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0 0 <br /> TABLE R507.6 <br /> DECK BEAM SPAN LENGTHS b(ft. -in.)(Continued) <br /> DECK JOIST SPAN LESS THAN OR EQUAL TO: (feet) <br /> SIZEd <br /> 6 8 10 12 14 16 18 <br /> 4 x 12 12-10 11-1 10-0 8-5 7-2 6-3 5-7 <br /> 3—2 x 6 6-11 6-6 6-1 5-3 4-6 3-11 3-6 <br /> SPECIES' <br /> 3—2 x 8 9-8 8-6 7-8 6-11 5-11 5-3 4-8 <br /> 3— 2 x 10 11-11 10-4 9-4 8-5 7-7 6-8 5-11 <br /> 3— 2 x 12 13-10 12-0 10-10 9-10 9-1 8-1 7-2 <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. Ground snow load, live load =60 psf, dead load = 10 psf, L/A=360 at main span, L/A= 180 at cantilever <br /> with a 220-pound point load applied at the end. <br /> b. Beams supporting deck joists from one side only. <br /> c. No.2 grade,wet service factor. <br /> d. Beam depth shall be greater than or equal to depth of joists with a flush beam condition. <br /> e. Includes incising factor. <br /> f. Northern species. Incising factor not included. <br /> g I 5 <br />