The original shelves arrived with a corner crushed on one and a chip in the wood on the top of the other. I contacted customer service and they happily sent me 2 brand new shelves! Very happy with the customer service, just wish the original shelves had been packaged properly to avoid the initial damage. These are easy to hang. The top piece of wood is not drilled into the bracket - there is a small hole in the bracket and another small hole on the underside of the shelf and a small piece of woods connects the 2 together as if the shelf sits on top of the brackets. Yes, these shelves are somewhat cheap but for the price I am happy with them!