, tools and decorative edging are not included. See the selected accessories above for compatible preparation materials and check their coverage before ordering.\u003c\/p\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__questions\"\u003e\n    \u003ch3\u003eBefore you start\u003c\/h3\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs 2.5m × 3m the size of the finished pond?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. It is the flat sheet size. Allow for pond depth, shelves and an overlap at every edge. Use the calculator above as a starting estimate and check the actual contours of your design.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs protective underlay included?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. Underlay is sold separately. It helps separate the liner from sharp objects and ground irregularities; it does not replace careful ground preparation.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eDoes this liner contain seams?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eYes. The supplied liner is made from securely joined sheets. Joined-sheet construction is part of this product's specification.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhy might the folded layers stick together?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eFolded layers can stick together after storage under pressure. Allow the liner to reach room temperature and separate them slowly and evenly. Do not use sharp tools or force the layers apart.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhat is the white or matt residue on the rubber?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eManufacturing processing aids can leave a white or matt residue where folded layers touched. This does not affect watertightness, strength or durability. Wipe it away with a soft, damp cloth. Contact us if the liner arrives with tears, punctures, holes or cracks.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n","brand":"Costwise","offers":[{"title":"Default Title","offer_id":55808302154115,"sku":"EPDM900-2.5X3-001","price":49.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-pond-liner-2-5x3-labelled.jpg?v=1792521521"},{"product_id":"2m-x-10m-epdm-rubber-pond-liner-1100-gsm","title":"2m x 10m EPDM Rubber Pond Liner, 1100 GSM","description":"\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__hero\"\u003e\n    \u003cdiv class=\"eot-aplus__hero-copy\"\u003e\n      \u003ch3\u003eA long sheet for a narrow design\u003c\/h3\u003e\n      \u003cp\u003ePlan a narrow water feature with a 2m × 10m black EPDM rubber sheet. Its long format gives you room along the length, while the 2m width needs careful allowance for the sides.\u003c\/p\u003e\n      \u003cul class=\"eot-aplus__hero-specs\"\u003e\n\u003cli\u003e2m × 10m sheet\u003c\/li\u003e\n\u003cli\u003e1100gsm EPDM rubber\u003c\/li\u003e\n\u003cli\u003e0.9mm thickness\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003cp\u003eOne liner supplied. Underlay and installation accessories sold separately.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200\" alt=\"Illustrative garden pond with black flexible liner following curved planting shelves\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\u003cfigcaption\u003eIllustrative installation, not a size guide. Pond, plants, stones and accessories are not included.\u003c\/figcaption\u003e\u003c\/figure\u003e\n  \u003c\/section\u003e\n  \u003cdiv class=\"eot-aplus__facts\" aria-label=\"Key liner specifications\"\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e2m × 10m\u003c\/strong\u003e\u003cspan\u003eFlat sheet size\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e20m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e1100gsm\u003c\/strong\u003e\u003cspan\u003eMaterial weight\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e0.9mm\u003c\/strong\u003e\u003cspan\u003e900-micron thickness\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003csection class=\"eot-aplus__material\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200\" alt=\"Folded black EPDM rubber liner showing the flexible material\" width=\"1200\" height=\"1200\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003eRubber that works with your pond's contours\u003c\/h3\u003e\n      \u003cp\u003eEPDM is a flexible synthetic rubber. It can follow rounded edges, slopes and planting shelves, giving you more freedom over the shape of your pond.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMade for outdoor pond use.\u003c\/strong\u003e UV and ozone resistant for outdoor pond use.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eA clear material specification.\u003c\/strong\u003e 1100gsm material weight and a thickness of 900 microns (0.9mm).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eJoined-sheet construction.\u003c\/strong\u003e This liner is made from securely joined sheets and contains seams. It is not a seamless cut.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__dimensions\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003eLong format. Width matters most.\u003c\/h3\u003e\n      \u003cp\u003eThe 2m × 10m sheet has a flat area of 20m², but its narrow width limits the finished feature once depth and edge allowances are included. For a stream, measure the entire bed, bends, drops and ends along their contours. The flat sheet area is \u003cstrong\u003enot the finished pond footprint\u003c\/strong\u003e.\u003c\/p\u003e\n      \u003cp\u003eAllow for the deepest part of your pond and an overlap around every edge. Use the sizing calculator below before choosing your liner.\u003c\/p\u003e\n      \u003cp\u003eFor irregular ponds, shelves or waterfalls, measure along the actual contours as well. \u003ca href=\"#EotPondSizing\"\u003eUse the calculator below to find your liner size.\u003c\/a\u003e\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"eot-aplus__diagram\" role=\"img\" aria-label=\"Rectangular flat liner sheet, 10 metres long and 2 metres wide. Thickness 0.9 millimetres. Not to scale.\"\u003e\n      \u003cspan class=\"eot-aplus__length\"\u003e10m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__sheet\" style=\"width:100%;aspect-ratio:10\/2;min-height:9rem\"\u003e\n\u003cstrong\u003e20m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cspan class=\"eot-aplus__width\"\u003e2m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__thickness\"\u003e\n\u003cspan\u003e\u003c\/span\u003e0.9mm thick · not to scale\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n\u003c!-- eot:pond-sizing --\u003e\n\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__preparation\"\u003e\n    \u003cdiv class=\"eot-aplus__section-heading\"\u003e\n\u003ch3\u003ePrepare the pond. Protect the liner.\u003c\/h3\u003e\n\u003cp\u003eA careful start gives the rubber a smooth, supported surface to follow.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200\" alt=\"Illustrative preparation scene showing black liner laid over protective underlay\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 1100px, 100vw\"\u003e\u003cfigcaption\u003eIllustrative preparation scene. Protective underlay is sold separately.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003cdiv class=\"eot-aplus__steps\"\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eClear and prepare\u003c\/h4\u003e\n\u003cp\u003eRemove sharp stones, roots and debris. Shape the pond and shelves, then use suitable protective underlay between the ground and liner.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eUnfold gently\u003c\/h4\u003e\n\u003cp\u003eAfter cold transport, leave the liner at room temperature, around 20°C, for a few hours. Separate the folded layers slowly from a corner or edge.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003ePlan the handling\u003c\/h4\u003e\n\u003cp\u003ePlan access and arrange suitable help before moving this large sheet into place. Do not pull sharply or use knives to separate layers.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__included\"\u003e\n    \u003ch3\u003eWhat arrives with your order?\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eOne 2m × 10m black EPDM pond liner.\u003c\/strong\u003e Protective underlay, adhesives, seam tape, tools and decorative edging are not included. See the selected accessories above for compatible preparation materials and check their coverage before ordering.\u003c\/p\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__questions\"\u003e\n    \u003ch3\u003eBefore you start\u003c\/h3\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs 2m × 10m the size of the finished pond?