Angle ledges are specially designed for full and half sized polycarbonate and polyethylene food boxes and for full sized metal and plastic steam table pans in a variety of depths. Ledges are electronically welded to uprights for extra durability. Tie bars are welded to the uprights for added rigidity. Recessed plate mounted casters are standard for easy swivel and roll-in coolers. Narrow opening fits 18″ x 26″ (457 x 660) and 14″ x 18″ (356 x 457) boxes.