I am not sure how one would go about mounting the cube to the wall. There is not much of a lip on the back. Another thing that I have found is that they do not hold too much weight ie the drawers start not to close properly and the shelves tend to move out of the side grooves. What type of walls do you have? Would you be using the cubes to hold paper (gets very heavy is storing a lot of paper) Think about this very carefully before you make a final decision.