Stepladder, Material Aluminum, ANSI Type IA, Ladder Height 8 to 15 ft, Load Capacity 300 lb, Number of Steps 8 to 15, Base Spread 170 in, Bottom Width 37 in, Step Depth 1 in, Step Tread Ribbed, Series Skyscraper, Includes Instruction Manual, Standards OSHA and ANSI 14.2, Rung/Step Spacing 12 in