Twist-proof due to the Alflo rung joints. Mar-resistant molded end caps and rail closures. Traction-tred deeply serrated flat steps. Easy to grip modified I-beam siderails. Smoothly operating extruded aluminum double rung locks. Shoe pivots to allow the shoe pad full ground contact for slip resistance. UL listed. Meets ANSI code and OSHA requirements. 2-3/4 in W siderails, 15/16 in W flange, 1- 1/2 in W rungs. Base width 16 in outside rails. Length of extension ladders when not extended is half the total length of the sections.
