These shelves are cheaply made and extremely difficult to install. They are held in place by tension of the metal bars, which makes me unconfident. The installation template is terrible - the screw holes are all wrong due (likely due to the fact that the screw template is folded) and the anchors are cheap. The sticky tack on the back of the screw template does not remove from the wall, I had to do a lot of scraping and fixing of my wall to get them off.

Just buy a different shelf, this one is not worth it...