Measure area labeled backroom 6 distance is measured from the garage door opening toward the back wall of the garage.
Garage door framing opening size 8 x 6 6.
Nail or screw 2 x 6 jambs to the framing on the top first and then the sides of the rough opening.
Classic collection series 8 ft.
Ideally 2 x6 is the most used header size.
If you are installing a 9 wide door the opening will be 9 3 wide.
Door height plus 18 is required.
After installing the jambs your garage door opening should now be the same size as the garage door.
6 3 r value insulated white garage door 2 layer 25 gauge steel frame construction with insulation raised panel details provide a classic look.
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.
Additional back room may be required for automatic garage door.
Frame the rough opening to 3 inches wider than the garage door size you have selected.
If you are installing a 9 wide door the opening will be 9 3 wide.
Use 2 inch lumber for the jambs as well and ensure they are appropriately nailed to the door opening with the help of a nail gun or hammer.
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.
So if you have a bedroom door that is 30 wide which is considered a 2 6 or 2 6 door just add 2 to the width and frame it 32 wide.
Framing nails are highly recommended.
The height is 80 which is considered 6 8 or 6 8 add 2 1 2 to the actual door height and frame it 82 1 2 high.
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.
The height of the rough opening would be the height of the garage door plus the thickness of whatever you are putting underneath the header in addition to the thickness of.
If garage door height extends above the opening the headroom measurement should be adjusted proportionately.
The width of the lumber should be between 6 and 8.
Cut the header from 2 x 12 lumber and to a length of the rough opening plus 6 inches.