This bunk bed is terrific ...After searching on Wayfair, the Decimus Queen over Queen was the best I found. I even considered building them. After pulling the lumber list and necessary tools together to get it built, It was going to be far more work and expense than the Decimus!  I ordered it and was in my posesion in just a few days. While my sons were putting it together, they mentioned how great the wood was, solid wood, not one piece of particle board!! The instructions were accurate and helpful. Keep all the hardware in one place there is a lot of it. Best to use a battery powered drill, it'll save lots of time. The slats are strong and a lot of them. No box spring needed. I used 8" Wayfair foam mattresses. The steps to get to the top bunk can be installed on either end. That was helpful to the layout of the space. These beds are a great buy and super sturdy! Grand kiddos gave them a thumbs up too!! :) Thanks Wayfair!