Residential Floor Joist Span Tji Span Tables

Using floor joist span tables.

Residential floor joist span tji span tables.

3 ilevel trus joist tji joist specifier s guide tj 4500 july 2010 design properties general notes factored resistances are based on limit states design per csa o86 01. Factored shear is computed at the inside face of supports and includes all loads on the span s. Fire safe construction 3 floor performance and tj pro rating 4 5 section 1. Trus joist tji joist specifier s guide tj 4000 july 2019.

True floor joist span calculations can only be made by a structural engineer or contractor. Determine the appropriate live load deflection criteria. The floor joist span chart and building code requirements are based on data from the 2012 international residential code using number 2 lumber. Scan down the column until you meet or exceed the span of your application.

Web stiffeners shall be cut to fit between the flanges of the lp solidstart i joist leaving a. Residential construction lpi. Types of floor joists. Continuing on from part 1.

For the bird s mouth roof joist bearing detail. 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. Joists for use in residential framing applications fall into two different categories. Tji joists are lightweight and come in long lengths which makes them faster and easier to install than traditional framing and saves you both.

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. Trus joist tji joists are a key part of making a high performance floor. Identify the live and dead load condition. Floor joist span tables for various sizes and species of wood.

Factored reaction includes all loads on the joist. Tree sawed and engineered. 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. Trus joist tji joist specifier s guide tj 4000 may 2013 4 floor span tables and material weights how to use these tables 1.

The dimensional stability of tji joists help them resist warping twisting and shrinking that can lead to squeaky floors.