Engineered Floor Joist Span Table

Floor joist span tables for various sizes and species of wood.

Engineered floor joist span table.

This is the most common as the typical span is 15 feet. 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. Residential structural design vertical structural forces we were about to start learning about floor joist span tables. Floor joist span use this table to determine the maximum lengths of floor joists based on species of lumber joist spacing and joist size.

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. Roof rafter span use this table to determine the maximum lengths of roof rafters based on species and grade of lumber spacing dimensions load and slope. Don t worry you won t need to do a lot of calculations in determining the size and placement of the structural framing within your house design. 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.

Using floor joist span tables. The l 480 table with a 40 per square foot live load and a 20 per square foot dead load with a depth of 11 7 8 inches will give you spans according to joint weight. Engineered wood products ewp span and size charts for bci joists.