Steel Beam Garage Door Header

Most door frames that are 4 feet wide or less require a 2 by 6 header.

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

Measure the width of your door frame. 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. And the garage door header is based on a 2 car garage door opening.

Attach lumber to the face of the garage wall to the edge of the 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. Header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening. The span for the girder is based on the size of an average sized game room.

The person doing the takeoff had interpreted my request for an 18 9 garage door header to the least expensive 20 long beam. What size and guage of steel i beam do i need for a garage header. When in doubt use 2 by 12 inch headers. Header spans are typical for a window and a patio door.

Opening is 18 ft wide and beam will rest on 2 18 by 18 posts. 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. The structural ridge span represents the size of a large family room.