Garage Door Header Size Chart

Header spans are typical for a window and a patio door.

Garage door header size chart.

And the garage door header is based on a 2 car garage door opening. 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 structural ridge span represents the size of a large family room. 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.

No matter what the specs say. The span for the girder is based on the size of an average sized game room. 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 home builders do not consider this a structural necessity but a style and price choice for the homeowner.

The clever way i used to build headers. Many homeowners have two cars and need garage space to shelter them both. Span charts and 2012 irc building codes for girders and headers. When in doubt use 2 by 12 inch headers.

Anything 5 and above we. Window door garage door headers supporting roof loads only. According to the 2012 irc codes any beam joist or header shall never have a bearing of less than 1 1 2. My first job as a carpenter s helper was to construct headers for the tract houses we were building.

Table 1 consolidates loading sizes and cost data for all of the applications. These charts are for 30 pound per square foot snow load on the roof. All other data is available on page 121 of the 2012 international residential code. Measure the width of your door frame.

The standard size for double garage doors is 16 feet wide and 7 to 8 feet high. Header size required to support the roof ceiling and one center bearing floor of a 28 ft. Most door frames that are 4 feet wide or less require a 2 by 6 header. The right 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.