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. It is the flat sheet size. Allow for pond depth, shelves and an overlap at every edge. Use the calculator above as a starting estimate and check the actual contours of your design.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs protective underlay included?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. Underlay is sold separately. It helps separate the liner from sharp objects and ground irregularities; it does not replace careful ground preparation.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eDoes this liner contain seams?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eYes. The supplied liner is made from securely joined sheets. Joined-sheet construction is part of this product's specification.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhy might the folded layers stick together?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eFolded layers can stick together after storage under pressure. Allow the liner to reach room temperature and separate them slowly and evenly. Do not use sharp tools or force the layers apart.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhat is the white or matt residue on the rubber?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eManufacturing processing aids can leave a white or matt residue where folded layers touched. This does not affect watertightness, strength or durability. Wipe it away with a soft, damp cloth. Contact us if the liner arrives with tears, punctures, holes or cracks.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n","brand":"Costwise","offers":[{"title":"Default Title","offer_id":55808303366531,"sku":"EPDM900-2X10-001","price":132.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-pond-liner-2x10-labelled.jpg?v=1792521570"},{"product_id":"3m-x-3m-epdm-rubber-pond-liner-1100-gsm","title":"3m x 3m EPDM Rubber Pond Liner, 1100 GSM","description":"\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__hero\"\u003e\n    \u003cdiv class=\"eot-aplus__hero-copy\"\u003e\n      \u003ch3\u003eA square sheet. A pond shaped by you.\u003c\/h3\u003e\n      \u003cp\u003eCreate a compact garden pond with black EPDM rubber that follows curves, slopes and planting shelves. Start with your measurements, then choose the shape.\u003c\/p\u003e\n      \u003cul class=\"eot-aplus__hero-specs\"\u003e\n\u003cli\u003e3m × 3m sheet\u003c\/li\u003e\n\u003cli\u003e1100gsm EPDM rubber\u003c\/li\u003e\n\u003cli\u003e0.9mm thickness\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003cp\u003eOne liner supplied. Underlay and installation accessories sold separately.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200\" alt=\"Illustrative garden pond with black flexible liner following curved planting shelves\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\u003cfigcaption\u003eIllustrative installation, not a size guide. Pond, plants, stones and accessories are not included.\u003c\/figcaption\u003e\u003c\/figure\u003e\n  \u003c\/section\u003e\n  \u003cdiv class=\"eot-aplus__facts\" aria-label=\"Key liner specifications\"\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e3m × 3m\u003c\/strong\u003e\u003cspan\u003eFlat sheet size\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e9m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e1100gsm\u003c\/strong\u003e\u003cspan\u003eMaterial weight\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e0.9mm\u003c\/strong\u003e\u003cspan\u003e900-micron thickness\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003csection class=\"eot-aplus__material\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200\" alt=\"Folded black EPDM rubber liner showing the flexible material\" width=\"1200\" height=\"1200\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003eRubber that works with your pond's contours\u003c\/h3\u003e\n      \u003cp\u003eEPDM is a flexible synthetic rubber. It can follow rounded edges, slopes and planting shelves, giving you more freedom over the shape of your pond.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMade for outdoor pond use.\u003c\/strong\u003e UV and ozone resistant for outdoor pond use.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eA clear material specification.\u003c\/strong\u003e 1100gsm material weight and a thickness of 900 microns (0.9mm).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eJoined-sheet construction.\u003c\/strong\u003e This liner is made from securely joined sheets and contains seams. It is not a seamless cut.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__dimensions\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003eRoom for curves within a square sheet.\u003c\/h3\u003e\n      \u003cp\u003eA 3m × 3m sheet provides 9m² of flat liner. A curved or irregular pond can fit within a square sheet, but depth and edging reduce the dimensions available for the water surface. The flat sheet area is \u003cstrong\u003enot the finished pond footprint\u003c\/strong\u003e.\u003c\/p\u003e\n      \u003cp\u003eAllow for the deepest part of your pond and an overlap around every edge. Use the sizing calculator below before choosing your liner.\u003c\/p\u003e\n      \u003cp\u003eFor irregular ponds, shelves or waterfalls, measure along the actual contours as well. \u003ca href=\"#EotPondSizing\"\u003eUse the calculator below to find your liner size.\u003c\/a\u003e\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"eot-aplus__diagram\" role=\"img\" aria-label=\"Rectangular flat liner sheet, 3 metres long and 3 metres wide. Thickness 0.9 millimetres. Not to scale.\"\u003e\n      \u003cspan class=\"eot-aplus__length\"\u003e3m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__sheet\" style=\"aspect-ratio:3\/3;min-height:9rem\"\u003e\n\u003cstrong\u003e9m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cspan class=\"eot-aplus__width\"\u003e3m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__thickness\"\u003e\n\u003cspan\u003e\u003c\/span\u003e0.9mm thick · not to scale\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n\u003c!-- eot:pond-sizing --\u003e\n\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__preparation\"\u003e\n    \u003cdiv class=\"eot-aplus__section-heading\"\u003e\n\u003ch3\u003ePrepare the pond. Protect the liner.\u003c\/h3\u003e\n\u003cp\u003eA careful start gives the rubber a smooth, supported surface to follow.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200\" alt=\"Illustrative preparation scene showing black liner laid over protective underlay\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 1100px, 100vw\"\u003e\u003cfigcaption\u003eIllustrative preparation scene. Protective underlay is sold separately.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003cdiv class=\"eot-aplus__steps\"\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eClear and prepare\u003c\/h4\u003e\n\u003cp\u003eRemove sharp stones, roots and debris. Shape the pond and shelves, then use suitable protective underlay between the ground and liner.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eUnfold gently\u003c\/h4\u003e\n\u003cp\u003eAfter cold transport, leave the liner at room temperature, around 20°C, for a few hours. Separate the folded layers slowly from a corner or edge.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003ePlan the handling\u003c\/h4\u003e\n\u003cp\u003eCheck access to the pond and keep the sheet supported as you position it. Do not pull sharply or use knives to separate layers.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__included\"\u003e\n    \u003ch3\u003eWhat arrives with your order?\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eOne 3m × 3m black EPDM pond liner.\u003c\/strong\u003e Protective underlay, adhesives, seam tape, tools and decorative edging are not included. See the selected accessories above for compatible preparation materials and check their coverage before ordering.\u003c\/p\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__questions\"\u003e\n    \u003ch3\u003eBefore you start\u003c\/h3\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs 3m × 3m the size of the finished pond?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. It is the flat sheet size. Allow for pond depth, shelves and an overlap at every edge. Use the calculator above as a starting estimate and check the actual contours of your design.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs protective underlay included?