Upon unboxing, I was immediately upset at how the rails were very noticeably bent. But I kept going, all tools needed to assemble were included kzbin.infoUgkxqtX4Dxs6aecAZEuz6GY5-d81YecKCshn and I had it set up in about 30 minutes. Honestly I love this thing, make sure to read the measurements and measure your space so you know if it'll work for you. I bought this to put inside my closet, underneath where I hang my clothes and it is absolutely perfect! It is VERY sturdy and all drawers glide easily and mine are stuffed, and they are still flush when closed.