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A-eco Pond Calculator

Pond Volume & Equipment Calculator

How to Calculate the Right Pond Liner Size

How to Calculate the Right Pond Liner Size

Getting the correct pond liner size is simple with just a few measurements. Follow this easy guide to ensure a perfect fit!


What You’ll Need:

Maximum pond length (e.g., 16.5 feet)

Maximum pond width (e.g., 13 feet)

Maximum pond depth (e.g., 3.3 feet)

The Formula:

To allow for proper coverage and overlap, use these calculations:

Liner Length = Max Length + (2 × Max Depth) + 2 feet (for overlap)

Liner Width = Max Width + (2 × Max Depth) + 2 feet (for overlap)

Example Calculation:

For a pond measuring 16.5 ft (L) × 13 ft (W) × 3.3 ft (D):

Liner Length = 16.5 + (2 × 3.3) + 2 = 25.1 feet

Liner Width = 13 + (2 × 3.3) + 2 = 21.6 feet

Result: You’ll need a pond liner 25 ft × 22 ft (rounded up for standard sizing).

Now you’re ready to install your pond liner with confidence!

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