Garage Door Header Span Calculator

Most door frames that are 4 feet wide or less require a 2 by 6 header.

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. Determine the beam header span length and the span carried supported by the beam header. All other data is available on page 121 of the 2012 international residential code. On longer spans the beam may require much more bearing space as indicated by this table.

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. For deeper depth parallam psl beams see the trus joist 2 2e parallam psl. Connections 28 29 columns 30 31 product warranty 32. Window door garage door headers supporting roof loads only.

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. Click on the appropriate beam this will take you to the calculation table for your project. Our versa lam lvl is manufactured in either alexandria lena louisiana in eastern united states or in white city oregon for the western united states. Versa lam laminated veneer lumber lvl beams and headers eliminate twisting shrinking and splitting and deliver flatter quieter floors and structures.

Header details 24 25 nailing on narrow face 25 allowable holes 26 bearing length requirements 26 tapered end cuts 27 multiple member. Engineered wood products ewp lvl span and size charts. Some sizes may not be available in your region. Span charts and 2012 irc building codes for girders and headers.

Read the beam size or choice of beam sizes from the table. Window and door. Select the span carried by the beam across the top of the table. 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.

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. These charts are for 30 pound per square foot snow load on the roof. The column on the left of each chart labeled beam span represents the beam length with bearing required for your project. When in doubt use 2 by 12 inch headers.

Anything 5 and above we always at least double cripple. Includes span tables for all load bearing locations and the number of jack studs. A beam with a 10 span carries 15 0 simple span joists on each side.