After this you just need to bring in the opening size to the exact size of the garage door.
Rough in for 9x7 garage door.
The width of the rough opening should be 3 inches greater than the width of the garage door you are purchasing.
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.
Next your rough opening height should be 1 5 inches taller than the door.
Back framing the garage door.
Measure the distance from the bottom plate of the wall to a point that is 1 1 2 inches higher that the garage door height.
So if your door is 9ft wide your rough opening should be 9ft 3 inches.
The garage door rough opening.
The rough opening of a garage door should be 3 inches wider than the door itself.
For residential homes 99 of doors are either exactly 7 or 8 tall.
If it s 9ft the opening must be 9ft 3 inches and so on.
Additional back room may be required for automatic garage door.
Measure area labeled backroom 6 distance is measured from the garage door opening toward the back wall of the garage.
For instance if the width of the garage door is 8ft the rough opening should be 8ft 3 inches wide.
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.
You get the picture.
Frame the rough opening to a height that is 1 5 taller than the door that you have selected.
If the door is 7 tall frame the opening 7 1 5.
If garage door height extends above the opening the headroom measurement should be adjusted proportionately.
When pricing your door you will need to price a garage door exactly the size of the opening so when calling around for price points be sure that you have this information in hand.
Door height plus 18 is required.
Standard garage doors start at 7 tall and increase in increments of one foot.
Cut four 2 x 4 trimmers to this length and nail two each to either side of the rough opening.
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.
These trimmers should be.
Frame the rough opening for the garage door to 3 inches wider than the garage door you have selected.