If you would like assistance with this process, please contact us at: Phone 800.747.6095.
How to Use this Pond Liner Size Calculator
Calculate the liner size for a pond by entering the dimensions in feet. Fractions of a foot should be entered in decimal form.
- Enter the shorter of your two distances in the width box and the longer in the length box.
- The max. depth refers to the deepest part of your pond.
The final calculation includes an additional 2 ft per side to accommodate an anchor trench. Once you decide on your liner size shop our American made pond liners here. If you aren’t sure contact us for assistance and we would be glad to help.

Pond Liner Calculator Disclaimer
For estimating purposes only. The Pond Liner Size Calculator provides an approximate liner size based solely on the dimensions you enter. Results are not a guarantee of fit and are not a substitute for professional measurement, design, or engineering.
What the calculator assumes. The calculation assumes a rectangular pond with a single maximum depth and adds 2 ft per side for an anchor trench. It does not account for irregular or freeform shapes, shelves or tiered depths, side slopes, waterfalls, streams, seams, overlap, underlayment, or site-specific conditions. Your actual liner requirements may be larger than the calculated result.
Your responsibility. You are solely responsible for the accuracy of the measurements entered and for verifying the liner size, material, and thickness appropriate for your project before ordering. When in doubt, round up.
No warranty. Americover, Inc. makes no warranty, express or implied, regarding the accuracy, completeness, or suitability of calculator results for any particular purpose.
Limitation of liability. To the fullest extent permitted by law, Americover, Inc. is not liable for any loss, cost, or damage, including product, labor, installation, shipping, or project delay costs, resulting from the use of this calculator or from ordering an incorrect liner size based on its results.
Returns. Custom-fabricated liners are made to your specifications and are non-returnable. Eligible stock items may be returned within 90 days of delivery in original packaging with prior authorization, subject to a 25% restocking fee plus shipping costs.
Confirm before you order. Your Americover account manager can review your dimensions and help confirm the right size before fabrication. Call (833) 261-6501, Mon–Fri, 7:30 AM – 4:30 PM PST.
By using this calculator, you acknowledge and agree to these terms.
Are You Ready to Request a Quote for Your Pond Liner?
Get competitive pricing, fast lead times, and expert support on high-performance pond liners made in the USA. We provide free quotes on all liner solutions—standard, custom, or specialty. Need a BABA-compliant product for a government project? Or a GRI-GM30 compliant liner for critical containment? Let us know your requirements, and we’ll ensure your solution meets the necessary standards. Americover is your trusted source for durable, American-made pond liners and accessories.
Shop Our Pond Liners & Accessories
Explore a wide selection of high-quality pond liners and installation accessories designed for performance and durability. From reinforced geomembranes for containment projects to geotextiles, tapes, and fasteners, Americover offers everything you need to build, repair, or maintain your pond. Available in standard and custom sizes—perfect for residential, commercial, and industrial applications.
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Custom Fabricated HDPE Geomembrane Liner
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Custom Fabricated LLDPE Geomembrane Liner
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Custom Fabricated Polypropylene Geomembrane Liner
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Custom Fabricated PVC Liner
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Custom Fabricated Woven Coated Poly
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Hydraflex™ H-Series
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Hydraflex™ Ultra Series
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Pro-Wedge Heat Welder
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Blog Resources for Pond Liner Tips and Features
Looking for expert insights on pond liners? Our blog is packed with helpful resources covering the latest tips, installation best practices, and product features for geomembranes, geotextiles, and other pond liner solutions. Whether you’re managing stormwater, building a decorative pond, or tackling a containment project, explore our articles to make informed, confident decisions.




