Pond Liner
Liners allow you to create the DIY water garden of your dreams. They promote beneficial bacteria growth, providing just the right foundation for an environmentally balanced habitat. Black liners are ideal because they merge with the pond environment and create a more natural look.
Types of Liner
HDPE Liners
HDPE liners are high-density polyethylene liners engineered for strength and longevity. The 20-mil thickness resists tears, punctures, and UV damage to perform reliably season after season. Ideal for water features, rainwater catchment, drainage or water conveyance systems, raised garden beds, and more.
PVC Liners
PVC liners are constructed from a 14.5-mil puncture-resistant and lightweight, yet durable material. Perfect for any project that requires a non-porous material capable of holding water, like in-ground and above-ground ponds.
Pre-formed Rigid Liners
Pre-formed rigid liners are recommended for smaller ponds and first-time pond builders; they are generally easier to install.
EPDM Liners
EPDM liners are constructed from a 45 mil (1.1 mm) material that's suitable for rough or rocky terrain.
Tips for Choosing the Right Liner
Purchase a liner that is slightly larger than the area
Liners come in several sizes. You can cut it down if necessary. You can also seam together multiple liners to form an even larger liner using seaming tape.
Leave at least 1 ft. of overlap on each side of the area
The overlay can be disguised and held in place by decorative rock or landscaping. This prevents the liner from slipping due to the weight of the water it’s holding.
Clear away any debris from the pond hole
Debris can potentially puncture the liner. We recommend using an underlayment, like sand or an old blanket, to provide additional protection for the liner. Press the liner into all gaps to ensure a proper fit.
What size liner do you need?
Use this formula (measure in feet) to select the right liner for your project.
Length + (Depth x 2) + (2 ft. overlap) = Liner Length
Width + (Depth x 2) + (2 ft. overlap) = Liner Width
| Liner Size | Pond Size | Pond Volume |
| 7 ft. x 10 ft. | small | up to 200 gallons |
| 10 ft. x 13 ft. | medium | up to 600 gallons |
| 13 ft. x 20 ft. | large | up to 1,600 gallons |