Specially designed for hospitality installations, KOHLER® Stoneridge shower bases are not only extraordinarily durable but also beautiful. Made from Lithocast® cast resin, the transitional design fits in easily with both traditional and modern bathroom decors, and its honed surface offers elegance along with excellent traction underfoot. Available in several sizes and two threshold heights with options for drain locations, Stoneridge 60" x 36" Lithocast shower bases are also perfect for residential use and do not require mortar for installation.