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. Underlay is sold separately. It helps separate the liner from sharp objects and ground irregularities; it does not replace careful ground preparation.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eDoes this liner contain seams?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eYes. The supplied liner is made from securely joined sheets. Joined-sheet construction is part of this product's specification.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhy might the folded layers stick together?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eFolded layers can stick together after storage under pressure. Allow the liner to reach room temperature and separate them slowly and evenly. Do not use sharp tools or force the layers apart.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhat is the white or matt residue on the rubber?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eManufacturing processing aids can leave a white or matt residue where folded layers touched. This does not affect watertightness, strength or durability. Wipe it away with a soft, damp cloth. Contact us if the liner arrives with tears, punctures, holes or cracks.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n","brand":"Costwise","offers":[{"title":"Default Title","offer_id":55808304906627,"sku":"EPDM900-3X3-001","price":62.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-pond-liner-3m-3m-labelled.jpg?v=1792521191"},{"product_id":"3m-x-4m-epdm-rubber-pond-liner-1100-gsm","title":"3m x 4m EPDM Rubber Pond Liner, 1100 GSM","description":"\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__hero\"\u003e\n    \u003cdiv class=\"eot-aplus__hero-copy\"\u003e\n      \u003ch3\u003eShape a garden pond your way\u003c\/h3\u003e\n      \u003cp\u003eBring a pond into your garden with a flexible 3m × 4m black EPDM rubber sheet. Follow your chosen contours and plan space for planting shelves and edging.\u003c\/p\u003e\n      \u003cul class=\"eot-aplus__hero-specs\"\u003e\n\u003cli\u003e3m × 4m sheet\u003c\/li\u003e\n\u003cli\u003e1100gsm EPDM rubber\u003c\/li\u003e\n\u003cli\u003e0.9mm thickness\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003cp\u003eOne liner supplied. Underlay and installation accessories sold separately.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200\" alt=\"Illustrative garden pond with black flexible liner following curved planting shelves\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\u003cfigcaption\u003eIllustrative installation, not a size guide. Pond, plants, stones and accessories are not included.\u003c\/figcaption\u003e\u003c\/figure\u003e\n  \u003c\/section\u003e\n  \u003cdiv class=\"eot-aplus__facts\" aria-label=\"Key liner specifications\"\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e3m × 4m\u003c\/strong\u003e\u003cspan\u003eFlat sheet size\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e12m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e1100gsm\u003c\/strong\u003e\u003cspan\u003eMaterial weight\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e0.9mm\u003c\/strong\u003e\u003cspan\u003e900-micron thickness\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003csection class=\"eot-aplus__material\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200\" alt=\"Folded black EPDM rubber liner showing the flexible material\" width=\"1200\" height=\"1200\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003eRubber that works with your pond's contours\u003c\/h3\u003e\n      \u003cp\u003eEPDM is a flexible synthetic rubber. It can follow rounded edges, slopes and planting shelves, giving you more freedom over the shape of your pond.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMade for outdoor pond use.\u003c\/strong\u003e UV and ozone resistant for outdoor pond use.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eA clear material specification.\u003c\/strong\u003e 1100gsm material weight and a thickness of 900 microns (0.9mm).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eJoined-sheet construction.\u003c\/strong\u003e This liner is made from securely joined sheets and contains seams. It is not a seamless cut.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__dimensions\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003eA rectangular sheet for your pond plan.\u003c\/h3\u003e\n      \u003cp\u003eThe 3m × 4m flat sheet provides 12m² of liner before allowing for the sides and edges. Work from the deepest part of your design rather than the water surface alone. The flat sheet area is \u003cstrong\u003enot the finished pond footprint\u003c\/strong\u003e.\u003c\/p\u003e\n      \u003cp\u003eAllow for the deepest part of your pond and an overlap around every edge. Use the sizing calculator below before choosing your liner.\u003c\/p\u003e\n      \u003cp\u003eFor irregular ponds, shelves or waterfalls, measure along the actual contours as well. \u003ca href=\"#EotPondSizing\"\u003eUse the calculator below to find your liner size.\u003c\/a\u003e\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"eot-aplus__diagram\" role=\"img\" aria-label=\"Rectangular flat liner sheet, 4 metres long and 3 metres wide. Thickness 0.9 millimetres. Not to scale.\"\u003e\n      \u003cspan class=\"eot-aplus__length\"\u003e4m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__sheet\" style=\"width:100%;aspect-ratio:4\/3;min-height:9rem\"\u003e\n\u003cstrong\u003e12m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cspan class=\"eot-aplus__width\"\u003e3m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__thickness\"\u003e\n\u003cspan\u003e\u003c\/span\u003e0.9mm thick · not to scale\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n\u003c!-- eot:pond-sizing --\u003e\n\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__preparation\"\u003e\n    \u003cdiv class=\"eot-aplus__section-heading\"\u003e\n\u003ch3\u003ePrepare the pond. Protect the liner.\u003c\/h3\u003e\n\u003cp\u003eA careful start gives the rubber a smooth, supported surface to follow.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200\" alt=\"Illustrative preparation scene showing black liner laid over protective underlay\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 1100px, 100vw\"\u003e\u003cfigcaption\u003eIllustrative preparation scene. Protective underlay is sold separately.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003cdiv class=\"eot-aplus__steps\"\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eClear and prepare\u003c\/h4\u003e\n\u003cp\u003eRemove sharp stones, roots and debris. Shape the pond and shelves, then use suitable protective underlay between the ground and liner.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eUnfold gently\u003c\/h4\u003e\n\u003cp\u003eAfter cold transport, leave the liner at room temperature, around 20°C, for a few hours. Separate the folded layers slowly from a corner or edge.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003ePlan the handling\u003c\/h4\u003e\n\u003cp\u003eCheck access to the pond and keep the sheet supported as you position it. Do not pull sharply or use knives to separate layers.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__included\"\u003e\n    \u003ch3\u003eWhat arrives with your order?\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eOne 3m × 4m black EPDM pond liner.\u003c\/strong\u003e Protective underlay, adhesives, seam tape, tools and decorative edging are not included. See the selected accessories above for compatible preparation materials and check their coverage before ordering.\u003c\/p\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__questions\"\u003e\n    \u003ch3\u003eBefore you start\u003c\/h3\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs 3m × 4m the size of the finished pond?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. It is the flat sheet size. Allow for pond depth, shelves and an overlap at every edge. Use the calculator above as a starting estimate and check the actual contours of your design.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs protective underlay included?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. Underlay is sold separately. It helps separate the liner from sharp objects and ground irregularities; it does not replace careful ground preparation.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eDoes this liner contain seams?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eYes. The supplied liner is made from securely joined sheets. Joined-sheet construction is part of this product's specification.