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.

Wood beam span tables canada.

This table is simply a sample and may not be valid for your region. It also shows the maximum that the beam can span. Tables a 1 to a 16 cover only the most com mon. Floor joist span tables for various sizes and species of wood.

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. The national building code references the span book as follows. 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.

Span calculator for wood joists and rafters also available for the android os. On longer spans the beam may require much more bearing space as indicated by this table. 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.

Beams of more than one ply must be fastened together with either nails or bolts. Anything 5 and above we always at least double cripple. 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. The canadian wood council s beam calculator has been developed for the purpose of information only.

The full table shows more lumber sizes. 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. Sample floor beam span table.

Headers beams. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. There are several beam span tables for all the species of wood. A 2 2x10 can span 10 feet and so on.

Dimensional lumber deck beam span chart. The numbers in gray indicate the distance between the support posts. Tables in the span book and the national building code were both generated by the canadian wood council.