Floor Joist Span

Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters.

Floor joist span.

Dead load deflection is limited to l 360 and total load deflection is limited to l 240. Joist span and spacing is set by your local building code. Span calculator for wood joists and rafters also available for the android os. Continuing on from part 1.

Of bearings and is based on uniformly loaded joists. View joist rafter tables. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. The spans are based on simple span joists.

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. Dead load weight of structure and fixed loads 10 lbs ft 2. Maximum floor joist span for no. Floor joist span tables for various sizes and species of wood.

The maximum span is measured o c. 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. True floor joist span calculations can only be made by a structural engineer or contractor. 2 grade of douglas fir are indicated below.

1 ft 0 3048 m. 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. The minimum bearing length is 1 spans values in bold indicate that web stiffeners are required at the osb end panel. 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.

Using floor joist span tables. Live load is weight of furniture wind snow and more. 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. Engineered wood products ewp span and size charts for bci joists.

Residential structural design vertical structural forces we were about to start learning about floor joist span tables.