Use this guide to determine the minimum headroom needed from the top of the opening to the ceiling that will enable garage door openers:
A. LOW HEADROOM TRACK: 8″ minimum to 12″ minimum. If between 12″ and 13″ use Low Headroom Track.
B. 12″ RADIUS TRACK: 13″ to 16″. If between 15″ and 16″, use 12″ Radius Track.
C. 15″ RADIUS TRACK: 16″ or above.
D. SPECIALTY TRACK: High Lift and Follow the Pitch