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhy might the folded layers stick together?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eFolded layers can stick together after storage under pressure. Allow the liner to reach room temperature and separate them slowly and evenly. Do not use sharp tools or force the layers apart.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhat is the white or matt residue on the rubber?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eManufacturing processing aids can leave a white or matt residue where folded layers touched. This does not affect watertightness, strength or durability. Wipe it away with a soft, damp cloth. Contact us if the liner arrives with tears, punctures, holes or cracks.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n","brand":"Costwise","offers":[{"title":"Default Title","offer_id":55808306250115,"sku":"EPDM900-3X4-001","price":87.19,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-pond-liner-3x4-labelled.jpg?v=1792521661"},{"product_id":"4m-x-5m-epdm-rubber-pond-liner-1100-gsm","title":"4m x 5m EPDM Rubber Pond Liner, 1100 GSM","description":"\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__hero\"\u003e\n    \u003cdiv class=\"eot-aplus__hero-copy\"\u003e\n      \u003ch3\u003eRoom to shape your garden pond\u003c\/h3\u003e\n      \u003cp\u003eUse a flexible 4m × 5m black EPDM rubber sheet to follow the curves and shelves of your pond design. Measure the full shape before you order.\u003c\/p\u003e\n      \u003cul class=\"eot-aplus__hero-specs\"\u003e\n\u003cli\u003e4m × 5m sheet\u003c\/li\u003e\n\u003cli\u003e1100gsm EPDM rubber\u003c\/li\u003e\n\u003cli\u003e0.9mm thickness\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003cp\u003eOne liner supplied. Underlay and installation accessories sold separately.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200\" alt=\"Illustrative garden pond with black flexible liner following curved planting shelves\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\u003cfigcaption\u003eIllustrative installation, not a size guide. Pond, plants, stones and accessories are not included.\u003c\/figcaption\u003e\u003c\/figure\u003e\n  \u003c\/section\u003e\n  \u003cdiv class=\"eot-aplus__facts\" aria-label=\"Key liner specifications\"\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e4m × 5m\u003c\/strong\u003e\u003cspan\u003eFlat sheet size\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e20m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e1100gsm\u003c\/strong\u003e\u003cspan\u003eMaterial weight\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e0.9mm\u003c\/strong\u003e\u003cspan\u003e900-micron thickness\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003csection class=\"eot-aplus__material\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200\" alt=\"Folded black EPDM rubber liner showing the flexible material\" width=\"1200\" height=\"1200\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003eRubber that works with your pond's contours\u003c\/h3\u003e\n      \u003cp\u003eEPDM is a flexible synthetic rubber. It can follow rounded edges, slopes and planting shelves, giving you more freedom over the shape of your pond.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMade for outdoor pond use.\u003c\/strong\u003e UV and ozone resistant for outdoor pond use.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eA clear material specification.\u003c\/strong\u003e 1100gsm material weight and a thickness of 900 microns (0.9mm).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eJoined-sheet construction.\u003c\/strong\u003e This liner is made from securely joined sheets and contains seams. It is not a seamless cut.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__dimensions\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003e20m² of sheet. A measured fit.\u003c\/h3\u003e\n      \u003cp\u003eThe 4m × 5m sheet provides 20m² of flat liner. The finished pond footprint will be smaller because the sheet also needs to cover its sides, shelves and edging. The flat sheet area is \u003cstrong\u003enot the finished pond footprint\u003c\/strong\u003e.\u003c\/p\u003e\n      \u003cp\u003eAllow for the deepest part of your pond and an overlap around every edge. Use the sizing calculator below before choosing your liner.\u003c\/p\u003e\n      \u003cp\u003eFor irregular ponds, shelves or waterfalls, measure along the actual contours as well. \u003ca href=\"#EotPondSizing\"\u003eUse the calculator below to find your liner size.\u003c\/a\u003e\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"eot-aplus__diagram\" role=\"img\" aria-label=\"Rectangular flat liner sheet, 5 metres long and 4 metres wide. Thickness 0.9 millimetres. Not to scale.\"\u003e\n      \u003cspan class=\"eot-aplus__length\"\u003e5m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__sheet\" style=\"width:100%;aspect-ratio:5\/4;min-height:9rem\"\u003e\n\u003cstrong\u003e20m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cspan class=\"eot-aplus__width\"\u003e4m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__thickness\"\u003e\n\u003cspan\u003e\u003c\/span\u003e0.9mm thick · not to scale\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n\u003c!-- eot:pond-sizing --\u003e\n\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__preparation\"\u003e\n    \u003cdiv class=\"eot-aplus__section-heading\"\u003e\n\u003ch3\u003ePrepare the pond. Protect the liner.\u003c\/h3\u003e\n\u003cp\u003eA careful start gives the rubber a smooth, supported surface to follow.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200\" alt=\"Illustrative preparation scene showing black liner laid over protective underlay\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 1100px, 100vw\"\u003e\u003cfigcaption\u003eIllustrative preparation scene. Protective underlay is sold separately.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003cdiv class=\"eot-aplus__steps\"\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eClear and prepare\u003c\/h4\u003e\n\u003cp\u003eRemove sharp stones, roots and debris. Shape the pond and shelves, then use suitable protective underlay between the ground and liner.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eUnfold gently\u003c\/h4\u003e\n\u003cp\u003eAfter cold transport, leave the liner at room temperature, around 20°C, for a few hours. Separate the folded layers slowly from a corner or edge.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003ePlan the handling\u003c\/h4\u003e\n\u003cp\u003ePlan access and arrange suitable help before moving this large sheet into place. Do not pull sharply or use knives to separate layers.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__included\"\u003e\n    \u003ch3\u003eWhat arrives with your order?\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eOne 4m × 5m black EPDM pond liner.\u003c\/strong\u003e Protective underlay, adhesives, seam tape, tools and decorative edging are not included. See the selected accessories above for compatible preparation materials and check their coverage before ordering.\u003c\/p\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__questions\"\u003e\n    \u003ch3\u003eBefore you start\u003c\/h3\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs 4m × 5m the size of the finished pond?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. It is the flat sheet size. Allow for pond depth, shelves and an overlap at every edge. Use the calculator above as a starting estimate and check the actual contours of your design.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs protective underlay included?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. Underlay is sold separately. It helps separate the liner from sharp objects and ground irregularities; it does not replace careful ground preparation.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eDoes this liner contain seams?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eYes. The supplied liner is made from securely joined sheets. Joined-sheet construction is part of this product's specification.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhy might the folded layers stick together?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eFolded layers can stick together after storage under pressure. Allow the liner to reach room temperature and separate them slowly and evenly. Do not use sharp tools or force the layers apart.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhat is the white or matt residue on the rubber?