Douglas Fir Floor Joist Span Tables

2 lumber grade all joists are bridged sample floor joist span table.

Douglas fir floor joist span tables. 2019 residential building code r502 r802. Rafter spans for southern yellow pine douglas fir and eastern spruce. Live load is weight of furniture wind snow and more. In douglas fir larch either a no.

The table excerpt above is simply a sample and may not be valid for your region. Joist span tables use these tables to determine lengths sizes and spacing of ceiling joists. 2 2x12 would work. 2019 california building code section 2308.

Douglas fir larch lumber species no. 2 2x10 or a no. Ceiling joists of the first floor of a two story structure often serve as floor joists for the second floor. The table below shows the maximum span for a floor joist with the following designations.

For this use the tables in design values for joists and rafters. For this example i ve excerpted the relevant sections from tables for hem fir douglas fir larch and spruce pine fir figure 4. Span tables for douglas fir larch lumber. 2 grade of douglas fir are indicated below.

If this is the case with your structure use the floor. Rafters l 240 ceiling joists l 240 floor joists l 360 table 2308 7 2 2 table 2308 7 1 1 table 2308 4 2 1 2. Ceiling joist spans for southern yellow pine douglas fir and eastern spruce. 1 ft 0 3048 m.

Rafter span tables use these tables to determine lengths sizes and spacing of rafters based on a variety of factors such as species load grade spacing and pitch. Maximum floor joist span for no.