How much headroom is required above the garage door ?
There are different lift types for commercial or industrial doors. When we talk about a "Standard" lift movement, here are headroom requirements:
Type | Radius: 12 in. | Radius: 15 in. |
2 in. Commercial
Door widths: 8 to 12 ft. | 12 in. | n.a. |
2 in. Commercial
Door widths over than 12 ft. | 13.5 in. | 15 in. |
| 3 in. Industrial | n.d. | 15 in. |
Note : if you use a Trolley type operator, add 2.5 in.
IMPORTANT: do not use a "Standard" lift movement if you have 2 ft. headroom & over. Use a "High Lift" movement.
For Low Headroom applications, the minimum headroom requirement is this following:
Type | Low Headroom
Rear installation | Low Headroom
Front installation |
2 in. Commercial
Door widths: 8 to 12 ft. | 4 in. | 8 in. |
2 in. Commercial
Door widths over than 12 ft. | 4 in. | 10 in. |
| 3 in Industrial | 11 in. | 13 in. |
Note : if you use a Trolley type operator, add 2.5 in.