Douglas Fir Floor Joist Span Tables

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 floor joist span tables.

2 2x10 or a no. 2019 california building code section 2308. For this example i ve excerpted the relevant sections from tables for hem fir douglas fir larch and spruce pine fir figure 4. Rafter spans for southern yellow pine douglas fir and eastern spruce.

Joist span tables use these tables to determine lengths sizes and spacing of ceiling joists. In douglas fir larch either a no. 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.

Maximum floor joist span for no. 1 psf lb f ft 2 47 88 n m 2. 2 2x12 would work. In hem fir either a no 1 2x10 or a no.

The table below shows the maximum span for a floor joist with the following designations. 1 ft 0 3048 m. Live load is weight of furniture wind snow and more. For this use the tables in design values for joists and rafters.

2019 residential building code r502 r802. The table excerpt above is simply a sample and may not be valid for your region. Span tables for douglas fir larch lumber. If this is the case with your structure use the floor.

Ceiling joist spans for southern yellow pine douglas fir and eastern spruce. Dead load weight of structure and fixed loads 10 lbs ft 2.