Steel Beam Garage Door Header

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.

Steel beam garage door header.

And the garage door header is based on a 2 car garage door opening. Header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening. Table 1 consolidates loading sizes and cost data for all of the applications. 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.

This piece of. Measure the width of your door frame. Attach lumber to the face of the garage wall to the edge of the garage door header. Portal frame details within the irc specify simple span headers with a maximum finished opening width of 18.

The beam they have specified now is 3 1 2 x 12 x 18 9. When in doubt use 2 by 12 inch headers. 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. The only added weight on the header will be 4 by 8 joists 3 4 plyw read more.

The person doing the takeoff had interpreted my request for an 18 9 garage door header to the least expensive 20 long beam. Most door frames that are 4 feet wide or less require a 2 by 6 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. Opening is 18 ft wide and beam will rest on 2 18 by 18 posts.

The structural ridge span represents the size of a large family room. 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. The span for the girder is based on the size of an average sized game room.