Bought a total of 8 of these cabinets, 4 to hang on the garage wall and 4 to mount on rolling platforms to put under my workbench. It was easy to mount the included hang rails. and then I put (2) 90" long pieces of 3" X 3/4" oak that I had cut 3/8" deep x 3/16" wide dadoes on the top edge (to make a narrow slot on the top of the wood between it and the block wall I screwed it to. The rails slipped right into the dadoes and the cabinets were hung.