Alternating Tread Stair Unit Material Steel Number of Steps 10 Handrails Included Yes Load Capacity 350 lb Climbing Angle 68 Degrees Step Tread Perforated Step Width 9 1/8 in Step Depth 10 1/2 in Base Depth 39 1/2 in Overall Height 113 3/4 in Color Yellow Standards OSHA 29 CFR 1910.25(e) Overall Width 23 1/2 in