Description
The heavy duty liner for the pond you dig
Flexible black EPDM rubber at 1100gsm and 0.9mm thick. It stretches into the curves, shelves and waterfalls you dig, is UV protected and is safe for fish.
1100gsm EPDM: the gold standard pond liner
EPDM synthetic rubber weighs 1.1kg per square metre and is 0.9mm thick, three times our 450gsm PVC. Rubber stretches as well as bends, so it settles into curves, shelves and waterfall steps, and it is UV protected for a long life outdoors.
| Material | EPDM Rubber |
|---|---|
| Colour | Black |
| GSM | 1100gsm |
| Thickness | 900 microns / 0.9mm |
| UV protection | Yes, UV protected |
| Safe for fish | Yes, and for other pond life |
| Construction | Securely joined sheets; contains seams |
| Size options | 11 sizes, from 1m x 1m to 10m x 10m |
| Supplied | One liner, folded and bagged |
Which pond liner is right for you?
| 200gsm PE | 450gsm PVC | 1100gsm EPDM (this liner) | |
|---|---|---|---|
| Material | Polyethylene, black and grey | PVC, black | EPDM synthetic rubber, black |
| Weight per m² | 200g | 450g | 1100g |
| Sizes | 17, from 1m x 1m to 10m x 10m | 14, from 1m x 1m to 8m x 8m | 11, from 1m x 1m to 10m x 10m |
| Underlay | Sold separately or as a kit | An option on every size | An option on every size |
| Price per m², 3m x 3m | £1.21 | £2.65 | £6.99 |
| Choose it for | The lowest cost per square metre | A tougher sheet at a mid price | Stretching over deep shelves and tight curves |
Prices per m² are for a 3m x 3m liner on its own, at today's prices. Prefer a natural look? Our pebble print PVC liners are the same 450gsm sheet with a printed pebble face.
What each size builds
| Liner sheet | Pond it builds | Good for | With underlay option |
|---|---|---|---|
| 1m x 1m | 0.4m x 0.4m, 15cm deep | Small patio water feature or container pond | One 1m x 1m sheet |
| 2.5m x 2.5m | 1m x 1m, 45cm deep | Small wildlife pond | One 3m x 3m sheet |
| 2.5m x 3m | 1m x 1.5m, 45cm deep | Small wildlife or patio pond | One 3m x 5m sheet |
| 3m x 3m | 1.5m x 1.5m, 45cm deep | Small garden pond with a planting shelf | One 3m x 3m sheet |
| 3m x 4m | 1.5m x 2.5m, 45cm deep | Small garden pond with a planting shelf | One 3m x 5m sheet |
| 4m x 5m | 2.2m x 3.2m, 60cm deep | Medium garden pond with shelves | Two 3m x 5m sheets |
| 2m x 10m | 1m x 9m, 20cm deep | Wide stream or long formal rill | One 3m x 10m sheet |
| 5m x 6m | 3.2m x 4.2m, 60cm deep | Larger pond with marginal shelves | Two 3m x 5m sheets |
| 6m x 6m | 4.2m x 4.2m, 60cm deep | Large garden or fish pond | Four 3m x 3m sheets |
| 8m x 10m | 5.6m x 7.6m, 90cm deep | Large, deep fish or koi pond | Three 3m x 10m sheets |
| 10m x 10m | 7.6m x 7.6m, 90cm deep | Very large wildlife, fish or koi pond | Four 3m x 10m sheets |
Approximate ponds, keeping 30cm of liner spare at every edge (15cm on the 1m x 1m). Deeper ponds come out smaller: every extra 10cm of depth takes 20cm off the length and width.
What size pond liner do I need?
Enter your pond dimensions in metres to find the liner size you need.
Sheet length = pond length + 2 x depth + 2 x edge allowance. Width uses the same sum. Not to scale.
Made to line any garden pond
From hole to pond
-
Dig and line with underlayShape the hole with shelves, then always lay underlay first to protect the liner from stones and roots.
-
Ease in the linerUnfold it beside the hole, ease it in with plenty spare round the rim and let the rubber settle into the shelves.
-
Fill, then finish the edgeWeight the loose edge and fill slowly. Once the liner has settled, trim it and cover the rim with stones, slabs or turf.
