Wide window and door openings and in most situations be code compliant for openings up to 6 ft.
18 ft garage door header.
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.
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.
Window door garage door headers supporting roof wall floor loads.
Many homeowners have two cars and need garage space to shelter them both.
Usually 18 ft door used to accommodate two vehicles in the garage.
The beam they have specified now is 3 1 2 x 12 x 18 9.
The standard size for double garage doors is 16 feet wide and 7 to 8 feet high.
Loading conditions are detailed below.
Window door garage door headers supporting roof loads only.
For each application a pdf download is available.
Wide a common patio door width.
Also see assumptions for table development.
Measure the width of your door frame.
18 ft garage door is the size that is suitable for you who have a oversized garage.
Many home builders do not consider this a structural necessity but a style and price choice for the homeowner.
The person doing the takeoff had interpreted my request for an 18 9 garage door header to the least expensive 20 long beam.
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.
Calculating header size is no picnic as you learn how to frame a window.
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.
In all but the most bizarre situations they ll easily carry the weight for 4 ft.
Many 16 x 7 garage doors will be designed with a pair of single 8 foot garage door bays separated by a central post or column.
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.
The procedure for constructing a header for 6 inch exterior wall framing can be modified for any wall thickness.
