If you are installing a 9 wide door the opening will be 9 3 wide.
Garage door frame out.
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 door 1.
Frame the rough opening to a height that is 1 5 taller than the door that you have selected.
Pine is an excellent choice for a garage door frame.
They are also rot resistant which means it will take decades to breakdown.
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.
Frame the rough opening for the garage door to 3 inches wider than the garage door you have selected.
How to measure the finished width and height use of 2x4s for the sides and header.
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.
The pale yellowish look of pine also gives it an extra edge and something to consider.
How to frame a garage doors opening in this case 9ft wide by 8ft tall.
Woodworkers prefer it because they are lightweight effortless to cut stain and hit a nail into.