Frame the rough opening to a height that is 1 5 taller than the door that you have selected.
Garage door header detail.
You get the picture.
Portal frame details within the irc specify simple span headers with a maximum finished opening width of 18.
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.
Choose from carriage house traditional and commercial garage doors in steel wood and wood composite materials.
If it s 9ft the opening must be 9ft 3 inches and so on.
If the door is 7 tall frame the opening 7 1 5.
For instance if the width of the garage door is 8ft the rough opening should be 8ft 3 inches wide.
Header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening.
To finish the opening cut the header and jambs from 2 lumber.
For deeper depth parallam.
Depending on your opening the lumber width will be 6 to 8 wide.
Amarr offers 300 styles of garage doors.
Header details 24 25 nailing on narrow face 25 allowable holes 26 bearing length requirements 26 tapered end cuts 27 multiple member connections 28 29 columns 30 31 product warranty 32 some sizes may not be available in your region.