Description: Portable ladders for use around warehouses, hardware stores, or inventory rooms. Tilt the unit to allow for portability. Units roll on 4" poly-on-poly wheels. Constructed of square tubing framework, which handles uniform capacities up to 350 pounds. Features 30" high removable hand railing, access chain, 21" deep top platform, and a baked-in powder-coated toughness. Each step measures 24" wide by 7" deep and is spaced 10" apart. Models with 5 - 12 steps are shipped crated, some assembly required. Complies with ANSI A14.7 and OSHA 1910.29 specifications.