Use a step ladder to more easily measure the ceiling height.
Garage door clearance height.
5 5 8 l c.
Used when there is at least the door height plus 12 of headroom clearance.
This is for a normal home with a normal car truck suv or van parked inside.
304 mm available it is best to use a dual track system designed for low headroom.
In order to install torsion spring hardware we recommend a clearance of 12 in.
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.
3 track headroom door height 12 required sideroom 5 5 required backroom 23 required.
Measure the backroom the distance from the garage door opening to the back wall of the garage.
This option helps provide more vertical space in the garage.
On the other hand if there is only 4 in.
12 3 track 15 radius.
Well normal garage doors measure 8 x 7 feet 9 x 7 feet and 10 x 7 feet all around.
You should reconsider the specifications for your garage door if you have multiple vehicles or a large vehicle to park inside.
A final consideration for door clearance is the depth of the garage.
The garage door needs room to roll completely up when opening.
This is the distance between the top of the door and the nearest obstruction toward the rear of the garage.
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.
2 track headroom door height 12 required sideroom 4 5 required backroom 23 required.