Residential Wood Floor Joist Span Table

Continuing on from part 1.

Residential wood floor joist span table.

Made of engineered wood substrate a renewable resource. High pitch 6 12 to 12 12 16 17 load bearing cantilever tables 18 21. The spans are based on simple span joists. Residential structural design vertical structural forces we were about to start learning about floor joist span tables.

Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. 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. Using floor joist span tables. Span tables for joists and rafters 3 american wood council table 9 1 required compression perpendicular to grain design values f c in pounds per square inch for simple span joists and rafters with uniform load.

Floor joist span tables for various sizes and species of wood. The maximum span is measured o c. Lp solidstart i joists technical guide for residential construction lpi. 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.

View joist rafter tables. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. The minimum bearing length is 1 spans values in bold indicate that web stiffeners are required at the osb end panel. This means that some values are slightly more conservative than span tables from other sources if those do not include the amended guidance.

Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. 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. Span tables for domestic floor joists to bs 5268 7 1 note. This sample table gives minimum floor joist sizes for joists spaced at 16 inches and 24 inches on center o c for 2 grade lumber with 10 pounds per square foot of dead load and 40 pounds of live load which is typical of normal residential construction.

Of bearings and is based on uniformly loaded joists. Our floor joist span tables are based on loadings given in the newer amended version of bs 6399 1. True floor joist span calculations can only be made by a structural engineer or contractor.