I Joist Wood I Beam Span Table

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.

I joist 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. 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. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. The wide flange helps reduce vibration creating a firmer feeling floor.

Engineered wood products ewp span and size charts for bci joists. 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. Span ft 1 5 2 0 2 5 3 0 3 5 2 30 22 18 15 13 4 59 44 36 30 25 6 89 67 53 44 38 8 119 89 71 59 51 10 148 111. In contrast wood i beam joists are more stable by design.

Wood i beam joists are produced at a lower mois ture content thereby minimizing the effects of shrinking twisting and warping.