Pre-drill holes for best results. Would have liked a shorter version of this set but this was the best I could find. I felt the length would be dangerous for my application. The hardware is stiff for a heavy door, but mine was light so I didn't need the included bracket. I left Rad, which was basic and cheap, and went to Low where I found a smaller mount. I painted it black and used the wheels from that set. This worked for me. The wheels don't have bearings, they spin in a screw, so who knows how long they'll last.
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