Alternating Tread Stairs Walk-Thru Included Yes Overall Height 7 ft. Overall Width 23-1/2 In. Material Steel Load Capacity 350 lb. Ladder Height 7 ft. Number of Rungs 12 Span 60-3/4 In. Stair Angle 56 Degrees Stair Width 9 In. Tread Raised Perforations Tread Depth 10-1/2 In. Top Step Height 7 ft. Finish Yellow Powder Coat Standards OSHA