Garage Door Track / Rails

 The track is another hardware part that is bolted to the wall and suspended from the ceiling on each side of the door, for the door to ride in as it moves up and down.  The rollers slide inside the track to allow the door to glide up and down with a smooth motion.

Track for residential homes usually runs on a 12 to 15 inch radius, however when there is very little headroom between the top of the door and the ceiling it will need to be on a "ow headroom" track.