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.
18 garage door header framing.
Portal frame details within the irc specify simple span headers with a maximum finished opening width of 18.
All of the rough framing has just been completed.
The beam they have specified now is 3 1 2 x 12 x 18 9.
Window door garage door headers supporting roof wall floor loads.
Door garage door headers supporting roof loads only.
Building a structural header for a garage door opening can be handled on the jobsite and will offer the same structural support as more expensive solid wood beams.
All all all all all all.
Together the headers king studs and trimmers act as a system that transfers weight from above down and around the window and door openings to the floor and foundation below.
Most door frames that are 4 feet wide or less require a 2 by 6 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.
Several garage door people have told me they want 18.
1 15 1 15 1 15 1 15 1 25 1 25.
10 10 10 10 10 20.
The procedure for constructing a header for 6 inch exterior wall framing can be modified for any wall thickness.
If this is going to be a problem i guess we could lower the height of the opening for the door 6 and use a 7 6 high garage door.
Width of garage door opening standard widths are 8 9 10 12 14 16 17 and 18 height of the garage door opening standard residential heights are 7 7 6 8 header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening.
The person doing the takeoff had interpreted my request for an 18 9 garage door header to the least expensive 20 long beam.
The longer the distance a header spans and the heavier the load it supports the more substantial it needs to be.
Measure the width of your door frame.
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.