Steel Beam Garage Door Header

Opening is 18 ft wide and beam will rest on 2 18 by 18 posts.

Steel beam garage door header. The beam they have specified now is 3 1 2 x 12 x 18 9. 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. When in doubt use 2 by 12 inch headers.

Nail each ply of a beam with a minimum of 10d nails. Attach lumber to the face of the garage wall to the edge of the 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. The bottom of any beam may be notched only on its end.

The notch can not exceed 25 of the width of the board. Use two nails on each end and at splices. Stagger the rest of the nails 32 o c. The only added weight on the header will be 4 by 8 joists 3 4 plyw read more.

What size and guage of steel i beam do i need for a garage header. This piece of. 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. 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.

The beam is 8 wide and 8 deep. You will need to have a local engineer detail your connections size your column supports and determine foundation requirements. The person doing the takeoff had interpreted my request for an 18 9 garage door header to the least expensive 20 long beam. That would take care of the wind and seismic shear loads.

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 for exterior walls on buildings 20 wide. 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.