Frame the rough opening for the garage door to 3 inches wider than the garage door you have selected.
Garage door frame out.
Woodworkers prefer it because they are lightweight effortless to cut stain and hit a nail into.
Header requirement 2 at minimum the header should be 12 wide with doubled 2 4 at opening and ceiling running the width of the door with a 2 4 in the center of the opening for the center bracket to attach to.
The pale yellowish look of pine also gives it an extra edge and something to consider.
In some designs a piece of finish lumber or trim attaches across the underside.
Cut four 2 x 4 trimmers to this length and nail two each to either side of the rough opening.
If you are installing a 9 wide door the opening will be 9 3 wide.
Header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening.
Frame the rough opening to 3 inches wider than the garage door size you have selected.
How to measure the finished width and height use of 2x4s for the sides and header.
If the door is 7 tall frame the opening 7 1 5.
By william machin a garage door jamb runs from the floor to the underside of the header at each side of the opening.
How to frame a garage doors opening in this case 9ft wide by 8ft tall.
Frame the rough opening to a height that is 1 5 taller than the door that you have selected.
They are also rot resistant which means it will take decades to breakdown.