Stepladder, Material Aluminum, ANSI Type IA, Ladder Height 9 to 17 ft, Load Capacity 300 lb, Number of Steps 9 to 17, Base Spread 146 in, Bottom Width 37 in, Step Depth 1 in, Step Tread Ribbed, Series SkyScraper, Includes Instruction Manual, Standards ANSI, CSA Certified, Rung/Step Spacing 12 in