Cable Ladder HL3 of H.S is an economical wire management system designed to support and protect electrical wires and cables and Cable Ladder HL3 with strengthening cross bars is different from the HL1 of perforated cross bar, which is permitted in a variety of indoor and outdoor applications. Cable Ladder trays HL3 are of two side beams connected with individual transverse rungs and this kind of structure provides solid side rail protection and system strength with a serials of matching smooth radius fittings and a wide selection of materials and finishes. Materials available: Aluminum, Mill galvanized Steel, Steel HDG, and Stainless Steel. Cable Tray Rung Spacing is available in 6", 9", 12" and 18" and Load Depths are available in 3" through 9".