Specially designed for hospitality installations, KOHLER® Stoneridge™ corner shower bases are not only extraordinarily durable but also beautiful. The perpendicular double-threshold design enables you to pick which side to use for entry and exit and which threshold to hold a fixed glass panel. Made from KOHLER® Lithocast® cast resin, the honed surface offers elegance along with excellent traction underfoot, and the transitional design fits in easily with both traditional and modern bathroom decor. Plus, Stoneridge 60" x 36" Lithocast shower bases don't require mortar for installation.