| Description | Add-On Shelving Unit, wire, 4 shelves, 2 posts, (2) S-hooks per shelf and plastic shelf clips, 63"H, 21"W, 48"L, clear epoxy powder coated zinc-chromate plated finish, Poly-Z-Brite, shipped unassembled | Use with Industrial Starter Kit (SAF5285), sold separately. Includes four wire shelves and two posts. Extra Shelves (SAF5287), sold separately. 48" Wide 18" Depth—Shpg. wt. 53 lbs. | Use with Industrial Starter Kit (SAF5285), sold separately. Includes four wire shelves and two posts. Extra Shelves (SAF5287), sold separately. 48" Wide 24" Depth—Shpg. wt. 84 lbs. | silver - weight capacity: 1250lbs per shelf | silver - 36in W x 24in D - weight capacity: 1000lbs per shelf |