I used this on a home portable power tool. I store about 20 pounds of tools and the rails hold the weight well when the drawer is fully open. The drawer also opens smoothly. Installation is pretty easy if you follow the instructions. A half inch space on each side of the drawer is the ideal space. Also ensure that the mounting screws are centered in the holes in the slide and the screw heads are not protruding or they may interfere with opening or closing the drawer.