Cut the header from 2 x 12 lumber and to a length of the rough opening plus 6 inches.
Rough opening garage door framing diagram.
A rough opening refers to the space left inside a door or window frame door in this case where the actual door will be fitted.
This diagram is not intended as designs for building a new garage it shows the minimum framing needs for the installation of an overhead style garage door.
After installing the jambs your garage door opening should now be the same size as the garage door.
Ordering a garage door based on a rough opening size can leave you with a door that is too big.
It is the owner and or the owners contractor to prepare the opening for the garage door.
This wall contains the rough opening for the man door.
Install the header on top of the trimmers and nail.
Nail or screw 2 x 6 jambs to the framing on the top first and then the sides of the rough opening.
The diagram below shows one of the long garage walls that will be needed.
Notice that the wall framing dimension is 1 shorter than our overall length of 24.
In our business we refer to rough openings as the size of the opening before the finished lumber has been added to the jambs.
To make my.
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.
It s essential to get this measurement right else your newly purchased garage door won t fit the opening or might actually be smaller than the opening.