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.
How to build a header for garage door.
16d sinker or box of nails.
Install the header jambs and center pad of the frame using a 2 x 6 lumber for the header jambs and center pad leave at least 5 of space on the sides of the door.
You need at least 2 rows of wood to hold up the header on each side making up 4 studs on each half of the header.
When in doubt build a double 2 12 header sandwich like we explain next.
If you are looking to save money on getting door headers you can use materials that you may already have on hand and do it yourself instead of hiring someone to do it for you.
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.
1 2 inch cdx plywood.
Calculating header size is no picnic as you learn how to.
How to measure the finished width and height use of 2x4s for the sides and header.
I suggest you go through the entire article at least once before you start.
To finish the opening cut the header and jambs from 2 lumber.
In all but the most bizarre situations they ll easily carry the weight for 4 ft.
Around the sides of your door add enough lumber to support the weight of the garage door header.
The procedure for constructing a header for 6 inch exterior wall framing can be modified for any wall thickness.
Depending on your opening the lumber width will be 6 to 8 wide.
If the door is 7 tall frame the opening 7 1 5.
Local and national building codes have specific structural requirements pertaining to beam sizes to span specific wall openings relative to the wall loads so consult your local building department before beginning this.
Building a structural header for a garage door opening can be handled on the jobsite and will offer the same structural support as more expensive solid wood beams.
Frame the rough opening to a height that is 1 5 taller than the door that you have selected.