Step by step, with photos: our EPDM pond liner installation guide.
Frequently asked questions
What's included?
With underlay: one black EPDM pond liner in the size you choose and the 50gsm fabric underlay to suit it. Liner only: the liner on its own, for when you already have underlay.
Do I need underlay?
Yes. Always lay a pond liner on underlay, never straight on soil, to cushion it against stones and roots. Choose the With underlay option, or see our pond liner underlay.
Is the sheet size the finished pond size?
No. Each size is the flat sheet size. The sheet also covers the pond's depth, shelves and edging, so the finished pond is smaller. Use the calculator above for your own pond.
Is it safe for fish?
Yes. EPDM rubber is safe for fish and other pond life.
Will it stand up to sunlight?
Yes. The rubber is UV protected, one reason EPDM is the gold standard for garden ponds.
Does the liner have joins?
Yes. Panels are heat welded together at the factory, so it arrives as one sheet. Use one sheet per pond: joining two yourself needs seam tape and adhesive, which we do not sell.
Why do the folded layers stick together?
Packed rubber can stick to itself. Leave it at room temperature, around 20°C, for a few hours, then separate the layers slowly from a corner. Never pull sharply or use a knife.
What is the white mark on the rubber?
Where folded layers touched, processing aids can leave a white or matt film. It does not affect the liner and wipes off with a damp cloth. If it arrives torn or punctured, contact us.
Product information & technical details
- SKU
- EPDM900-2.5X2.5-001+
- Product type
- Size
- 2.5m x 2.5m
- Length
- 2.5m
- Width
- 2.5m
- GSM
- 1100gsm
- Weight
- About 7.3kg with underlay
- Colour
- Black
- Material
- EPDM Rubber
- Thickness
- 900 microns / 0.9mm
- UV protection
- Yes, UV protected
- Safe for fish
- Yes, and for other pond life
- Construction
- Securely joined sheets; contains seams
- Size options
- 11 sizes, from 1m x 1m to 10m x 10m
- Supplied
- One liner, folded and bagged
- Flat sheet area
- 6.25m²
- Underlay
- Included, one 3m x 3m sheet of 50gsm fabric underlay
All delivery times are estimates and not guaranteed. Orders placed before 1 pm, Monday to Friday (excluding bank holidays), will be dispatched the same day, while orders placed after 1 pm will be dispatched by the end of the next working day.
If an invalid postcode or address is provided, the order will be cancelled without further notice, as we are unable to modify addresses or print labels for invalid postcodes.
Our standard delivery option is Royal Mail Tracked 48, which typically takes 3–5 business days. If you need your order more quickly, Expedited delivery via Royal Mail Tracked 24 is available, offering a 1–2 business day service.
Large or bulky items may be sent via courier at our discretion and are usually dispatched for next-day delivery. Please note that we only ship to mainland UK addresses; delivery to non-mainland locations, including the Highlands & Islands, may not be available for large or heavy items. If your address falls into one of these areas and you wish to purchase such items, please contact us with your postcode and order details before placing your order. If we cannot ship to you, you are welcome to arrange your own courier for collection.
All products, unless otherwise stated, come with a standard manufacturer warranty against faulty workmanship.
If your product fails within six months of delivery, please contact us with your order reference number, a description of the issue, and clear images illustrating the fault.
Should your item require a return for further investigation, it is your responsibility to arrange and cover postage back to us.
If we are unable to repair the fault, we may offer either a replacement or a full refund.
In cases where the item is inspected and found not to be faulty, or where damage is determined not to be due to manufacturing defects, you will not be entitled to a refund or replacement. We will then either return the item to you via standard post or dispose of it at your request.
You may return any order within 14 days of delivery. As soon as you receive your items, please inspect them carefully, taking reasonable care to keep both the product and its packaging clean and undamaged. If you discover an error or defect after 14 days, we reserve the right to decline your return. If your product fails or breaks after this 14-day time window then your order may be eligible for a warranty claim, please see our warranty information for more details.
To initiate a return, please contact us via our contact form to obtain a return authorisation and the correct returns address (different from the address on your invoice). This can also be done through your 'recent orders' page on your account if you are registered with Shop. Returns sent without prior authorisation will be discarded.
