The drawer assembled surprisingly easily without glue or fasteners. However, the slide design is difficult to install. It is slightly larger than the normal 151" opening and requires fastening to the side of the cabinet rather than the side of the frame. Therefore, on a 15" drawer slide and 15" cabinet opening, spacer blocks must be installed for the front slider rail installation. This is very difficult and took an additional 4 hours of my experienced time. I would pay  the extra $30 for the ones that fit correctly.