Wood Beam Span Table 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 table canada.

You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. 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. This span table excerpt shows two possible sizes of built up floor beams 2 x 10 and 2 x 12. A 2 2x10 can span 10 feet and so on.

Tables in the span book and the national building code were both generated by the canadian wood council. The full table shows more lumber sizes. A double 2x12 beam can span 12 feet. It also shows the maximum that the beam can span.

The numbers in gray indicate the distance between the support posts. The national building code references the span book as follows. Dimensional lumber deck beam span chart. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads.

This table is simply a sample and may not be valid for your region. Sample floor beam span table. There are several beam span tables for all the species of wood. Tables a 1 to a 16 cover only the most com mon.

The canadian wood council s beam calculator has been developed for the purpose of information only.