This table is simply a sample and may not be valid for your region.
Wood beam span tables ontario.
Sample floor beam span table.
2 spans for floor joists that are not selected from tables a 1 and a 2 and that.
The ontario building code spans for joists rafters and beams 9 23 4 2.
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.
Span calculator for wood joists and rafters also available for the android os.
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.
A double 2x12 beam can span 12 feet.
Headers beams.
The span book is a supplement to the wood joist rafter and beam spans found in the national building code of canada.
The numbers in gray indicate the distance between the support posts.
There are several beam span tables for all the species of wood.
The full table shows more lumber sizes.
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.
Tables a 1 to a 16 cover only the most com mon.
Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads.
Spans for joists rafters and beams 1 except as required in sentence 2 and article 9 23 13 10 the spans for wood joists and rafters shall conform to the spans shown in tables a 1 to a 7 for the uniform live loads shown in the tables.
Size selection tables headers beams.
Tables in the span book and the national building code were both generated by the canadian wood council.
You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.
This span table excerpt shows two possible sizes of built up floor beams 2 x 10 and 2 x 12.
Floor joist span tables for various sizes and species of wood.
Dimensional lumber deck beam span chart.
December 15 2018 by arfan leave a comment.
Also available for the android os.
Ontario building code wood beam span tables.
A 2 2x10 can span 10 feet and so on.
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.
