These were really disappointing - the is no depth to the hand them properly. My contractor ended up having to use dow rods to install them the wood just chipped off in the back - there is like a keyhole to hang them, the shelves are heavy but there is NO WAY they can hold their own weight let alone items on the shelves...I waited a long time to get them so I had him do the extra work to install them only because I was past a deadline.