Steel Beam Garage Door Header

Measure the width of your door frame.

Steel beam garage door header.

On previous projects i have been supplied a glu lam boise makes specifically for garage door headers that was 3 1 2 x 11 1 4 x 18 9. In an attempt to construct portal frames some garages are built with one continuous garage header extending over two or three garage door openings as shown in figure a. Header spans are typical for a window and a patio door. The beam they have specified now is 3 1 2 x 12 x 18 9.

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. Header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening. Most door frames that are 4 feet wide or less require a 2 by 6 header. Cut a 2 x 6 piece of lumber and nail to the face of wall exactly in the center of the garage header.

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. Portal frame details within the irc specify simple span headers with a maximum finished opening width of 18. The structural ridge span represents the size of a large family room. What size and guage of steel i beam do i need for a garage header.

When in doubt use 2 by 12 inch headers. And the garage door header is based on a 2 car garage door opening. This piece of. Attach lumber to the face of the garage wall to the edge of the garage door header.

The only added weight on the header will be 4 by 8 joists 3 4 plyw read more. Between 4 and 5 feet the header should be built 2 inches wide and 8 inches long while a larger opening needs a header that is 2 by 12. Opening is 18 ft wide and beam will rest on 2 18 by 18 posts.