2 X 4 Floor Joist Span Table

1 psf lb f ft 2 47 88 n m 2.

2 x 4 floor joist span table.

View joist rafter tables. The amc span table table gives me about a 5 6 foot span for a 2 x 4 depending on species live load numbers. Rafter and joist span faq. Maximum floor joist span for no.

The spans are based on simple span joists. These tables can also be used to determine deck joist span. Dead load weight of structure and fixed loads 10 lbs ft 2. The minimum bearing length is 1 spans values in bold indicate that web stiffeners are required at the osb end panel.

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. Dimensional lumber deck beam span chart. The numbers in gray indicate the distance between the support posts. I can t use a thicker joist because of door threshold clearance.

The lengths and sizes of joists vary depending on the species and quality of the lumber used. 9 16 tji joists design properties 6 floor span and load tables 7 8 tips for preventing floor noise 8 allowable holes 9 cantilevers 10 11 roof span and load tables 12 13 framing connectors 14 15 section 2. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. 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.

Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. True floor joist span calculations can only be made by a structural engineer or contractor. Live load is weight of furniture wind snow and more. I m building a ground level deck with 2 x 4 joists supported by adjustable post bases bison s.

For example in the joist span table below the highlighted cell shows that 2 x 8 southern yellow pine. Also available for the android os. The 2 4 s and 2 6 s are considered to be in spf 3 stud and the 2 8 s and 2 10 s in spf 1 2. Fire safe construction 3 floor performance and tj pro rating 4 5 section 1.

Honestly that sounds like a trampoline to me. When supporting joists that span 12 feet with no overhang beyond the beam a double ply beam can span in feet a value equal to its depth in inches. A double 2x12 beam can span 12 feet. A 2 2x10 can span 10 feet and so on.

2 grade of douglas fir are indicated below.