Garage Door Header Span Calculator

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

Garage door header span calculator. 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. Beams of more than one ply must be fastened together with either nails or bolts. Measure the width of your door frame.

These charts are for 30 pound per square foot snow load on the roof. Read the beam size or choice of beam sizes from the table. Engineered wood products ewp lvl span and size charts. 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. Most door frames that are 4 feet wide or less require a 2 by 6 header. Anything 5 and above we always at least double cripple. On longer spans the beam may require much more bearing space as indicated by this table.

Select the span carried by the beam across the top of the table. Connections 28 29 columns 30 31 product warranty 32. Click on the appropriate beam this will take you to the calculation table for your project. Window door garage door headers supporting roof wall floor loads.

All other data is available on page 121 of the 2012 international residential code. 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. 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. Versa lam laminated veneer lumber lvl beams and headers eliminate twisting shrinking and splitting and deliver flatter quieter floors and structures.

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. Window door garage door headers supporting roof loads only. 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. 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.

Includes span tables for all load bearing locations and the number of jack studs. Some sizes may not be available in your region. For deeper depth parallam psl beams see the trus joist 2 2e parallam psl.