Pond Liner Calculator — Calculate Liner Size & Requirements

Pond Liner Calculator

Calculate the perfect pond liner size for your water feature. Determine liner dimensions, overlaps, and material requirements based on pond shape, depth, and liner type.

Step 1: Pond Specifications

2.0 ft

Understanding Liner Sizing

Pond liners need to be larger than the pond dimensions to account for depth, overlap, and anchoring. Typically add 2-3 feet to each dimension for proper installation.

Step 2: Liner Specifications

2.0 ft

About Liner Materials

EPDM rubber is the most durable (20+ year lifespan) and flexible. PVC is economical but less UV resistant. HDRPE is puncture-resistant and good for rocky soil. Always use underlayment to protect the liner.

Pond Liner Results

Summary
Liner Comparison
Breakdown

Required Liner Size

14′ × 10′
For a 12′ × 8′ oval pond with 2.0 ft overlap
Liner Area
140 sq ft
Liner Material
PVC (0.5mm)
Pond Volume
1,200 gal
Underlayment
Geotextile

Liner Material Comparison

Liner Type Lifespan Puncture Resistance UV Resistance Cost

Liner Calculation Breakdown

Liner Sizing Formula

Liner Length = Pond Length + (2 × Depth) + (2 × Overlap)

Liner Width = Pond Width + (2 × Depth) + (2 × Overlap)

For circular ponds, use diameter instead of length/width. Add extra material for freeform or irregular shapes (typically 10-15% more).

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