Poor quality product.  The metal bar on the back of the shelf is unable to hold it up level and it dips forward (In the picture the shelf is installed into wood studs).  The finish on these shelf is also poor and chunks were missing on some of the edges and the manufacturer just stained the damaged areas when this piece of lumber should of never been used.  I was expecting a much better quality product for this price and would you stay away and look for something else.