When in doubt use 2 by 12 inch headers.
Garage door header size calculator.
Garage door header size benjaminremodeling co.
Posted on october 29 2019 by bandi ruma.
It went like this.
Click on the appropriate beam this will take you to the calculation table for your project.
The sum will be the height of your double header in inches.
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.
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.
Window door garage door headers supporting roof wall floor loads.
Window door garage door headers supporting roof loads only.
The column on the left of each chart labeled beam span represents the beam length with bearing required for your project.
Determine the beam header span length and the span carried supported by the beam header.
Wood beam design and installation no headers in nonbearing walls code notes window headers and door garage door header size headroom door frame and calculation.
On longer spans the beam may require much more bearing space as indicated by this table.
Measure the width of your door frame.
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.
Garage door header size calculator.
For example if the span is 4 feet add 2 to 4 for a sum of 6.
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