Roll-A-Fold Ladders 4-8 Grip Strut Steps  Portable ladder conveniently folds for storage. Constructed of square tubing framework which handles capacities up to 350 lbs. Features 30" high removable hand railing, 14" deep top platform, and an industrial blue painted finish. Each step measures 17" wide by 7" deep and is spaced 10" apart. Unit rolls around on two large 10" x 2½" hard rubber wheels. Units are shipped crated, some assembly required. Complies with ANSI 14.7 and OSHA 1910.29 specifications. Specs: Number Of Steps 4, 5, 6, 7, 8, and 9, Angle 58°, Top Step Height 40", 50", 60", 70", and 80".