This is from the basement bedroom. You won't see the shelves from this side, but I wanted to show you want the set up was. The ones on the left here are going to be big enough to hold paperbacks and the other smaller section - but taller - is for a few of the larger books we have. The wall is two 2by4s thick. Good size for paperbacks. And we were gonna make the wall thicker anyway, it had a weird ledge in the bedroom from the main house beam running over it.