This was another piece for the Houston, Texas residence. This semicircular bookcase was built to fit around a curved wall where the main hall joined the hall from another wing. The stairs to the second floor were on the opposite wall. The bookcase was built in four sections (only two are visible in photo) which were assembled on site. The shelves are not adjustable. A full size paper pattern of the wall's radius was supplied by the architect. I was greatly relieved when this piece was successfully installed. There was no room for error.