Make a header by fitting two 2 x 8s around a 1 2 inch piece of plywood.
Garage door frame construction.
Toenail the cripple stud to the top plate and the side of the header.
Frame the rough opening for the garage door to 3 inches wider than the garage door you have selected.
Make the rough opening 3 wider than the garage door.
If you are installing a 9 wide door the opening will be 9 3 wide.
There will usually be a very narrow gap at the back of your garage and a much wider gap at the front of the garage next to your garage door.
Back framing the garage door first the inside vertical jambs are lined with wood to mount the track to.
This is a crucial step to perform if you have plans of purchasing a new garage door or even replacing an existing one.
How to frame a garage doors opening in this case 9ft wide by 8ft tall.
This is usually done by fastening two 2 6 s to the back of the frame from the floor to as high as the hardware will go to.
If you are installing a 9 wide door the opening will be 9 3 wide.
Cut four 2 x 4 trimmers to this length and nail two each to either side of the rough opening.
How to frame a garage door 1.
For example at the very back of my garage i could secure the frame directly to the joist above.
How to measure the finished width and height use of 2x4s for the sides and header.
Install a cripple stud between the header and the top plate halfway between the king studs.
It is common to need different widths of wood as spacers between the top of the frame and the ceiling.
Cut the header to fit between the king studs.
Also make the rough opening 1 5 taller than the garage door.
Then this article is for you.
For standard hardware this is usually around 18 inches above the header.
Frame the rough opening to 3 inches wider than the garage door size you have selected.