The Mission Foldable Shelf is great for the space conscious user. The 4 shelves of storage is excellent for any room in the house and when not in use, the shelf can be folded up and conveniently stored away. The overall size of the shelf when expanded is 26"W x 12.3"D x 42"H and each shelf's dimension is 10.6"D x 22.8"W x 12"H with a static weight of 50 lbs per shelf. When folded, the shelf measures 25.9"W x 3.4"D x 42"H. The shelf is made of solid and composite wood in a natural finish. Assembly required.