Pond Liner & Underlay Pond Liner & Underlay We carry a full line of flexible 45 mil EPDM pond liner and installation products to create the perfect pond or water feature. From large commercial ponds to small water gardens you'll find the perfect installation and repair products here.
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Pond Liner & Underlay

Pond Liner & Underlay
We carry a full line of flexible 45 mil EPDM pond liner and installation products to create the perfect pond or water feature. From large commercial ponds to small water gardens you'll find the perfect installation and repair products here.
Firestone EPDM Liner
Firestone PondGard EPDM liner is the material of choice for various waterproof lining applications. Specially formulated to be fish and plant safe, they can easily be shaped to fit the unique contours of any size pond or complex landscape feature.
Carlisle EPDM Liner
Carlisle's fish-friendly AquaTough EPDM pond liners combine design flexibility, long-term durability and easy installation, making them an ideal choice for a variety of waterscape applications.
Pond Underlayment
Protect your liner from rocks, roots and other sharp objects with a fabric underlayment. Can also be used on top of liner to protect from punctures when adding gravel and stone inside the pond.
Seaming & Repair Materials
Whether seaming or repairing liner you'll find all the necessary components here. Choose from seaming and repair tapes, patch kits, pipe-boots, etc.
Liquid Rubber Products
Multi-purpose coating that cures into a waterproof membrane. Available in a variety of colors. Seaming tapes are also available for seal joints and tears.
All Liners (EPDM) & Underlays
We carry the full line of flexible Firestone 45 mil Pond Liner and installation products to create the perfect koi pond or water feature. If you are looking for a rugged liner at a great price our site is the place to be. From large commercial ponds to small water gardens we have the right product for you. Protect your pond with a long lasting, fish safe and fish friendly Firestone Liner.

Our Most Popular Pond Liner & Underlay

Firestone PondGard Pond Liner

Insist on the Best, Insist on Firestone 45 mil EPDM Pond Liner!

This Pond Liner is formulated for water garden application and is consistently produced to the strict specifications of Firestone Incorporated.

  • 45 mil, ultraviolet stabilized flexible EPDM rubber pond liner
  • Fish and Plant Friendly & Easy to Install
  • Lifetime Warranty Click here for more information
  • The most widely used material in water gardening.

Firestone PondGard Pond Liner

Item Liner Size Pond Size 24" Deep Gallons of Water Weight Ships Via
8' x 10'
2 x 4
120
29 lbs
Ground
Out of Stock
10' x 10'
4 x 4
240
29 lbs
Ground
10' x 15'
4 x 9
540
44 lbs
Ground
10' x 20'
4 x 14
840
58 lbs
Ground
10' x 25'
4 x 19
1140
73 lbs
Ground
10' x 30'
4 x 24
1440
90 lbs
Ground
10' x 35'
4 x 29
1740
139 lbs
Ground
10' x 40'
4 x 34
2040
124 lbs
Ground
15 x 15
9 x 9
1215
66 lbs
Ground
15' x 20'
9 x 14
1890
87 lbs
Ground
15' x 25'
9 x 19
2565
109 lbs
Ground
15' x 30'
9 x 24
3240
142 lbs
-
20' x 20'
14 x 14
2940
116 lbs
Ground
20' x 25'
14 x 19
3990
145 lbs
Ground
Pond Underlay
The Best Protection For Your Pond Liner

Don't Forget Liner Underlay. Underlay is a flexible, soft fabric placed under the pond liner for protection against punctures and friction from rocks.

  • 4.5 oz

*The roll of underlay listed below as will ship via UPS Freight.

Pond Underlay

Item Underlay Size Square Feet
6' x 100'
600
Pond Underlay 10' x 15'
$40.00 | 100 Points
10' x 15'
150
Pond Underlay 15' x 15'
$54.75 | 137 Points
15' x 15'
225
Pond Underlay 15' x 20'
$68.80 | 172 Points
20' x 15'
300
Pond Underlay 15' x 25'
$85.00 | 213 Points
25' x 15'
375
Pond Underlay 15' x 30'
$99.00 | 248 Points
30' x 15'
450
Pond Underlay 15' x 40'
$129.60 | 324 Points
40' x 15'
600
12' x 12'
144
12' x 100'
1200
Pond Underlay 15' x 50'
$159.50 | 399 Points
50' x 15'
750
15' x 360' Roll*
5400
AquaTough Pond Liner - Mini Rolls

Carlisle™s 45 mil Fish-Friendly EPDM AquaTough Rubber Pond Liners combine design flexibility, long-term durability and easy installation, making them an ideal choice for a variety of waterscape applications, including:

  • Koi ponds
  • Water gardens
  • Pondless water features
  • Streams
  • Waterfalls
  • Decorative ponds
  • Fountains
  • Consistent J-Tear Protection
  • Bubble Wrap Protective Roll Packaging
  • LIFETIME MANUFACTURER'S WARRANTY

Large Pond Liners Shipping via Common Carrier

Pond liner listed as 'common carrier' will ship via UPS Freight, one of the fastest and most reliable common carriers in the industry. The shipping charge will be based upon the weight of the liner and your delivery zip code ensuring the best possible delivered price.

For a shipping quote click the 'add to cart' button next to the liner size of your choice and then enter your state and delivery zip code to receive an immediate, real-time shipping quote.

During checkout, you will choose either residential or commercial as the delivery location. Residential deliveries will receive a call from the carrier before delivery. Commercial deliveries will take place without a call before delivery leading to a quicker delivery, these deliveries must be shipped to a commercial property. If you operate your business from your home, this is not considered a commercial delivery. Please note that you as the buyer are responsible for unloading the delivery from the truck. The carrier does not have equipment to remove the liner from the truck. A 'lift gate' is available for an additional fee, please call customer service at 866-819-7663 before ordering for a quote on this option.

AquaTough Pond Liner - Mini Rolls

Item Liner Size Pond Size 24" Deep Gallons of Water Weight
20' x 25'
14 x 19
3990
145 lbs
20' x 30'
14 x 24
5040
174 lbs
25' x 25'
19 x 19
5415
182 lbs
25' x 30'
19 x 24
6840
218 lbs
30' x 30'
24 x 24
8640
261 lbs
Liquid Rubber Waterproof Sealant Original Black
    Flexible Heavy-Duty Coating
  • Multi-Purpose coating that cures into a waterproof membrane
  • Used for roofs, RV's, gutters, planters, foundations, ponds....
  • Excellent adhesion, chemical and UV resistance
  • Flexible and resistant to freeze/thaw cycles
  • Water based " No harmful solvents or VOC's
  • Colored version sticks great to EPDM
    Steps
  • Ensure a clean, dry surface
  • Bridge any joints, seams, venting, cracks... with Seam Tape
  • Build up your coats to achieve required thickness.
    Tips
  • Avoid hot, direct sun when applying.
  • Product stays soft, flexible and may have some tackiness, not meant as a walking surface.
  • You can re-coat when it's dry to touch and make sure there is no uncured material underneath.
  • Apply material until you use up the required amount.
  • For larger areas, pour out and spread around with a roller or squeegee.
  • If corrosion is present, use MetalSafe Sealant.

Liquid Rubber Waterproof Sealant Original Black

Item Typical Coverage
-
-
Up To 20 sq./ft.
-
Out of Stock
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