Expanded metal ends extend 48? high above the deck, improve visibility, and allow 2-way access to material. All-welded construction with 12 gauge steel shelves. Standard with one or two shelves that are adjustable on 3-1/2? centers, and can be positioned with 1-1/2? lips either up or down. Additional adjustable shelves also available. 2 swivel and 2 rigid casters with quiet, non-marking 6? polyurethane wheels. Overall height 57?. Capacity 3600 lbs.