With a working height up to seven feet nine inches, this three-step rolling ladder has a platform height of two feet three inches. Made of painted steel, the ladder has a 400-pound maximum load capacity. With a 15-inch platform depth and a bottom width of 26-inches, this ladder has a clean room finish 304 number four and complies with mobile ladder standards ANSI 14.7 and OSHA 1910.29.