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large pond in front of house

Polyethylene is stiffer than other materials which makes installation more difficult in backyard water gardens. For Smaller backyard ponds we recommend EPDM Liners.

Large ponds require a pond liner that is safe for fish and plant life, inexpensive, easy to install, and durable enough to last twenty years plus. Polyethylene is the ideal pond liner material for these applications.

Medium-density polyethylene contains up to 5% carbon black which makes it extremely UV stable and assures a long outdoor life. It is able to withstand temperatures from 180°F to -70°F.

20 & 30 mil medium-density polyethylene pond liners can be custom fabricated to your size specifications. We ask that the width of the pond liner (the smaller of the dimensions) be in an increment of 10' so that we can keep our pond liner prices low.

The 20 mil medium-density polyethylene pond liner costs 30¢/ sq ft and the 30 mil pond liner costs 36¢/sq ft. These prices are FOB Shawnee, OK and do not include shipping.

The maximum sizes for fabricated one piece pond liners are:

  • 20 mil: 40,000 square feet

  • 30 mil: 26,680 square feet

** We offer full installation services if your liner exceeds these limits **

Polyethylene Pond Liners- Common Sizes
20 & 30 mil- Backed by Unit Liner's 20 Year Warranty
*Custom Sizes Available 
(
Width Must Be Divisible by 10')

Size 20 mil Price 20 mil
Weight
30 mil Price 30 mil Weight
30' x 30'

$270.00

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90 lbs

$324.00

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135 lbs
30' x 35'

$315.00

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151 lbs

$378.00

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158 lbs
30' x 40'

$360.00

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151 lbs

$432.00

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180 lbs
30' x 50'

$450.00

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160 lbs

$540.00

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225 lbs
30' x 60'

$540.00

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180 lbs

$648.00

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270 lbs
35' x 40'

$420.00

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155 lbs

$504.00

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210 lbs
40' x 40'

$480.00

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160 lbs

$576.00

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240 lbs
40' x 50'

$600.00

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200 lbs

$720.00

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300 lbs
40' x 60'

$720.00

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240 lbs

$864.00

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360 lbs
50' x 50'

$750.00

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250 lbs

$900.00

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375 lbs
50' x 60'

$900.00

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300 lbs

$1080.00

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450 lbs
50' x 70'

$1050.00

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350 lbs

$1260.00

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525 lbs
50' x 80'

$1200.00

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400 lbs

$1440.00

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600 lbs
50' x 100'

$1500.00

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500 lbs

$1800.00

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750 lbs
60' x 60'

$1080.00

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360 lbs

$1296.00

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540 lbs
60' x 80'

$1440.00

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480 lbs

$1728.00

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720 lbs
60' x 100'

$1800.00

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600 lbs

$2160.00

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900 lbs
60' x 120'

$2160.00

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720 lbs

$2592.00

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1080 lbs

** All Prices FOB Shawnee, OK **


I don't see the size listed that I need...

It is impossible for us to list every size of polyethylene liner that is available. Call us at 800-633-4603 & we'll be happy to assist you with the size that best fits your needs.

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Unit Liner Company
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