I had complained about the initial non-comital response I had got from Perigold regarding one of the glass shelves delivered that was the wrong dimension. But today I got a replacement and I’m very happy. Perigold came through! Thank you! Now to the bookcase. The frame is sturdy, as it comes in one piece, and can be adjusted to fit the floor. The glass shelves give it an airy feeling. I’m using it as a space divider and it works perfectly.