Next you will need to know your door height.
Garage door rough opening for 9x7 door.
If you are installing a 9 wide door the opening will be 9 3 wide.
For instance if the width of the garage door is 8ft the rough opening should be 8ft 3 inches wide.
1 2 or 1 in one direction of the other will won t typically cause you to have to shop for a non standard garage door size.
However if you are putting bricks thick river rock stones marble or anything else on both sides that is more than 1 thick you will want the rough opening the same.
You get the picture.
Therefore making the width of the garage door rough opening the same size as the door would be fine if you are going to use a thin layer of stucco vinyl siding or 1 by lumber.
Standard garage doors in our area are 8 9 16 and 18 wide.
The width of the rough opening should be 3 inches greater than the width of the garage door you are purchasing.
Step 1 measure the old door if you are replacing an existing door with one of the same size or the new door of choice if you are building a new garage.
If the door is 7 tall frame the opening 7 1 5.
Frame the rough opening to 3 inches wider than the garage door size you have selected.
Frame the rough opening to a height that is 1 5 taller than the door that you have selected.
99 of the residential garage doors that we run across are different than these widths.
9 3 wide for the width and 7 11 2 for the height.