My husband is building our coop right now, and he has already built the nest boxes and I am really hoping the design is not flawed. There is a row of 7 12x12x12 boxes and they are at the top of the coop so the roof of the coop is actually the nest box top. The back of the nest box, (if they face out it will be where their butts are,) is where we will open it to get the eggs. So there is the nest box opening on the inside of the coop, and then on the outside of the coop there is a door that flips open to grab the eggs. There is a ledge so the eggs don't just roll out. I know people usually put the openings to grab the eggs on the top so I am wondering if sticking it off the back is a good idea. It's too tall to do it from the top, but it's not a walk in either.