8 Garage Door Header Size

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8 garage door header size.

Many homeowners have two cars and need garage space to shelter them both. And that s with a 7 12 hip roof avg. I ve even seen 2 1 3 4 x12 lvl headers in a 2x4 garage door wall sag while we were framing the house. With a row of four 12d nails.

Cut a 2 x 6 piece of lumber and nail to the face of wall exactly in the center of the garage header. The standard size for double garage doors is 16 feet wide and 7 to 8 feet high. Use 2x4 with a double jack under each end of the header. Normal for swing doors is 2 1 2 over nominal width and height.

If the opening will be 5 to 6 feet wide such as for double doors then you will need two 2 by 10 headers. 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. 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. Microlams for garage door headers nailed every 12 in.

Frame the garage door at the nominal size of 9x7. 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. This piece of. I have seen too many garage door openings sagging after 10 15 years.

When in doubt use 2 by 12 inch headers. 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. Measure the width of your door frame. Window door garage door headers supporting roof loads only.

When i frame for any header at six feet up to eight feet i will dbl. Window door garage door headers supporting roof wall floor loads. The beam they have specified now is 3 1 2 x 12 x 18 9. Most door frames that are 4 feet wide or less require a 2 by 6 header.

If there isn t enough room above the opening this can t be done without raising the roof of the garage. If you want to build it right go with the lvls. Attach lumber to the face of the garage wall to the edge of the garage door header. 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.

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. 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. 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. The person doing the takeoff had interpreted my request for an 18 9 garage door header to the least expensive 20 long beam.