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eManufacturing processing aids can leave a white or matt residue where folded layers touched. This does not affect watertightness, strength or durability. Wipe it away with a soft, damp cloth. Contact us if the liner arrives with tears, punctures, holes or cracks.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n","brand":"Costwise","offers":[{"title":"Default Title","offer_id":55808307167619,"sku":"EPDM900-4X5-001","price":132.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-pond-liner-4x5-labelled.jpg?v=1792521706"},{"product_id":"5m-x-6m-epdm-rubber-pond-liner-1100-gsm","title":"5m x 6m EPDM Rubber Pond Liner, 1100 GSM","description":"\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__hero\"\u003e\n    \u003cdiv class=\"eot-aplus__hero-copy\"\u003e\n      \u003ch3\u003eA flexible foundation for your garden pond\u003c\/h3\u003e\n      \u003cp\u003eBring curves, planting shelves and water into your garden with a black EPDM rubber pond liner that follows the shape you create.\u003c\/p\u003e\n      \u003cul class=\"eot-aplus__hero-specs\"\u003e\n\u003cli\u003e5m × 6m sheet\u003c\/li\u003e\n\u003cli\u003e1100gsm EPDM rubber\u003c\/li\u003e\n\u003cli\u003e0.9mm thickness\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003cp\u003eOne liner supplied. Underlay and installation accessories sold separately.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200\" alt=\"Illustrative garden pond with black flexible liner following curved planting shelves\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\u003cfigcaption\u003eIllustrative installation. Pond, plants, stones and accessories are not included.\u003c\/figcaption\u003e\u003c\/figure\u003e\n  \u003c\/section\u003e\n  \u003cdiv class=\"eot-aplus__facts\" aria-label=\"Key liner specifications\"\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e5m × 6m\u003c\/strong\u003e\u003cspan\u003eFlat sheet size\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e30m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e1100gsm\u003c\/strong\u003e\u003cspan\u003eMaterial weight\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e0.9mm\u003c\/strong\u003e\u003cspan\u003e900-micron thickness\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003csection class=\"eot-aplus__material\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200\" alt=\"Folded black EPDM rubber liner showing the flexible material\" width=\"1200\" height=\"1200\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003eRubber that works with your pond's contours\u003c\/h3\u003e\n      \u003cp\u003eEPDM is a flexible synthetic rubber. It can follow rounded edges, slopes and planting shelves, giving you more freedom over the shape of your pond.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMade for outdoor pond use.\u003c\/strong\u003e UV and ozone resistant for outdoor pond use.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eA clear material specification.\u003c\/strong\u003e 1100gsm material weight and a thickness of 900 microns (0.9mm).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eJoined-sheet construction.\u003c\/strong\u003e This liner is made from securely joined sheets and contains seams. It is not a seamless cut.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__dimensions\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003eA 5m × 6m sheet. A pond shaped by you.\u003c\/h3\u003e\n      \u003cp\u003eThe supplied liner has a flat area of 30m². That is the sheet area, \u003cstrong\u003enot the finished pond footprint\u003c\/strong\u003e: some of the liner must cover the sides, shelves and edging.\u003c\/p\u003e\n      \u003cp\u003eAllow for the deepest part of your pond and an overlap around every edge. Use the sizing calculator below before choosing your liner.\u003c\/p\u003e\n      \u003cp\u003eFor irregular ponds, shelves or waterfalls, measure along the actual contours as well. \u003ca href=\"#EotPondSizing\"\u003eUse the calculator below to find your liner size.\u003c\/a\u003e\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"eot-aplus__diagram\" role=\"img\" aria-label=\"Rectangular flat liner sheet, 6 metres long and 5 metres wide. Thickness 0.9 millimetres. Not to scale.\"\u003e\n      \u003cspan class=\"eot-aplus__length\"\u003e6m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__sheet\"\u003e\n\u003cstrong\u003e30m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cspan class=\"eot-aplus__width\"\u003e5m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__thickness\"\u003e\n\u003cspan\u003e\u003c\/span\u003e0.9mm thick · not to scale\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n\u003c!-- eot:pond-sizing --\u003e\n\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__preparation\"\u003e\n    \u003cdiv class=\"eot-aplus__section-heading\"\u003e\n\u003ch3\u003ePrepare the pond. Protect the liner.\u003c\/h3\u003e\n\u003cp\u003eA careful start gives the rubber a smooth, supported surface to follow.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200\" alt=\"Illustrative preparation scene showing black liner laid over protective underlay\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 1100px, 100vw\"\u003e\u003cfigcaption\u003eIllustrative preparation scene. Protective underlay is sold separately.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003cdiv class=\"eot-aplus__steps\"\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eClear and prepare\u003c\/h4\u003e\n\u003cp\u003eRemove sharp stones, roots and debris. Shape the pond and shelves, then use suitable protective underlay between the ground and liner.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eUnfold gently\u003c\/h4\u003e\n\u003cp\u003eAfter cold transport, leave the liner at room temperature, around 20°C, for a few hours. Separate the folded layers slowly from a corner or edge.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003ePlan the handling\u003c\/h4\u003e\n\u003cp\u003eLarge sheets are heavy. Plan access and arrange suitable help before moving the liner into place. Do not pull sharply or use knives to separate layers.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__included\"\u003e\n    \u003ch3\u003eWhat arrives with your order?\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eOne 5m × 6m black EPDM pond liner.\u003c\/strong\u003e Protective underlay, adhesives, seam tape, tools and decorative edging are not included. See the selected accessories above for compatible preparation materials and check their coverage before ordering.\u003c\/p\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__questions\"\u003e\n    \u003ch3\u003eBefore you start\u003c\/h3\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs 5m × 6m the size of the finished pond?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. It is the flat sheet size. Allow for pond depth, shelves and an overlap at every edge. Use the calculator above as a starting estimate and check the actual contours of your design.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs protective underlay included?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. Underlay is sold separately. It helps separate the liner from sharp objects and ground irregularities; it does not replace careful ground preparation.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eDoes this liner contain seams?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eYes. The supplied liner is made from securely joined sheets. Joined-sheet construction is part of this product's specification.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhy might the folded layers stick together?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eFolded layers can stick together after storage under pressure. Allow the liner to reach room temperature and separate them slowly and evenly. Do not use sharp tools or force the layers apart.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhat is the white or matt residue on the rubber?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eManufacturing processing aids can leave a white or matt residue where folded layers touched. This does not affect watertightness, strength or durability. Wipe it away with a soft, damp cloth. Contact us if the liner arrives with tears, punctures, holes or cracks.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n","brand":"Costwise","offers":[{"title":"Default Title","offer_id":55808308576643,"sku":"EPDM900-5X6-001","price":223.