Headers should be a minimum of 12 wide.
How to frame up a garage door opening.
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.
Measure the rough opening to see if it is the correct size.
If you are installing a 9.
Make the opening the width of the door plus 2 inches 5 1 cm and if additional studs are needed a space for these as.
If the door is 7.
Adding one course of block to a slab keeps the garage door framing farther up from the ground which may be necessary depending on the grade.
Measure your door carefully and cut the opening to fit using a reciprocating saw.
Cut the header from 2 x 12 lumber and to a.
To finish the opening.
How to frame a garage door 1.
Frame the rough opening for the garage door to 3 inches wider than the garage door you have selected.
Frame the rough opening to a height that is 1 5 taller than the door that you have selected.
For example if the door is eight feet wide and the rough opening is eight foot four inches the jambs will be set with a two inch overhang on each side.
Doubled 2 4 s at minimum should be at each edge of the garage door to allow for the mounting of the tracks and jamb brackets.
Pouring just a slab with a thickened perimeter is the least expensive and a perfectly acceptable option if you have good soil conditions not spongy.
Frame the rough opening to 3 inches wider than the garage door size you have selected.