Luckin Industrial metal piping for 4-shelf wall shelf This set does not include the actual shelves which you can use wood to supplement. There are also 2 pipes missing. See pics of the shelf assembled. Instead of the 24 inch or so gap at the bottom, the current pipes mean there would only be a foot or so gap at the bottom. Great set--the width of this using would be limited to what shelves you provide and the weight they can hold. Shelf 3-8