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-pond-liner-5m-6m-labelled.jpg?v=1792504450"},{"product_id":"6m-x-6m-epdm-rubber-pond-liner-1100-gsm","title":"6m x 6m EPDM Rubber Pond Liner, 1100 GSM","description":"\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__hero\"\u003e\n    \u003cdiv class=\"eot-aplus__hero-copy\"\u003e\n      \u003ch3\u003eA broad square sheet for your pond design\u003c\/h3\u003e\n      \u003cp\u003ePlan a wider pond layout with a 6m × 6m black EPDM rubber sheet. Its flexibility lets the liner settle into curves and shelves without forcing a rigid pond shape.\u003c\/p\u003e\n      \u003cul class=\"eot-aplus__hero-specs\"\u003e\n\u003cli\u003e6m × 6m sheet\u003c\/li\u003e\n\u003cli\u003e1100gsm EPDM rubber\u003c\/li\u003e\n\u003cli\u003e0.9mm thickness\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003cp\u003eOne liner supplied. Underlay and installation accessories sold separately.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200\" alt=\"Illustrative garden pond with black flexible liner following curved planting shelves\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\u003cfigcaption\u003eIllustrative installation, not a size guide. Pond, plants, stones and accessories are not included.\u003c\/figcaption\u003e\u003c\/figure\u003e\n  \u003c\/section\u003e\n  \u003cdiv class=\"eot-aplus__facts\" aria-label=\"Key liner specifications\"\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e6m × 6m\u003c\/strong\u003e\u003cspan\u003eFlat sheet size\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e36m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e1100gsm\u003c\/strong\u003e\u003cspan\u003eMaterial weight\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e0.9mm\u003c\/strong\u003e\u003cspan\u003e900-micron thickness\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003csection class=\"eot-aplus__material\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200\" alt=\"Folded black EPDM rubber liner showing the flexible material\" width=\"1200\" height=\"1200\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003eRubber that works with your pond's contours\u003c\/h3\u003e\n      \u003cp\u003eEPDM is a flexible synthetic rubber. It can follow rounded edges, slopes and planting shelves, giving you more freedom over the shape of your pond.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMade for outdoor pond use.\u003c\/strong\u003e UV and ozone resistant for outdoor pond use.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eA clear material specification.\u003c\/strong\u003e 1100gsm material weight and a thickness of 900 microns (0.9mm).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eJoined-sheet construction.\u003c\/strong\u003e This liner is made from securely joined sheets and contains seams. It is not a seamless cut.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__dimensions\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003ePlan the fit across both dimensions.\u003c\/h3\u003e\n      \u003cp\u003eThe 6m × 6m sheet has a flat area of 36m². Allow for depth and edging in both directions, and plan access and handling before bringing a large sheet to the pond. The flat sheet area is \u003cstrong\u003enot the finished pond footprint\u003c\/strong\u003e.\u003c\/p\u003e\n      \u003cp\u003eAllow for the deepest part of your pond and an overlap around every edge. Use the sizing calculator below before choosing your liner.\u003c\/p\u003e\n      \u003cp\u003eFor irregular ponds, shelves or waterfalls, measure along the actual contours as well. \u003ca href=\"#EotPondSizing\"\u003eUse the calculator below to find your liner size.\u003c\/a\u003e\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"eot-aplus__diagram\" role=\"img\" aria-label=\"Rectangular flat liner sheet, 6 metres long and 6 metres wide. Thickness 0.9 millimetres. Not to scale.\"\u003e\n      \u003cspan class=\"eot-aplus__length\"\u003e6m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__sheet\" style=\"width:100%;aspect-ratio:6\/6;min-height:9rem\"\u003e\n\u003cstrong\u003e36m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cspan class=\"eot-aplus__width\"\u003e6m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__thickness\"\u003e\n\u003cspan\u003e\u003c\/span\u003e0.9mm thick · not to scale\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n\u003c!-- eot:pond-sizing --\u003e\n\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__preparation\"\u003e\n    \u003cdiv class=\"eot-aplus__section-heading\"\u003e\n\u003ch3\u003ePrepare the pond. Protect the liner.\u003c\/h3\u003e\n\u003cp\u003eA careful start gives the rubber a smooth, supported surface to follow.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200\" alt=\"Illustrative preparation scene showing black liner laid over protective underlay\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 1100px, 100vw\"\u003e\u003cfigcaption\u003eIllustrative preparation scene. Protective underlay is sold separately.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003cdiv class=\"eot-aplus__steps\"\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eClear and prepare\u003c\/h4\u003e\n\u003cp\u003eRemove sharp stones, roots and debris. Shape the pond and shelves, then use suitable protective underlay between the ground and liner.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eUnfold gently\u003c\/h4\u003e\n\u003cp\u003eAfter cold transport, leave the liner at room temperature, around 20°C, for a few hours. Separate the folded layers slowly from a corner or edge.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003ePlan the handling\u003c\/h4\u003e\n\u003cp\u003ePlan access and arrange suitable help before moving this large sheet into place. Do not pull sharply or use knives to separate layers.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__included\"\u003e\n    \u003ch3\u003eWhat arrives with your order?\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eOne 6m × 6m black EPDM pond liner.\u003c\/strong\u003e Protective underlay, adhesives, seam tape, tools and decorative edging are not included. See the selected accessories above for compatible preparation materials and check their coverage before ordering.\u003c\/p\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__questions\"\u003e\n    \u003ch3\u003eBefore you start\u003c\/h3\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs 6m × 6m the size of the finished pond?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. It is the flat sheet size. Allow for pond depth, shelves and an overlap at every edge. Use the calculator above as a starting estimate and check the actual contours of your design.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs protective underlay included?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. Underlay is sold separately. It helps separate the liner from sharp objects and ground irregularities; it does not replace careful ground preparation.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eDoes this liner contain seams?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eYes. The supplied liner is made from securely joined sheets. Joined-sheet construction is part of this product's specification.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhy might the folded layers stick together?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eFolded layers can stick together after storage under pressure. Allow the liner to reach room temperature and separate them slowly and evenly. Do not use sharp tools or force the layers apart.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhat is the white or matt residue on the rubber?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eManufacturing processing aids can leave a white or matt residue where folded layers touched. This does not affect watertightness, strength or durability. Wipe it away with a soft, damp cloth. Contact us if the liner arrives with tears, punctures, holes or cracks.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n","brand":"Costwise","offers":[{"title":"Default Title","offer_id":55808309920131,"sku":"EPDM900-6X6-001","price":303.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-pond-liner-6x6-labelled.jpg?v=1792521758"},{"product_id":"8m-x-10m-epdm-rubber-pond-liner-1100-gsm","title":"8m x 10m EPDM Rubber Pond Liner, 1100 GSM","description":"\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__hero\"\u003e\n    \u003cdiv class=\"eot-aplus__hero-copy\"\u003e\n      \u003ch3\u003eA generous sheet for a carefully planned pond\u003c\/h3\u003e\n      \u003cp\u003eCreate your pond layout with an 8m × 10m black EPDM rubber sheet. Measure the contours, organise protective underlay and plan how the liner will reach the installation area.