18 Ft 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.

18 ft garage door header. In all but the most bizarre situations they ll easily carry the weight for 4 ft. Many homeowners have two cars and need garage space to shelter them both. Also see assumptions for table development. Window door garage door headers supporting roof loads only.

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. Measure the width of your door frame. 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. For single car garages include 8 x 7 ft 8 8 ft 8 9 ft 9 8 ft 10 7 ft and 10 8 ft.

For each application a pdf download is available. 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. There are a few sizes of doors that are considered standard.

When in doubt use 2 by 12 inch headers. Window door garage door headers supporting roof wall floor loads. 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 procedure for constructing a header for 6 inch exterior wall framing can be modified for any wall thickness.

Wide a common patio door width. Wide window and door openings and in most situations be code compliant for openings up to 6 ft. Loading conditions are detailed below. The beam they have specified now is 3 1 2 x 12 x 18 9.

Usually 18 ft door used to accommodate two vehicles in the garage. Calculating header size is no picnic as you learn how to frame a window. The standard size for double garage doors is 16 feet wide and 7 to 8 feet high.