We bought this to match the full sized bed. It was easy to assemble with an electric drill. However, one of the pilot holes on the wood slats wasn't drilled through in the factory - that's a flaw - but besides that, everything was good quality. It slides right under the bed. Note that if you have the full-sized bed, you have to adjust the location of the support slat that runs the length of the bed (i.e., you have to decide if you want the trundle to slide under the left or right side, then move and drill in the longways support slat either over to the right or left of the pre-drilled holes - no paperwork told us that but it was evident).