Douglas Fir Floor Joist Span Tables

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.

Douglas fir floor joist span tables.

Joist span tables use these tables to determine lengths sizes and spacing of ceiling joists. 2 2x12 would work. The table below shows the maximum span for a floor joist with the following designations. 2019 california building code section 2308.

In douglas fir larch either a no. The table excerpt above is simply a sample and may not be valid for your region. Douglas fir larch lumber species no. Rafter spans for southern yellow pine douglas fir and eastern spruce.

Live load is weight of furniture wind snow and more. Ceiling joist spans for southern yellow pine douglas fir and eastern spruce. In hem fir either a no 1 2x10 or a no. For this use the tables in design values for joists and rafters.

2 2x10 or a no. For this example i ve excerpted the relevant sections from tables for hem fir douglas fir larch and spruce pine fir figure 4. 2019 residential building code r502 r802. Span tables for douglas fir larch lumber.

1 ft 0 3048 m. If this is the case with your structure use the floor. 2 lumber grade all joists are bridged sample floor joist span table. Dead load weight of structure and fixed loads 10 lbs ft 2.

1 psf lb f ft 2 47 88 n m 2. 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.