Twist-proof stage design. Individual slip-resistant decking minimizes paint or material build-up. Vinyl-coated end caps serve as hand grips and protects from sharp edges and surface marks. Double end rung provides extra rigidity on stages 20' or longer - standard on stages with 5" or 6" rails. Closed position 8'; open position 13', and plank width 14". Inner rails 1-1/8" x 2", Outer flanged rails: 1-7/8" x 2". Meets ANSI and OSHA Standards.