Frame the rough opening to 3 inches wider than the garage door size you have selected.
How to frame a 16 ft garage door.
Frame the rough opening for the garage door to 3 inches wider than the garage door you have selected.
If you are installing a 9 wide door the opening will be 9 3 wide.
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.
Cut four 2 x 4 trimmers to this length and nail two each to either side of the rough opening.
How to measure the finished width and height use of 2x4s for the sides and header.
Leave at least 5 of space on the sides of the door.
Make sure the jambs are plumb by using a six foot level.
After they are plumb finish nailing the jamb board securely to the frame.
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.
I ll explain the process more extensively as we proceed.
How to frame a garage doors opening in this case 9ft wide by 8ft tall.
Using 16 penny nails attach the jamb boards at the top and bottom.