The P400 series aluminum platform ladders have a duty rating of 375 pounds and feature a safety guard rail to encourage proper use. The large platform provides a secure and comfortable work area, and the slip-resistant TRACTION-TRED® steps are double riveted and knee braced. A full set of rear horizontals are spaced one foot apart. The 10', 12 ft and 14 ft models have a duty rating of 300 pounds. These ladders are lightweight and easy to transport.