When we moved into our new house, I figured it was time to replace my girls's mattresses on the floor with actual beds. so I set about making the twin storage beds with corner unit. I primed all the wood prior to cutting and assembling, and that made things go much faster. Assembling the corner unit was tricky, since i really didn't want to have sanding and much paint in their bedroom. (i loaded in the beds first and the corner unit a week later). I added trim that wasn't on the plan, and also used the magnetic paint on the center area, although it makes a weak magnetic surface. All in all, I LOVE the way it turns out and no one can believe that I built it and didn't buy it... (although it seems obvious to me when you look closely LOL)