Straight Ladder Ladder Height 20 ft Overall Width 17 in Material Aluminum Load Capacity 300 lb Number of Rungs 20 Top to Bottom Rung 19 ft Rung Dia 1 1/4 in Rung/Step Spacing 12 in Rung Width 16 3/4 in Top Step Height 20 ft Rung Shape Round Standards ANSI ANSI Type IA Net Weight 45.5 lb