Straight Ladder Ladder Height 18 ft Overall Width 17 13/16 in Material Aluminum Load Capacity 300 lb Number of Rungs 18 Top to Bottom Rung 17 ft Rung Dia 1 1/2 in Rung/Step Spacing 12 in Rung Width 15 13/16 in Top Step Height 17 ft 6 in Finish Natural Rung Shape D-Rung Standards ANSI OSHA Includes Full I-Beam Mar-Resistant Rail End Caps Swivel Safety Shoes ANSI Type IA Net Weight 38.0 lb