The garage also needs a new floor and a new roof.
Modify garage door height taller door in a shorter opening.
Standard single car garage door widths start at 8 feet for single car garages and move up in 12 inch increments to 10 feet wide.
Add an extra 1 1 2 inches to each trimmer to allow space for the jamb a gap under the door and some wiggle room.
Double car garage doors typically start at 12 feet wide and move.
Older homes have smaller openings for garage doors making it more difficult to fit modern vehicles in.
It has the old style carriage doors.
I have a detached two car garage that is getting up there in years.
Add to that distance the length of track that is left once you open your garage door.
One way to do it would be to get wall extensions for the entire the garage and then cut the roof of the garage off lifting it up to the height you want it.
Reinstall your track and bearing plate.
The garage is a total of 24 wide by 24 deep.
If you wish for the door opening height to increase you will turn the up or open screw in a clockwise direction.
The height of the rough opening would be the height of the garage door plus the thickness of whatever you are putting underneath the header in addition to the thickness of the mortar etc.
That made my door height two inches taller.
Because garage doors are usually sized to snugly fit the dimensions of the garage itself making the door larger usually means making the garage larger.
I removed some siding and and re did the trim on the top of the door and then recovered every thing with aluminum and installed new rubber garage door sill around the opening.
I had a 2x6 on the flat under the header so i just removed that and cut a half inch off the header.
The wife wants to replace the two with one 16 overhead garage door.
Turn it only a quarter of a turn.
Step 4 test the opener to see if the door height is now at the desired level.
It is possible to install larger garage doors to give.
This is the additional height your garage door will open.
Cut two new trimmers to the height of the new door with a circular saw.
I live in northern new jersey.