Sterling 32" W. x 72" T. Advantage white shower back walls are made of Sterling's exclusive Vikrell material with swirl gloss finish. Vikrell is a sheet molded compound that is solid color throughout and stronger than fiberglass. Must be used with our base and end walls, base Model No. 62011100-0 (SKU 473790) and end walls model No. 62015100-0 (SKU 473812). The finished shower unit is 32" W. x 34" D. x 72" T. Sterling Vikrell shower systems assemble with a tongue and groove system that minimizes the need for caulk. Use sterling doors model No. 950C-30S (SKU 417310) or 1500D-31S (SKU 412850). Sterling Vikrell fixtures are backed by a 10 year consumer warranty.