Straight Ladder Ladder Height 12 ft Overall Width 18 1/8 in Material Aluminum Load Capacity 300 lb Number of Rungs 12 Top to Bottom Rung 11 ft Rung Dia 1 3/4 in Rung/Step Spacing 12 in Rung Width 18 in Top Step Height 8 ft Rung Shape D-Rung Standards ANSI A14.5 (2007) OSHA ANSI Type IA Net Weight 21.5 lb