Collection: Pond Liner & Underlayment

The foundation every pond stands on. Shop 45 mil fish-safe EPDM liner in boxed DIY sizes and contractor rolls up to 50'×100', heavy-duty and standard underlayment to protect it, and rock pads and geotextile for the stonework above. Size your liner right: maximum length + twice the depth + 2 feet of overlap, each direction.

Measure twice, order once — or email Info@fountaindepot.com and we'll check your math, backed by 50+ years of pond building in the GTA.