Pond Liners & Underlayment (61 Products)

Pond liners are the perfect way to create custom water features, ponds, and water gardens. With many liner options available, you'll be sure to find the liner that best meets your needs. Firestone EPDM PondGard liner exhibits a high tensile strength and an outstanding resistance to puncture. It's offered in both 45 mil and 60 mil thicknesses and will retain its high flexibility, even in cold weather. Premium PVC Pond Liner is offered in a high-tech, lightweight design that resists both tears and punctures. Its easy maneuverability and 20 mil thickness is perfect for the home installer. Both EPDM and PVC liners are fish safe and carry 20 year warranties.

Smaller liner (under 150 lbs) can be shipped via UPS or FedEx, while larger liner must be shipped via Truck. For Truck delivery rates, add your liner to your shopping cart, enter your address information in the first step of checkout and you will be given Truck S/H pricing. If you have any questions, please do not hesitate to call us toll free at 877-562-1818.

To calculate required liner size, determine the rectangular size of your pond. If your pond is irregular, determine the size rectangle in which your pond will fit. The liner size your pond will require can be calculated as follows: the planned width plus twice the depth and 2 feet for the edges and the length plus twice the depth and, again, 2 feet for the edges. For example, if you wish to build a 10' x 15' pond that is 4' in depth, you would need a 20' x 25' liner (10 + 4 + 4 + 2 = 20' wide; 15 + 4 + 4 + 2 = 25' long).
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Top Seller
Firestone PondGard EPDM Pond Liner, 15'x20', 45 mil
SRP: $499.99
Now: $359.99
In Stock


Firestone PondGard EPDM Pond Liner, 20'x20', 45 mil
SRP: $842.99
Now: $476.99
In Stock


Top Seller
Firestone Lap Sealant HS, Pack of 6 Tubes
SRP: $145.99
Now: $104.99
In Stock


Firestone PondGard EPDM Pond Liner, 15'x25', 45 mil
SRP: $789.99
Now: $470.49
Temporarily out of stock. Available soon.
Top Seller
Elevate Lap Sealant HS
SRP: $24.49
Now: $19.99
In Stock


Firestone PondGard EPDM Pond Liner, 10'x20', 45 mil
SRP: $419.99
Now: $249.99
In Stock


Firestone PondGard EPDM Pond Liner, 10'x25', 45 mil
SRP: $525.99
Now: $349.99
Temporarily out of stock. Available soon.
Elevate Lap Sealant HS, Bulk Buy of 28 Tubes
SRP: $685.79
Now: $428.99
In Stock


Firestone Lap Sealant HS, Bulk Buy of 28 Tubes
SRP: $677.99
Now: $428.99
In Stock


Firestone PondGard EPDM Pond Liner, 20'x22.5', 45 mil
SRP: $982.99
Now: $549.99
Temporarily out of stock. Available soon.
Elevate Lap Sealant HS, Pack of 6 Tubes
SRP: $146.99
Now: $105.99
In Stock


Elevate EPDM Liner Repair Kit
SRP: $38.49
Now: $34.99
Temporarily out of stock. Available soon.
Firestone QuickSeam Splice Tape, 3" x 25' Rolls, Pack of 2
SRP: $113.99
Now: $78.99
In Stock


Firestone QuickSeam Cover Strip, 6" x 100' Roll
SRP: $784.99
Sale:$407.99
In Stock , 1 available at this price!


Firestone QuickSeam Tape Kit
SRP: $142.99
Now: $99.99
Temporarily out of stock. Available soon.
Firestone QuickSeam Cover Strip, 6" x 25' Roll
SRP: $189.99
Now: $137.99
In Stock


Firestone PondGard EPDM Pond Liner, 10'x10', 45 mil
SRP: $219.99
Now: $163.99
Low Stock


Firestone Lap Sealant HS
SRP: $24.99
Now: $21.99
In Stock


Firestone EPDM Liner Repair Kit
SRP: $36.99
Now: $27.99
In Stock


Firestone Silicone Roller
SRP: $72.99
Now: $54.99
Temporarily out of stock. Available soon.
Firestone PondGard EPDM Pond Liner, 5'x10', 45 mil
SRP: $109.99
Now: $76.99
Low Stock


Firestone PondGard EPDM Pond Liner, 5'x15', 45 mil
SRP: $159.99
Now: $119.99
Low Stock


Firestone QuickSeam Splice Tape, 3" x 25' Roll
SRP: $56.99
Sale:$40.99
In Stock , 124 available at this price!


Elevate EPDM PondGard Pond Liner, 15' x 25', 45 mil
SRP: $749.49
Now: $559.99
In Stock


Elevate EPDM PondGard Pond Liner, 15' x 15', 45 mil
SRP: $449.99
Now: $339.99
In Stock


Firestone Quick Scrubber Kit
SRP: $67.99
Now: $50.99
Temporarily out of stock. Available soon.
Elevate Quick Scrubber Kit
SRP: $55.99
Now: $44.99
In Stock


Elevate Silicone Roller
SRP: $71.99
Now: $55.99
In Stock


Elevate QuickSeam Splice Tape, 3" x 25' Roll
Now: $57.99
Temporarily out of stock. Available soon.
Elevate EPDM PondGard Pond Liner, 5' x 10', 45 mil
SRP: $99.99
Now: $92.99
In Stock


