I believe that these will be sufficient for what I need, but they are not exactly solid. I couldn't see any screws in the photos provided so I thought these were each one solid piece. I also thought it might be possible that they could be long pieces and round pieces. I was completely wrong. They are all small pieces to connect, for example the circles are made up of 4 pieces and the verticals are several pieces. Too many pieces that can loosen up and get wonky or look crooked.