Just add 2 to the width of the actual door size.
Rough opening for 9 x 9 garage door.
If you are installing a 9 wide door the opening will be 9 3 wide.
Nail or screw 2 x 6 jambs to the framing on the top first and then the sides of the rough opening.
Measure the width and height 1 and 2 of your door opening in feet and inches to determine the garage door size you need.
New construction frequently offers 9 x 7 garage doors but increasingly offers door widths of 10 feet.
The rough opening should be the same size as the door.
Single garage doors can be small enough for golf carts or large enough for tractors depending on your home or community for most homes the standard single car garage door is 8 to 9 feet wide and 7 to 8 feet high.
Framing rough opening sizes are really quite simple.
Width of garage door opening standard widths are 8 9 10 12 14 16 17 and 18 height of the garage door opening standard residential heights are 7 7 6 8 header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening.
You should add 2 1 2 to the height of the actual door.
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.
Take these measurements to your local installing dealer or retailer to purchase the clopay garage door that is right for you.
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.
Standard garage doors in our area are 8 9 16 and 18 wide.
99 of the residential garage doors that we run across are different than these widths.
Cut the header from 2 x 12 lumber and to a length of the rough opening plus 6 inches.
Getting the rough opening size right the first time will save you from frustration when installing your doors.
Next you will need to know your door height.
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.
9 3 wide for the width and 7 11 2 for the height.
Install the header on top of the trimmers and nail.
This will give you room to space the door frame off of the sub floor.
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 or 6 boards.
Frame the rough opening to a height that is 1 5 taller than the door that you have selected.
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.
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.