Bulk Storage Rack Add-On Unit Width 72 In. Depth 36 In. Height 72 In. Load Capacity 4500 lb. Number of Shelves 3 Capacity per Shelf 1500 lb. Beam Capacity 1500 lb. Silver Material 16 ga. Steel Decking Material Galvanized Wire Finish Powder Coat For Use With Mfr No ERX723672S Standards NSF Includes Upright