Literally the worst thing I have ever bought from wayfair. It has 3 issues 1) the wood pegs that are supposed to hold it square while you screw it together are too small for the holes drilled to receive the pegs, so everything slides around if you so much as breathe on it. 2) the screw holes arent drilled in exactly the right place. Even inserting and gradually tightening all the screws doesnt work. I finally had to try a different way than the instructions to get it together and it took hours for what seemed like it should be a pretty simple project. 3) the quality is shoddy. The wood frayed and cracked along the edges. The countersinks are messy and the exposed screws are unsightly. Seriously I strongly recommend you pick a different bookshelf.