Douglas Fir Floor Joist Span Tables

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

Douglas fir floor joist span tables. Douglas fir larch lumber species no. Ceiling joist spans for southern yellow pine douglas fir and eastern spruce. Span tables for douglas fir larch lumber. 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.

2019 california building code section 2308. Joist span tables use these tables to determine lengths sizes and spacing of ceiling joists. In hem fir either a no 1 2x10 or a no. In douglas fir larch either a no.

Maximum floor joist span for no. 2019 residential building code r502 r802. Ceiling joists of the first floor of a two story structure often serve as floor joists for the second floor. 1 ft 0 3048 m.

Live load is weight of furniture wind snow and more. 2 grade of douglas fir are indicated below. 2 2x10 or a no. The table excerpt above is simply a sample and may not be valid for your region.

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. Rafter spans for southern yellow pine douglas fir and eastern spruce. If this is the case with your structure use the floor. For this use the tables in design values for joists and rafters.

The table below shows the maximum span for a floor joist with the following designations. For this example i ve excerpted the relevant sections from tables for hem fir douglas fir larch and spruce pine fir figure 4.