8 Garage Door Header Size

Window door garage door headers supporting roof wall floor loads.

8 garage door header size. Tables providing size selections for various beam spans and loading combinations for southern pine dimension lumber and southern pine glued laminated timber are available for the following applications. When in doubt use 2 by 12 inch headers. Jack it if the header is eight feet or over i will triple jack it probably doesnt need that much but thats the way that i like to do it. Many home builders do not consider this a structural necessity but a style and price choice for the homeowner.

The span above the door opening is framed with a long header that supports the wall area above the door and this header will need to be raised or rebuilt in order to increase the overall door size. Most door frames that are 4 feet wide or less require a 2 by 6 header. 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. With a row of four 12d nails.

And that s with a 7 12 hip roof avg. Use 2x4 with a double jack under each end of the header. If you are creating an opening no wider than 4 feet for a door or smaller window then you need a 2 by 6 header. I ve even seen 2 1 3 4 x12 lvl headers in a 2x4 garage door wall sag while we were framing the house.

The beam they have specified now is 3 1 2 x 12 x 18 9. If there isn t enough room above the opening this can t be done without raising the roof of the garage. Many homeowners have two cars and need garage space to shelter them both. If you are putting in an opening between 4 and 5 feet wide then you ll need two 2 by 8 headers.

I have seen too many garage door openings sagging after 10 15 years. The person doing the takeoff had interpreted my request for an 18 9 garage door header to the least expensive 20 long beam. Garage door header lately we have been using 14 in. 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.

When i frame for any header at six feet up to eight feet i will dbl. If the opening will be 5 to 6 feet wide such as for double doors then you will need two 2 by 10 headers. Window door garage door headers supporting roof loads only. 11 run 20 year shingles and no snow load whatsoever.

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. Microlams for garage door headers nailed every 12 in. 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.

Cut a 2 x 6 piece of lumber and nail to the face of wall exactly in the center of the garage header. If you want to build it right go with the lvls. Normal for swing doors is 2 1 2 over nominal width and height. This piece of.