Track:

Channeled rails that house and guide the rollers on which a garage door operates.
* Bracket: Secures the track to the jamb.
* Clip: Fastens a track to a wall angle.
* Graduation: Measurement of the differential distance from the bottom to the top of the vertical track where it meets the jamb.
* Guard: Protects the back surface of the vertical track.
* Hanger Kit: Iron hanger that secures the horizontal tracks to the ceiling.
* Protectors: Reinforcements for vertical tracks.
* Radius: Indicates where the track changes from horizontal to vertical.
* Roller: Guides the door along the track.