Wood putty needed!!! I’m very happy with this, 3 holes on the back we too big so the screw couldn’t catch when assembling. I filled with wood putty, let it harden for 15 minutes or overnight then screwed the boards together. If we didn’t have wood putty we would not have been able to assemble. Also directions tell you to tighten down, but you would not be able to get the back in place of you do. This (as listed) absolutely needs 2 people to assemble, directions are clear. The trundle slides smoothly and color looks good. Now that it is assembled it feels secure.