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 shower bases don't require mortar for installation.