This will give you room to space the door frame off of the sub floor.
Rough in size for 9x7 garage door.
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.
You should add 2 1 2 to the height of the actual door.
Measure the width and height 1 and 2 of your door opening in feet and inches to determine the garage door size you need.
For instance if the width of the garage door is 8ft the rough opening should be 8ft 3 inches wide.
The rough opening should be the same size as the door.
If the door is 7 tall frame the opening 7 1 5.
Standard garage doors in our area are 8 9 16 and 18 wide.
You get the picture.
Favorite answer 9 3 wide for the width and 7 11 2 for the height.
Getting the rough opening size right the first time will save you from frustration when installing your doors.
If you are installing a 9 wide door the opening will be 9 3 wide.
This would allow you to frame and wrap and apply the door seal around the outside of the door after it is installed with 2 x 4.
After installing the jambs your garage door opening should now be the same size as the garage door.
The width of the rough opening should be 3 inches greater than the width of the garage door you are purchasing.
Some materials might be much heavier.
99 of the residential garage doors that we run across are different than these widths.
Frame the rough opening to a height that is 1 5 taller than the door that you have selected.
Section 8 x 8 24 gauge steel door with tracks and all accessories might weight from couple to a few hundred pounds.
Framing rough opening sizes are really quite simple.
Install the header on top of the trimmers and nail.
Just add 2 to the width of the actual door size.
How heavy garage door is.
Next you will need to know your door height.
The rough opening is equal to the size of the door but you need to figure back head and side room before choosing and installing the new garage door.
Some garage door sizes usually wider or higher might be restricted from use in certain areas.
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.
Nail or screw 2 x 6 jambs to the framing on the top first and then the sides of the rough opening.
Frame the rough opening to 3 inches wider than the garage door size you have selected.
Weight of garage door might be important for a shipping purpose.
If it s 9ft the opening must be 9ft 3 inches and so on.
Cut the header from 2 x 12 lumber and to a length of the rough opening plus 6 inches.