Steel Beam Garage Door Header

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.

Steel beam garage door header.

The span for the girder is based on the size of an average sized game room. Header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening. Cut a 2 x 6 piece of lumber and nail to the face of wall exactly in the center of the garage header. When in doubt use 2 by 12 inch headers.

The only added weight on the header will be 4 by 8 joists 3 4 plyw read more. 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. 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. Portal frame details within the irc specify simple span headers with a maximum finished opening width of 18.

The person doing the takeoff had interpreted my request for an 18 9 garage door header to the least expensive 20 long beam. 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. 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.

What size and guage of steel i beam do i need for a garage header. Table 1 consolidates loading sizes and cost data for all of the applications. Most door frames that are 4 feet wide or less require a 2 by 6 header. This piece of.

And the garage door header is based on a 2 car garage door opening. The beam they have specified now is 3 1 2 x 12 x 18 9. Header spans are typical for a window and a patio door.