Stainless steel cross braced ladders are designed especially for commercial use. Cross brace adds extra rigidity and strength. 1.90" O.D. tubing is available in three wall thickness, lighter duty .065" wall or heavier duty .109" wall & ultra duty .145" wall. Width of frame front to back is available in 24", 29" and 35" widths. Standard spacing between ladder rails is 19" (center-to-center of anchor). All ladders include cycolac non-skid steps and ladder bumpers. Requires two anchor sockets and escutcheons (extra).