Safco 5243 Steel Commercial Extra Shelf Pack includes two shelves and snap-together clips with a capacity to hold up to 500 lbs. per shelf and has 2000 lbs. overall capacity. This commercial extra shelf pack is ideal add on for model 5241BL commercial wire shelving. 2 shelves. Weight capacity per shelf: 500 lbs. Overall capacity: 2000 lbs. Paint/finish: Powder coat. Shelf adjustability: 1" increments. Material thickness: 10 (shelf surface), 3 (frame), 6 (wave pattern). Assembly required: Yes. Includes snap-together clips. Easy installation without tools. GREENGUARD Certified. Safco Limited Lifetime Warranty. Dimensions: 1"H x 48"W x 18"D. Black steel. Dimensions: 1"(H) x 36"(W) x 18"(D). Material thickness: 10 ga(shelf surface), 3 ga(frame), 6 ga(wave pattern) With the Safco steel commercial extra-shelf pack, you can add storage space to your 5241BL commercial wire shelving unit. Each pack comes with two shelves, each made with heavy-duty black steel. The included snap-together clips allow easy installation without the use of tools, so you can create a custom storage unit in minutes. When assembled, each shelf is rated to support a maximum of 500 pounds.