Returned items must be in the same condition in which you received them: unworn or unused, with tags attached and in their original packaging. You must include either a copy of your invoice or a slip with your order reference number inside the parcel. Please be sure not to obscure your return reference number on the label.
If you refuse delivery or reject the parcel without prior notice, we will inspect the returned package and issue a refund upon receipt. Although there is no restocking fee, we will deduct the cost of the return postage label (£3.35) from your refund.
If the returned item or its packaging shows signs of use, damage, or staining, we may deduct up to 50% of the order value, or refuse the return entirely, depending on its condition. Examples include damaged tags, stained, modified or damaged packaging, or missing components.
For faulty, incorrect, or damaged items, please contact us before sending anything back so we can attempt to resolve the issue directly. If we agree that a return is necessary due to our error, we will provide you with a pre-paid return label.
Products that have been modified or damaged through customer action are not eligible for return. This includes, but is not limited to, items that have been cut, trimmed or otherwise altered (such as a tarpaulin or pond liner resized to your specifications), or any product showing damage beyond normal inspection handling.
All delivery times are estimates and not guaranteed. Orders placed before 1 pm, Monday to Friday (excluding bank holidays), will be dispatched the same day, while orders placed after 1 pm will be dispatched by the end of the next working day.
If an invalid postcode or address is provided, the order will be cancelled without further notice, as we are unable to modify addresses or print labels for invalid postcodes.
Our standard delivery option is Royal Mail Tracked 48, which typically takes 3–5 business days. If you need your order more quickly, Expedited delivery via Royal Mail Tracked 24 is available, offering a 1–2 business day service.
Large or bulky items may be sent via courier at our discretion and are usually dispatched for next-day delivery. Please note that we only ship to mainland UK addresses; delivery to non-mainland locations, including the Highlands & Islands, may not be available for large or heavy items. If your address falls into one of these areas and you wish to purchase such items, please contact us with your postcode and order details before placing your order. If we cannot ship to you, you are welcome to arrange your own courier for collection.
All products, unless otherwise stated, come with a standard manufacturer warranty against faulty workmanship.
If your product fails within six months of delivery, please contact us with your order reference number, a description of the issue, and clear images illustrating the fault.
Should your item require a return for further investigation, it is your responsibility to arrange and cover postage back to us.
If we are unable to repair the fault, we may offer either a replacement or a full refund.
In cases where the item is inspected and found not to be faulty, or where damage is determined not to be due to manufacturing defects, you will not be entitled to a refund or replacement. We will then either return the item to you via standard post or dispose of it at your request.
You may return any order within 14 days of delivery. As soon as you receive your items, please inspect them carefully, taking reasonable care to keep both the product and its packaging clean and undamaged. If you discover an error or defect after 14 days, we reserve the right to decline your return. If your product fails or breaks after this 14-day time window then your order may be eligible for a warranty claim, please see our warranty information for more details.
To initiate a return, please contact us via our contact form to obtain a return authorisation and the correct returns address (different from the address on your invoice). This can also be done through your 'recent orders' page on your account if you are registered with Shop. Returns sent without prior authorisation will be discarded.
Returned items must be in the same condition in which you received them: unworn or unused, with tags attached and in their original packaging. You must include either a copy of your invoice or a slip with your order reference number inside the parcel. Please be sure not to obscure your return reference number on the label.
If you refuse delivery or reject the parcel without prior notice, we will inspect the returned package and issue a refund upon receipt. Although there is no restocking fee, we will deduct the cost of the return postage label (£3.35) from your refund.
If the returned item or its packaging shows signs of use, damage, or staining, we may deduct up to 50% of the order value, or refuse the return entirely, depending on its condition. Examples include damaged tags, stained, modified or damaged packaging, or missing components.
For faulty, incorrect, or damaged items, please contact us before sending anything back so we can attempt to resolve the issue directly. If we agree that a return is necessary due to our error, we will provide you with a pre-paid return label.
Products that have been modified or damaged through customer action are not eligible for return. This includes, but is not limited to, items that have been cut, trimmed or otherwise altered (such as a tarpaulin or pond liner resized to your specifications), or any product showing damage beyond normal inspection handling.