Extension Ladder Material Aluminum Industry Ladder Size 20 ft Extended Ladder Height 17 ft ANSI Type I Load Capacity 250 lb Adjustable Increments 3/8 in to 8 1/4 in Bottom Width 20 3/4 in D1800-2EQ Series Rail Type I-Beam Shoe Design Dual Action Shu-Lok(R) Includes Mar Resistant End Caps Rung Shape D-Rung Closed Height 10 ft Section Length 10 ft Net Weight 37.5 lb Rung/Step Spacing 12 in