Garage Door Header Spans

Select product size for the appropriate grade clear opening and span of supported roof framing.

Garage door header spans. Portal frame details within the irc specify simple span headers with a maximum finished opening width of 18. Includes span tables for all load bearing locations and the number of jack studs. These small areas are usually door opening on the interior and people are trained that these areas are the strongest place in a house to be in the case of an emergency. The structural ridge span represents the size of a large family room.

Window door garage door headers supporting roof loads only. 11 run 20 year shingles and no snow load whatsoever. Span charts and 2012 irc building codes for girders and headers. I got a great deal on a 10 foot wide by 7 foot tall roll up door.

Header spans are typical for a window and a patio door. I have seen too many garage door openings sagging after 10 15 years. I am wanting to add a divider wall in my garage to separate a work space from the parking area. Window door garage door headers supporting roof wall floor loads.

Into the header that equals or exceeds the intended application. When in doubt use 2 by 12 inch headers. If you want to build it right go with the lvls. Correct does not state that header 6 to 18 can be dimensional lumber.

These charts are for 30 pound per square foot snow load on the roof. And that s with a 7 12 hip roof avg. I framed my basement when finishing it but nothing this wide. The span for the girder is based on the size of an average sized game room.

That would take care of the wind and seismic shear loads. Measure the width of your door frame. All other data is available on page 121 of the 2012 international residential code. In an attempt to construct portal frames some garages are built with one continuous garage header extending over two or three garage door openings as shown in figure a.

And the garage door header is based on a 2 car garage door opening. Notes for tables 1 6. Find the clear opening that equals or exceeds the intended application. Only that the minimum net header size shall be 3 x ll 25.

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. All documentation i have found on header sizing refers to load bearing walls. Bearing according to the 2012 irc codes any beam joist or header shall never have a bearing of less than 1 1 2. Most door frames that are 4 feet wide or less require a 2 by 6 header.

Table 1 consolidates loading sizes and cost data for all of the applications. 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.