Garage Door Header Size Calculator

Measure the width of your door frame.

Garage door header size calculator.

Anything 5 and above we always at least double cripple. Click on the appropriate beam this will take you to the calculation table for your project. The column on the left of each chart labeled beam span represents the beam length with bearing required for your project. 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.

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. Window door garage door headers supporting roof loads only. Determine the beam header span length and the span carried supported by the beam header. When in doubt use 2 by 12 inch headers.

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. Most door frames that are 4 feet wide or less require a 2 by 6 header. Window door garage door headers supporting roof wall floor loads. According to the 2012 irc codes any beam joist or header shall never have a bearing of less than 1 1 2.

On longer spans the beam may require much more bearing space as indicated by this table. How to calculate header beam size january 18 2020 by arfan leave a comment how to remove a wall load bearing or not and install header beamchek 2016 structural ering column how to replace a load bearing wall with support beam garage door header sizes orange01 co structural support beam design basic belmar nj.