\u003c\/p\u003e\n      \u003cul class=\"eot-aplus__hero-specs\"\u003e\n\u003cli\u003e8m × 10m sheet\u003c\/li\u003e\n\u003cli\u003e1100gsm EPDM rubber\u003c\/li\u003e\n\u003cli\u003e0.9mm thickness\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003cp\u003eOne liner supplied. Underlay and installation accessories sold separately.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200\" alt=\"Illustrative garden pond with black flexible liner following curved planting shelves\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\u003cfigcaption\u003eIllustrative installation, not a size guide. Pond, plants, stones and accessories are not included.\u003c\/figcaption\u003e\u003c\/figure\u003e\n  \u003c\/section\u003e\n  \u003cdiv class=\"eot-aplus__facts\" aria-label=\"Key liner specifications\"\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e8m × 10m\u003c\/strong\u003e\u003cspan\u003eFlat sheet size\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e80m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e1100gsm\u003c\/strong\u003e\u003cspan\u003eMaterial weight\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e0.9mm\u003c\/strong\u003e\u003cspan\u003e900-micron thickness\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003csection class=\"eot-aplus__material\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200\" alt=\"Folded black EPDM rubber liner showing the flexible material\" width=\"1200\" height=\"1200\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003eRubber that works with your pond's contours\u003c\/h3\u003e\n      \u003cp\u003eEPDM is a flexible synthetic rubber. It can follow rounded edges, slopes and planting shelves, giving you more freedom over the shape of your pond.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMade for outdoor pond use.\u003c\/strong\u003e UV and ozone resistant for outdoor pond use.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eA clear material specification.\u003c\/strong\u003e 1100gsm material weight and a thickness of 900 microns (0.9mm).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eJoined-sheet construction.\u003c\/strong\u003e This liner is made from securely joined sheets and contains seams. It is not a seamless cut.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__dimensions\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003e80m² of liner. Plan the whole installation.\u003c\/h3\u003e\n      \u003cp\u003eThe 8m × 10m sheet gives you a broad rectangular starting point. Some of that sheet must cover the pond sides, shelves and edging, so its flat area is not the finished water surface. The flat sheet area is \u003cstrong\u003enot the finished pond footprint\u003c\/strong\u003e.\u003c\/p\u003e\n      \u003cp\u003eAllow for the deepest part of your pond and an overlap around every edge. Use the sizing calculator below before choosing your liner.\u003c\/p\u003e\n      \u003cp\u003eFor irregular ponds, shelves or waterfalls, measure along the actual contours as well. \u003ca href=\"#EotPondSizing\"\u003eUse the calculator below to find your liner size.\u003c\/a\u003e\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"eot-aplus__diagram\" role=\"img\" aria-label=\"Rectangular flat liner sheet, 10 metres long and 8 metres wide. Thickness 0.9 millimetres. Not to scale.\"\u003e\n      \u003cspan class=\"eot-aplus__length\"\u003e10m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__sheet\" style=\"width:100%;aspect-ratio:10\/8;min-height:9rem\"\u003e\n\u003cstrong\u003e80m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cspan class=\"eot-aplus__width\"\u003e8m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__thickness\"\u003e\n\u003cspan\u003e\u003c\/span\u003e0.9mm thick · not to scale\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n\u003c!-- eot:pond-sizing --\u003e\n\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__preparation\"\u003e\n    \u003cdiv class=\"eot-aplus__section-heading\"\u003e\n\u003ch3\u003ePrepare the pond. Protect the liner.\u003c\/h3\u003e\n\u003cp\u003eA careful start gives the rubber a smooth, supported surface to follow.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200\" alt=\"Illustrative preparation scene showing black liner laid over protective underlay\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 1100px, 100vw\"\u003e\u003cfigcaption\u003eIllustrative preparation scene. Protective underlay is sold separately.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003cdiv class=\"eot-aplus__steps\"\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eClear and prepare\u003c\/h4\u003e\n\u003cp\u003eRemove sharp stones, roots and debris. Shape the pond and shelves, then use suitable protective underlay between the ground and liner.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eUnfold gently\u003c\/h4\u003e\n\u003cp\u003eAfter cold transport, leave the liner at room temperature, around 20°C, for a few hours. Separate the folded layers slowly from a corner or edge.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003ePlan the handling\u003c\/h4\u003e\n\u003cp\u003ePlan access and arrange suitable help before moving this large sheet into place. Do not pull sharply or use knives to separate layers.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__included\"\u003e\n    \u003ch3\u003eWhat arrives with your order?\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eOne 8m × 10m black EPDM pond liner.\u003c\/strong\u003e Protective underlay, adhesives, seam tape, tools and decorative edging are not included. See the selected accessories above for compatible preparation materials and check their coverage before ordering.\u003c\/p\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__questions\"\u003e\n    \u003ch3\u003eBefore you start\u003c\/h3\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs 8m × 10m the size of the finished pond?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. It is the flat sheet size. Allow for pond depth, shelves and an overlap at every edge. Use the calculator above as a starting estimate and check the actual contours of your design.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs protective underlay included?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. Underlay is sold separately. It helps separate the liner from sharp objects and ground irregularities; it does not replace careful ground preparation.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eDoes this liner contain seams?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eYes. The supplied liner is made from securely joined sheets. Joined-sheet construction is part of this product's specification.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhy might the folded layers stick together?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eFolded layers can stick together after storage under pressure. Allow the liner to reach room temperature and separate them slowly and evenly. Do not use sharp tools or force the layers apart.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhat is the white or matt residue on the rubber?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eManufacturing processing aids can leave a white or matt residue where folded layers touched. This does not affect watertightness, strength or durability. Wipe it away with a soft, damp cloth. Contact us if the liner arrives with tears, punctures, holes or cracks.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n","brand":"Costwise","offers":[{"title":"Default Title","offer_id":55808310673795,"sku":"EPDM900-8X10-001","price":603.79,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-pond-liner-8x10-labelled.jpg?v=1792521815"},{"product_id":"10m-x-10m-epdm-rubber-pond-liner-1100-gsm","title":"10m x 10m EPDM Rubber Pond Liner, 1100 GSM","description":"\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__hero\"\u003e\n    \u003cdiv class=\"eot-aplus__hero-copy\"\u003e\n      \u003ch3\u003eA wide square sheet for your pond project\u003c\/h3\u003e\n      \u003cp\u003eStart a larger pond project with a 10m × 10m black EPDM rubber sheet. Careful measuring, ground preparation and safe handling are essential before installation.\u003c\/p\u003e\n      \u003cul class=\"eot-aplus__hero-specs\"\u003e\n\u003cli\u003e10m × 10m sheet\u003c\/li\u003e\n\u003cli\u003e1100gsm EPDM rubber\u003c\/li\u003e\n\u003cli\u003e0.9mm thickness\u003c\/li\u003e\n\u003c\/ul\u003e\n      \u003cp\u003eOne liner supplied. Underlay and installation accessories sold separately.