The quality control of the build was lacking. The pull-up bar when placed into the holes of the supports the bar was at least 5 degrees off. I didn't measure it exactly. In order for the bar to sit in the supports at 90 degrees I needed to grind 1-2 millimeters off of both of the right lower and left upper parts of the holes on both supports. I wouldn't recommend this purchase unless you have the ability to correct the manufactures defect. One may be tempted to try to bend the support rotationally in order for the bar to sit at 90 degrees. This I would not recommend as it may compromise the welds of the bracket supports.