This box spring is so easy to put together, well really you dont put anything together. You just unfold it (love that its foldable), and then you place it on the cover, and zip it. Its that easy. The reason for 4 stars is bcuz I bought a full size box spring and for whatever reason it does not extend to the length of my full size mattress (TuftNeedle brand). This box spring falls short both lengthwise and widthwise. So pay attention to the measurements. Otherwise, we are making use of it. And again, I love that if I need to purchase a different box spring, this one is collapsible and I just put it in the closet.