Garage Door Header Span Calculator

Span charts and 2012 irc building codes for girders and headers.

Garage door header span calculator.

According to the 2012 irc codes any beam joist or header shall never have a bearing of less than 1 1 2. Some sizes may not be available in your region. Porch header sizing header size load bearing wall wewontbyte garage door header sizes orange01 co wood beam sizing wood beam sizes premiumpsds co wood beam sizingporch header sizingwood beam sizingheader. Most door frames that are 4 feet wide or less require a 2 by 6 header.

Engineered wood products ewp lvl span and size charts. Window door garage door headers supporting roof wall floor loads. Select the span carried by the beam across the top of the table. Anything 5 and above we always at least double cripple.

These charts are for 30 pound per square foot snow load on the roof. Click on the appropriate beam this will take you to the calculation table for your project. Using the continuous span floor joists table with 30 0 span carried select either 3 1 2 x 11 1 4 or 5 1 4 x 9 1 4. Measure the width of your door frame.

Includes span tables for all load bearing locations and the number of jack studs. Window and door. 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. Read the beam size or choice of beam sizes from the table.

Versa lam laminated veneer lumber lvl beams and headers eliminate twisting shrinking and splitting and deliver flatter quieter floors and structures. On longer spans the beam may require much more bearing space as indicated by this table. Determine the beam header span length and the span carried supported by the beam header. The column on the left of each chart labeled beam span represents the beam length with bearing required for your project.

A beam with a 10 span carries 15 0 simple span joists on each side. When in doubt use 2 by 12 inch headers. Beams of more than one ply must be fastened together with either nails or bolts. Header details 24 25 nailing on narrow face 25 allowable holes 26 bearing length requirements 26 tapered end cuts 27 multiple member.

Connections 28 29 columns 30 31 product warranty 32. All other data is available on page 121 of the 2012 international residential code. 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.