Wood I Beam Span Table

You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.

Wood i beam span table.

Live load deflection is limited to l 480 for better performance. For loading other than that shown above refer to uniform load tables use fastbeam. The full table shows more lumber sizes. 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.

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. 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. Wood i beam joists gpi series lvl flanges wi series lumber flanges. Floor performance is greatly influenced by the stiffness of the floor joists.

This table is simply a sample and may not be valid for your region. 1 these span tables are based on uniform loads as noted above. This span table excerpt shows two possible sizes of built up floor beams 2 x 10 and 2 x 12. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads.

It also shows the maximum that the beam can span. Experience has shown that joists designed to the code. Engineered wood products ewp span and size charts for bci joists.