Wood I Beam Span Table

This table is simply a sample and may not be valid for your region.

Wood i beam span table.

Bci joists are specially constructed i joists with flanges made from strong versa lam laminated veneer lumber with oriented stranded board webs and approved waterproof structural adhesives providing outstanding strength and durability. The full table shows more lumber sizes. Sample floor beam span table. Wood i beam joists gpi series lvl flanges wi series lumber flanges.

There are several beam span tables for all the species of wood. This span table excerpt shows two possible sizes of built up floor beams 2 x 10 and 2 x 12. Apa performance rated i joists pris are manufactured in accordance with pri 400 performance standard for apa ews i joists form x720 this performance standard provides an easy to use table of allowable spans for applications in residential floor construction allowing designers and builders to select and use i joists from various member manufacturers using just one set of span. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads.

You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. Floor performance is greatly influenced by the stiffness of the floor joists. Floor joist maximum spans joist joist spacing simple span spacing multiple span series depth 12 9 o c 16 19 2 2412 91 29 178 019 158 079 148 099 138 109 188 079 178 009. Live load deflection is limited to l 480 for better performance.

It also shows the maximum that the beam can span. 1 these span tables are based on uniform loads as noted above. Wood i beam blocking panels may be used in place of the 2x4.