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200\" alt=\"Illustrative garden pond with black flexible liner following curved planting shelves\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-garden-pond-illustration.jpg?v=1792512964\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\u003cfigcaption\u003eIllustrative installation, not a size guide. Pond, plants, stones and accessories are not included.\u003c\/figcaption\u003e\u003c\/figure\u003e\n  \u003c\/section\u003e\n  \u003cdiv class=\"eot-aplus__facts\" aria-label=\"Key liner specifications\"\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e10m × 10m\u003c\/strong\u003e\u003cspan\u003eFlat sheet size\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e100m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e1100gsm\u003c\/strong\u003e\u003cspan\u003eMaterial weight\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cstrong\u003e0.9mm\u003c\/strong\u003e\u003cspan\u003e900-micron thickness\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003csection class=\"eot-aplus__material\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200\" alt=\"Folded black EPDM rubber liner showing the flexible material\" width=\"1200\" height=\"1200\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/EPDM900_2_02488a60-c996-4617-b9c3-d2e31664db3a.jpg?v=1755033299\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 550px, (min-width: 750px) 50vw, 100vw\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003eRubber that works with your pond's contours\u003c\/h3\u003e\n      \u003cp\u003eEPDM is a flexible synthetic rubber. It can follow rounded edges, slopes and planting shelves, giving you more freedom over the shape of your pond.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMade for outdoor pond use.\u003c\/strong\u003e UV and ozone resistant for outdoor pond use.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eA clear material specification.\u003c\/strong\u003e 1100gsm material weight and a thickness of 900 microns (0.9mm).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eJoined-sheet construction.\u003c\/strong\u003e This liner is made from securely joined sheets and contains seams. It is not a seamless cut.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__dimensions\"\u003e\n    \u003cdiv class=\"eot-aplus__copy\"\u003e\n      \u003ch3\u003eA 100m² sheet needs a complete plan.\u003c\/h3\u003e\n      \u003cp\u003eThe 10m × 10m measurement is the flat sheet size. Check the deepest point, every shelf and the edge allowance in both directions, then plan access and suitable help for moving the liner. The flat sheet area is \u003cstrong\u003enot the finished pond footprint\u003c\/strong\u003e.\u003c\/p\u003e\n      \u003cp\u003eAllow for the deepest part of your pond and an overlap around every edge. Use the sizing calculator below before choosing your liner.\u003c\/p\u003e\n      \u003cp\u003eFor irregular ponds, shelves or waterfalls, measure along the actual contours as well. \u003ca href=\"#EotPondSizing\"\u003eUse the calculator below to find your liner size.\u003c\/a\u003e\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"eot-aplus__diagram\" role=\"img\" aria-label=\"Rectangular flat liner sheet, 10 metres long and 10 metres wide. Thickness 0.9 millimetres. Not to scale.\"\u003e\n      \u003cspan class=\"eot-aplus__length\"\u003e10m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__sheet\" style=\"width:100%;aspect-ratio:10\/10;min-height:9rem\"\u003e\n\u003cstrong\u003e100m²\u003c\/strong\u003e\u003cspan\u003eFlat sheet area\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cspan class=\"eot-aplus__width\"\u003e10m\u003c\/span\u003e\n      \u003cdiv class=\"eot-aplus__thickness\"\u003e\n\u003cspan\u003e\u003c\/span\u003e0.9mm thick · not to scale\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n\u003c!-- eot:pond-sizing --\u003e\n\u003cdiv class=\"eot-aplus\"\u003e\n  \u003csection class=\"eot-aplus__preparation\"\u003e\n    \u003cdiv class=\"eot-aplus__section-heading\"\u003e\n\u003ch3\u003ePrepare the pond. Protect the liner.\u003c\/h3\u003e\n\u003cp\u003eA careful start gives the rubber a smooth, supported surface to follow.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200\" alt=\"Illustrative preparation scene showing black liner laid over protective underlay\" width=\"1536\" height=\"1024\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=400 400w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=600 600w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=900 900w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1200 1200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-underlay-preparation-illustration.jpg?v=1792513017\u0026amp;width=1536 1536w\" sizes=\"(min-width: 1200px) 1100px, 100vw\"\u003e\u003cfigcaption\u003eIllustrative preparation scene. Protective underlay is sold separately.\u003c\/figcaption\u003e\u003c\/figure\u003e\n    \u003cdiv class=\"eot-aplus__steps\"\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eClear and prepare\u003c\/h4\u003e\n\u003cp\u003eRemove sharp stones, roots and debris. Shape the pond and shelves, then use suitable protective underlay between the ground and liner.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003eUnfold gently\u003c\/h4\u003e\n\u003cp\u003eAfter cold transport, leave the liner at room temperature, around 20°C, for a few hours. Separate the folded layers slowly from a corner or edge.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003ch4\u003ePlan the handling\u003c\/h4\u003e\n\u003cp\u003ePlan access and arrange suitable help before moving this large sheet into place. Do not pull sharply or use knives to separate layers.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__included\"\u003e\n    \u003ch3\u003eWhat arrives with your order?\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eOne 10m × 10m black EPDM pond liner.\u003c\/strong\u003e Protective underlay, adhesives, seam tape, tools and decorative edging are not included. See the selected accessories above for compatible preparation materials and check their coverage before ordering.\u003c\/p\u003e\n  \u003c\/section\u003e\n  \u003csection class=\"eot-aplus__questions\"\u003e\n    \u003ch3\u003eBefore you start\u003c\/h3\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs 10m × 10m the size of the finished pond?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. It is the flat sheet size. Allow for pond depth, shelves and an overlap at every edge. Use the calculator above as a starting estimate and check the actual contours of your design.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eIs protective underlay included?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo. Underlay is sold separately. It helps separate the liner from sharp objects and ground irregularities; it does not replace careful ground preparation.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eDoes this liner contain seams?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eYes. The supplied liner is made from securely joined sheets. Joined-sheet construction is part of this product's specification.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhy might the folded layers stick together?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eFolded layers can stick together after storage under pressure. Allow the liner to reach room temperature and separate them slowly and evenly. Do not use sharp tools or force the layers apart.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n    \u003cdetails class=\"eot-faq\"\u003e\u003csummary\u003eWhat is the white or matt residue on the rubber?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eManufacturing processing aids can leave a white or matt residue where folded layers touched. This does not affect watertightness, strength or durability. Wipe it away with a soft, damp cloth. Contact us if the liner arrives with tears, punctures, holes or cracks.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n","brand":"Costwise","offers":[{"title":"Default Title","offer_id":55808311230851,"sku":"EPDM900-10X10-001","price":704.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/files\/epdm-pond-liner-10x10-labelled.jpg?v=1792521877"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/3271\/9576\/collections\/epdm-garden-pond-illustration.jpg?v=1792523525","url":"https:\/\/eotrader.co.uk\/collections\/1100gsm-epdm-black-rubber-pond-liners.oembed","provider":"Essential Online Traders","version":"1.0","type":"link"}