Elevate QuickSeam Splice Tape, 3" x 25' Rolls, Pack of 2
SRP: $114.99
Now: $109.99
Temporarily out of stock. Available soon.
Elevate EPDM PondGard Pond Liner, 5' x 15', 45 mil
SRP: $149.99
Now: $132.99
In Stock


Elevate QuickSeam Cover Strip, 6" x 25' Roll
SRP: $191.99
Now: $139.99
Temporarily out of stock. Available soon.
Elevate EPDM PondGard Pond Liner, 10' x 10', 45 mil
SRP: $199.99
Now: $174.99
In Stock


Elevate EPDM PondGard Pond Liner, 10' x 20', 45 mil
SRP: $399.99
Now: $314.99
In Stock


Elevate EPDM PondGard Pond Liner, 10' x 25', 45 mil
SRP: $504.99
Now: $379.99
In Stock


Elevate EPDM PondGard Pond Liner, 15' x 20', 45 mil
SRP: $599.99
Now: $449.99
In Stock


Elevate QuickSeam Cover Strip, 6" x 100' Roll
SRP: $767.49
Now: $499.99
Temporarily out of stock. Available soon.
Firestone QuickSeam Splice Tape, 3" x 25' Rolls, Lot of 16
SRP: $911.99
Now: $509.99
In Stock


Elevate EPDM PondGard Pond Liner, 20' x 22.5', 45 mil
SRP: $899.99
Now: $549.99
In Stock


Elevate EPDM PondGard Pond Liner, 20' x 20', 45 mil
SRP: $799.99
Now: $599.99
In Stock


Elevate EPDM PondGard Pond Liner, 20' x 25', 45 mil
SRP: $999.99
Now: $739.99
Temporarily out of stock. Available soon.
Elevate EPDM PondGard Pond Liner, 10' x 100', 45 mil
SRP: $2,554.99
Now: $1,631.99
Temporarily out of stock. Available soon.
Firestone PondGard EPDM Pond Liner, 10'x100', 45 mil
SRP: $2,554.99
Now: $1,631.99
Temporarily out of stock. Available soon.
Elevate EPDM PondGard Pond Liner, 15' x 100', 45 mil
SRP: $3,834.99
Now: $2,447.99
Temporarily out of stock. Available soon.
Firestone PondGard EPDM Pond Liner, 15'x100', 45 mil
SRP: $3,834.99
Now: $2,447.99
Temporarily out of stock. Available soon.
Elevate EPDM PondGard Pond Liner, 20' x 100', 45 mil
SRP: $3,799.99
Now: $3,263.99
In Stock


Firestone PondGard EPDM Pond Liner, 20'x100', 45 mil
SRP: $3,799.99
Now: $3,263.99
In Stock


Firestone PondGard EPDM Pond Liner, 20'x25', 45 mil
SRP: $1,092.99
Now: $672.99
Temporarily out of stock. Available soon.
Firestone QuickPrime Plus, 1 quart

Top Seller
Firestone QuickPrime Plus, 1 quart
SRP: $62.99
Now: $49.99
Temporarily out of stock. Available soon.
Elevate QuickPrime Plus, 1 gallon

Top Seller
Elevate QuickPrime Plus, 1 gallon
SRP: $129.99
Now: $119.99
Temporarily out of stock. Available soon.
Firestone QuickPrime Plus, 1 gallon

Top Seller
Firestone QuickPrime Plus, 1 gallon
SRP: $129.99
Now: $119.99
Temporarily out of stock. Available soon.
Firestone QuickPrime Plus, 1 gallon, Pack of 4

Firestone QuickPrime Plus, 1 gallon, Pack of 4
SRP: $638.99
Now: $369.99
Temporarily out of stock. Available soon.
Firestone QuickPrime Plus, 2 quarts

Firestone QuickPrime Plus, 2 quarts
SRP: $124.99
Now: $89.99
Temporarily out of stock. Available soon.
Firestone QuickPrime Plus Value Box, 12 quarts

Firestone QuickPrime Plus Value Box, 12 quarts
SRP: $599.99
Now: $499.99
Temporarily out of stock. Available soon.
Elevate QuickPrime Plus, 1 gallon, Pack of 4

Elevate QuickPrime Plus, 1 gallon, Pack of 4
SRP: $519.99
Now: $379.99
Temporarily out of stock. Available soon.
Firestone QuickPrime Plus, 1 gallon, Pack of 2

Firestone QuickPrime Plus, 1 gallon, Pack of 2
SRP: $319.99
Now: $199.99
Temporarily out of stock. Available soon.
Firestone Quickseam Pipe Boot Flashing, 1" - 6.87"

Firestone Quickseam Pipe Boot Flashing, 1" - 6.87"
SRP: $119.99
Now: $84.99
In Stock


Elevate QuickSeam Pipe Boot Flashing, 1" - 6.875"

Elevate QuickSeam Pipe Boot Flashing, 1" - 6.875"
SRP: $122.99
Now: $84.99
In Stock


Little Giant Rockin' Foam, Black, 20 oz.

Little Giant Rockin' Foam, Black, 20 oz.
SRP: $49.99
Now: $41.99
In Stock


Elevate QuickPrime Plus, 1 gallon, Pack of 2

Elevate QuickPrime Plus, 1 gallon, Pack of 2
SRP: $259.99
Now: $199.99
Temporarily out of stock. Available soon.
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