Unique shelf suspension hooks allow shelves to be added, removed or adjusted in seconds without disassembling the entire truck. No tools required; simply lift shelf off post hooks and reposition to desired height. Chrome-plated, open wire shelving offers maximum visibility, light and sprinkler penetration while minimizing dust accumulation. Standard top and bottom shelves each have 600 lb. capacity for stability, while Quick-Adjust shelves have 400 lb. capacity each. All shelves adjust on 1" increments on numbered posts.