The exterior of the Endless Pool is constructed of six panels that bolt together on site to form a rigid rectangular enclosure. The pool panels are constructed of heavy-duty, 14-gauge galvanized-steel. The finished pool is free-standing, allowing easy installation in almost any setting. Excavation is optional.

The interior of the steel enclosure is lined with a rugged PVC membrane liner. This liner is smooth and soft to the touch, not hard or abrasive. The PVC liner bottom rests on a layer of soft foam underlayment that adds to the swimmer's comfort.

The 28-mil liner is 50% thicker than the pool-industry standard of 18-mil. The Endless Pool liner is durable enough to withstand normal jabs and pokes, but sharp objects like broken glass can puncture it.

If this occurs, the liner can be patched with an inexpensive kit (included) without draining the pool. The liner is warranted for 10 years against structural defects.

The water propulsion system and underwater perimeter return-channel benches are installed inside the pool frame and are made from the highest quality thermoformed acrylic (available in two colors).