Not as heavy duty as I expected them to be. They’re like hollow wood. The mounting brackets that came with them were all uneven and had to be straightened out because they were basically made of tin. As you can see in the photo some of them point up and down due the the uneven mounting brackets. I’m just hoping that they will straighten out with some weight on them over time. You definitely need someone mechanically inclined to install them. There was a lot of measuring, leveling and anchoring to make sure they were secure. At first glance they look great but I would have spent a few more dollars for better quality had I known.