You should reconsider the specifications for your garage door if you have multiple vehicles or a large vehicle to park inside.
Garage door clearance height.
On the other hand if there is only 4 in.
5 5 8 l c.
The garage door needs room to roll completely up when opening.
2 track headroom door height 12 required sideroom 4 5 required backroom 23 required.
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.
This option helps provide more vertical space in the garage.
12 3 track 15 radius.
Measure the backroom the distance from the garage door opening to the back wall of the garage.
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.
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.
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.
121 mm to 12 in.
Lift clearance for applications where additional headroom clearance is required.
This is the distance between the top of the door and the nearest obstruction toward the rear of the garage.
Well normal garage doors measure 8 x 7 feet 9 x 7 feet and 10 x 7 feet all around.
304 mm available it is best to use a dual track system designed for low headroom.