They mean it when they say assembly required
I must have missed the part that said assembly required. Needs space to assemble flat, eight screws/nuts, adding slats and cover - which is open on the bottom. So, if you have pets they could be able to access the edges underside depending on the bed arrangement. The parts fit together perfectly. One nut was not threaded well, but they provided a spare - so that was smart of them. This doesn't appear as strong to me as a traditional wood and metal box spring, but I'm no expert. I got two twin XL to use with a king mattress. I could have gone to the bed shop for similar price and had two traditional box springs delivered. However, if you ever think you're going to need to break these down for moving - they'd be a good solution.













