Ideal for transporting or staging of bulkier materials. All models have a 12 gauge reinforced deck, and 2 swivel, 2 rigid 6? polyurethane casters with a pushbar handle on the swivel caster end. These all-welded units have a powder coated finish and ship fully assembled. Side panels are 13 gauge flattened expanded metal with 1-1/2? angle iron corners and top edge. Front drop-gate with spring latches provide easy access. Interior height - 36? above deck.