The Grainger Freestanding Metal Shelving Shelf Kit is a 4-shelf steel shelving unit with a 620 lb weight capacity per shelf. It has adjustable shelves with 1" increments, measures 36"W x 18"D x 74"H, and assembles without tools using a boltless design. The kit includes 4 steel shelves, 4 posts, and hardware for assembly. Shelves are electroplated for corrosion resistance. This industrial-grade shelving provides sturdy storage space for warehouses, stockrooms, garages, and other commercial/industrial settings.