However if you intend operating with a garage door opener 14 inches of headroom is recommended.
Put header in for garage door.
Last pull a measurement from the top of the 2 x 6 piece of lumber that you just installed to the ceiling of the garage.
Cut three pieces of 1 inch by 11 inch lumber to the width measurement of the garage door rough opening plus 12.
Lay a single piece of the 1 inch by 11 inch lumber cut in.
Wide by 16 in.
Cut a 2 x 6 piece of lumber and nail to the face of wall exactly in the center of the garage header.
They are typically 31 2 in.
Header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening.
Push the new header into place.
Together the headers king studs and trimmers act as a system that transfers weight from above down and around the window and door openings to the floor and foundation below.
This allows the header to take the weight of your wall.
This header should be an inch and a half higher than the garage door and 9 inches wider than the door.
The standard headroom for garage doors is 12 inches.
The parallam beams used as headers atop simpson garage door walls are heavy.
I don t want to move one of these beams around any more than i have to.
Carefully measure the length of your door as the header must be at least 9 inches longer than that and at least 1 1 2 inches higher than the door.
Rip 11 inch wide strips of inch plywood using a circular saw.
Go to your local building office and ask about the dimensions of the garage door header.
Attach lumber to the face of the garage wall to the edge of the garage door header 7.
On my last job i didn t even take it off my truck s lumber rack.
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.
If you are only opening the door manually that is enough headroom.
The king studs nailed into the end of each header and the trimmers that butt just under the header combine to create a sturdy vertical support column.
How to build a garage door header step 1.