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. 0 • <br /> TABLE R507.5 <br /> DECK JOIST SPANS FOR COMMON LUMBER SPECIESf(ft. -in.) <br /> SPACING OF DECK JOISTS SPACING OF DECK JOISTS <br /> WITH NO CANTILEVER" WITH CANTILEVERS' <br /> SPECIES' SIZE (inches) (inches) <br /> 12 16 24 12 16 24 <br /> 2 x 6 8-6 7-9 6-9 7-7 6-10 6-0 <br /> 2 x 8 11-2 10-2 8-11 9-10 8-11 7-9 <br /> Southern pine <br /> 2 x 10 14-4 13-0 10-11 15-5 13-4 10-11 <br /> 2 x 12 17-5 15-5 12-7 17-11 15-6 12-8 <br /> 2 x 6 8-1 7-0 5-9 7-5 6-9 5-9 <br /> Douglas fir- 2 x 8 10-10 9-5 7-8 9-7 8-8 7-7 <br /> larchd, <br /> hem-firs spruce- <br /> pine-firs 2 x 10 13-3 11-6 9-4 13-3 11-6 9-5 <br /> 2 x 12 15-4 13-4 10-10 15-5 13-4 10-11 <br /> 2 x 6 7-6 6-9 5-6 6-10 6-2 5-4 <br /> Redwood, 2 x 8 9-10 8-6 6-11 8-10 8-0 6-11 <br /> western cedars, _ <br /> ponderosa pinee, <br /> red pinee 2 x 10 12-0 10-5 8-6 12-1 10-6 8-7 <br /> 2 x 12 13-11 12-1 9-10 14-0 12-2 9-11 <br /> For SI: 1 inch =25.4 mm, 1 foot=304.8 mm, 1 pound per square foot=0.0479 kPa, 1 pound =0.454 kg. <br /> a. No.2 grade with wet service factor. <br /> b. Ground snow load, live load =60 psf, dead load = 10 psf, L/L =360. <br /> c. Ground snow load, live load =60 psf, dead load = 10 psf, L/0=360 at main span, L/0=180 at cantilever <br /> with a 220-pound point load applied to end. <br /> d. Includes incising factor. <br /> e. Northern species with no incising factor <br /> f. Cantilevered spans not exceeding the nominal depth of the joist are permitted. <br /> \, 5 <br />