Douglas Fir Floor Joist Span Tables

2019 california building code section 2308.

Douglas fir floor joist span tables.

If this is the case with your structure use the floor. Maximum floor joist span for no. 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. Douglas fir larch lumber species no.

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. In douglas fir larch either a no. Ceiling joist spans for southern yellow pine douglas fir and eastern spruce. The table below shows the maximum span for a floor joist with the following designations.

2 2x12 would work. Joist span tables use these tables to determine lengths sizes and spacing of ceiling joists. For this example i ve excerpted the relevant sections from tables for hem fir douglas fir larch and spruce pine fir figure 4. Live load is weight of furniture wind snow and more.

1 psf lb f ft 2 47 88 n m 2. 1 ft 0 3048 m. 2 lumber grade all joists are bridged sample floor joist span table. The table excerpt above is simply a sample and may not be valid for your region.

2019 residential building code r502 r802. Rafter spans for southern yellow pine douglas fir and eastern spruce. Dead load weight of structure and fixed loads 10 lbs ft 2. Ceiling joists of the first floor of a two story structure often serve as floor joists for the second floor.

2 2x10 or a no. In hem fir either a no 1 2x10 or a no.