Residential Floor Joist Span Tji Span Chart

Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.

Residential floor joist span tji span chart.

It shows the standard span tables for tji s. 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. Design properties 16 floor span and load tables 17 allowable holes 18. Joists for use in residential framing applications fall into two different categories.

Tree sawed and engineered. The floor joist span chart and building code requirements are based on data from the 2012 international residential code using number 2 lumber. 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 entries are listed for 2 6 through 2 12 joists and 12 in 16 in and 24 in.

The spans are based on simple span joists. The table has two column sections one for joists without a cantilever and one for joists with a cantilever. The following screen shot comes from the trus joist tji manual. Tji 360 joists 3 8 25 117 8 14 16 1 tji 560 joists 7 16 3 117 8 14 13 w uniform load in pounds per linear foot l span in feet d out to out depth of the joist in inches el value from table above for tji 110 210 230 and 360 joists δ 22 5 wl 4 2 el 2 67 wl 4 d x 10 5 for tji 560 joists.

The minimum bearing length is 1 spans values in bold indicate that web stiffeners are required at the osb end panel. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. Using tji span tables. When building a house or even a deck it is important to confirm you have the correct joist sizes spans and spacing before you get started.

The tables look overwhelming but they are actually pretty simple to use. Of bearings and is based on uniformly loaded joists. View joist rafter tables. Joist span and spacing is set by your local building code.

While most residential construction uses 2x8 joists with 16 inch spacing there are many other factors you need to consider when determining the proper joist span length. Types of floor joists.