Hero section photo of a completed water garden

Hiding pond liner is one of a pond owner’s greatest challenges

Rock-on-a-Roll is the solution

Laying Rock-on-a-Roll

Rock-on-a-Roll is a flexible material with the look and texture of natural stone. It conforms to any shape, so you can hide pond liner, skimmers, filters, and hoses without piling up boulders.

We developed Rock-on-a-Roll over 30 years ago for use in our own ponds. We wanted an alternative to the harsh, cluttered look of too much stone. The result is a thin, lightweight sheet that mimics natural bedrock and installs directly over liner in place of rock.

A roll of Rock-on-a-Roll

Rock-on-a-Roll is now used by pond owners across the country because it is:

Easy to use — Flexible and easy to shape. Easy to cut with a utility knife to fit any contour.

Attractive — Realistic in color and texture that closely match natural stone.

Lightweight — Easy to handle and takes up almost no space inside the pond.

Fish and plant safe — Made from inert materials that won’t affect water quality.

Long-lasting — Resistant to UV, water, and weather for years of reliable use.

Before, during and after hiding pond liner with Rock-on-a-Roll

Explore our Photos and Customer Photos pages for real-world ideas and inspiration. You can also visit the Raised-Edge Method page to learn a simple technique for building a more natural-looking pond.

Rock-on-a-Roll comes in rolls that are 34 inches wide, with lengths of 8, 16, 24, 32, and 40 feet. It is thin and flexible—similar in thickness to pond liner—but is designed to sit on top of the liner, not replace it. An 8-foot roll weighs about 5 pounds, with longer rolls weighing proportionately more.

Rock-on-a-Roll's standard color is Cobblestone, a natural blend of predominantly brown tones with gray and subtle yellow highlights. Its versatile coloring blends easily with a wide range of stone and landscape settings.

Looking for Slate Gray? Slate Gray has been discontinued, but we have reserved a small amount for previous customers who need to match an existing installation. Learn more about Slate Gray availability.