12 3 track 15 radius.
Garage door clearance height.
2 track headroom door height 12 required sideroom 4 5 required backroom 23 required.
Lift clearance track follow the roof headroom clearance dimensions door height centerline of shaft minimum headroom 2 track 15 radius thru 16 0 o h.
This is the distance between the top of the door and the nearest obstruction toward the rear of the garage.
3 track headroom door height 12 required sideroom 5 5 required backroom 23 required.
This is for a normal home with a normal car truck suv or van parked inside.
Used when there is at least the door height plus 12 of headroom clearance.
A final consideration for door clearance is the depth of the garage.
Measure the backroom the distance from the garage door opening to the back wall of the garage.
Well normal garage doors measure 8 x 7 feet 9 x 7 feet and 10 x 7 feet all around.
In order to install torsion spring hardware we recommend a clearance of 12 in.
304 mm available it is best to use a dual track system designed for low headroom.
On the other hand if there is only 4 in.
Use a step ladder to more easily measure the ceiling height.
The standard rule of thumb is the door height plus an additional 18 inches.
Lift clearance for applications where additional headroom clearance is required.
A garage will need backroom that equals the door height plus 18 inches and possibly more based on the installation of an automatic garage door opener.
121 mm to 12 in.
You should reconsider the specifications for your garage door if you have multiple vehicles or a large vehicle to park inside.