Fixed Ladder Walk-Thru Included Yes Exit Top Overall Height 21 ft Overall Width 28 in Material Steel Load Capacity 450 lb Number of Steps 18 Top Step Height 17 ft Rung Dia 3/4 in Rung/Step Spacing 12 in Step Width 18 in Finish Safety Yellow Standards ANSI OSHA Compliant Includes 42 in guardrails Manufacturers Warranty Length 1 yr