18 Ft Garage Door Header

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.

18 ft garage door header.

The standard size for double garage doors is 16 feet wide and 7 to 8 feet high. 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. Many homeowners have two cars and need garage space to shelter them both. 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. For each application a pdf download is available. Many home builders do not consider this a structural necessity but a style and price choice for the homeowner. Wide a common patio door width.

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. The procedure for constructing a header for 6 inch exterior wall framing can be modified for any wall thickness. The beam they have specified now is 3 1 2 x 12 x 18 9. 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.

Measure the width of your door frame. Window door garage door headers supporting roof wall floor loads. Wide window and door openings and in most situations be code compliant for openings up to 6 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.

Window door garage door headers supporting roof loads only. Also see assumptions for table development. When in doubt use 2 by 12 inch headers. Calculating header size is no picnic as you learn how to frame a window.

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. Usually 18 ft door used to accommodate two vehicles in the garage.