Well normal garage doors measure 8 x 7 feet 9 x 7 feet and 10 x 7 feet all around.
Garage door clearance height.
12 3 track 15 radius.
5 5 8 l c.
The garage door needs room to roll completely up when opening.
The standard rule of thumb is the door height plus an additional 18 inches.
A final consideration for door clearance is the depth of the garage.
Use a step ladder to more easily measure the ceiling height.
Lift clearance for applications where additional headroom clearance is required.
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.
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.
In order to install torsion spring hardware we recommend a clearance of 12 in.
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.
This option helps provide more vertical space in the garage.
On the other hand if there is only 4 in.
Used when there is at least the door height plus 12 of headroom clearance.
2 track headroom door height 12 required sideroom 4 5 required backroom 23 required.
This is the distance between the top of the door and the nearest obstruction toward the rear of the garage.