Wood Beam Span Tables Canada

A double 2x12 beam can span 12 feet.

Wood beam span tables canada.

The span book is a supplement to the wood joist rafter and beam spans found in the national building code of canada. According to the 2012 irc codes any beam joist or header shall never have a bearing of less than 1 1 2. Also available for the android os. The full table shows more lumber sizes.

When supporting joists that span 12 feet with no overhang beyond the beam a double ply beam can span in feet a value equal to its depth in inches. This span table excerpt shows two possible sizes of built up floor beams 2 x 10 and 2 x 12. Although all possible efforts have been made to ensure that the information from this tool is accurate the cwc cannot guarantee the completeness accuracy or exactness of the information. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads.

The numbers in gray indicate the distance between the support posts. Tables a 1 to a 16 cover only the most com mon. Tables in the span book and the national building code were both generated by the canadian wood council. Allowable load tables 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.

Beam and joist span tables built up wood floor beams supporting one floor in a house maximum spans for uniformly distributed loads species and grade supported built up beam size joist length 3 2x8 4 2x8 3 2x10 4 2x10 3 2x12 4 2x12 8 9 8 11 2 11 10 13 8 13 8 15 10 10 8 8 10 0 10 7 12 2 12 3 14 2. The canadian wood council s beam calculator has been developed for the purpose of information only. Dimensional lumber deck beam span chart. Anything 5 and above we always at least double cripple.

Sample floor beam span table. This table is simply a sample and may not be valid for your region. Floor joist span tables for various sizes and species of wood. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.

On longer spans the beam may require much more bearing space as indicated by this table. Span calculator for wood joists and rafters also available for the android os. There are several beam span tables for all the species of wood. Joist span table use these tables to determine floor joist spans based on grade of lumber size of joist floor joist spacing and a live load of 30 lbs ft 2 or 40 lbs ft 2 these tables can also be used to determine deck joist span.

Size selection tables headers beams. Headers beams. Beams of more than one ply must be fastened together with either nails or bolts.