Wood Beam Span Table

Dimensional lumber deck beam span chart. Window door garage door headers supporting roof wall floor loads. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.

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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.

Wood beam span table. 978 1 920883 39 3 forest wood products australia limited fwpa makes no warranties or assurances with respect to this publication including merchantability fitness for purpose or otherwise. On longer spans the beam may require much more bearing space as indicated by this table. Sample floor beam span table. The full table shows more lumber sizes.

Beams of more than one ply must be fastened together with either nails or bolts. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. According to the 2012 irc codes any beam joist or header shall never have a bearing of less than 1 1 2. The numbers in gray indicate the distance between the support posts.

Ontario building code wood beam span tables december 15 2018 by arfan leave a comment wood i beam joists cantilevers in the 2016 code professional deck builder wood i beam joists floor joist span chart leasord co floor beam span tables calculator. Anything 5 and above we always at least double cripple. 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.

Numbers in blue are joist spans beam to beam or house to beam. A double 2x12 beam can span 12 feet. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. Window door garage door headers supporting roof loads only.

This table is simply a sample and may not be valid for your region. This span table excerpt shows two possible sizes of built up floor beams 2 x 10 and 2 x 12. There are several beam span tables for all the species of wood. Plywood box beam span tables for detached housing construction isbn.