Wood Beam Span Tables Canada

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. 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. Dimensional lumber deck beam span chart.

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The span book is a supplement to the wood joist rafter and beam spans found in the national building code of canada.

Wood beam span tables canada.

Sample floor beam span table. The full table shows more lumber sizes. Size selection tables headers beams. The national building code references the span book as follows.

A 2 2x10 can span 10 feet and so on. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. Tables in the span book and the national building code were both generated by the canadian wood council. Beams of more than one ply must be fastened together with either nails or bolts.

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. There are several beam span tables for all the species of wood. The canadian wood council s beam calculator has been developed for the purpose of information only. 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.

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. 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. A double 2x12 beam can span 12 feet.

This span table excerpt shows two possible sizes of built up floor beams 2 x 10 and 2 x 12. On longer spans the beam may require much more bearing space as indicated by this table. The numbers in gray indicate the distance between the support posts. Floor joist span tables for various sizes and species of wood.

It also shows the maximum that the beam can span. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. Anything 5 and above we always at least double cripple. Headers beams.

Span calculator for wood joists and rafters also available for the android os. This table is simply a sample and may not be valid for your region. Tables a 1 to a 16 cover only the most com mon.