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. FLOORS <br /> TABLE 8502.3.1(2) <br /> FLOOR JOIST SPANS FOR COMMON LUMBER SPECIES <br /> (Residential living areas,live load=40 psf,IJA=360)b <br /> DEAD LOAD=10 psf DEAD LOAD=20 osf <br /> JOIST 2 x 6 2 x 8 2x10 2x12 2 x 6 2 x 8 2x10 2x12 <br /> SPACING SPECIES AND GRADE <br /> (inches) Maximum floor joist spans <br /> (ft-in.) (ft-in.) (ft-in.) (ft-In.) (ft-in.) (ft-in.) (ft-in.) (ft-in.) <br /> Douglas fir-larch SS 11-4 15-0 19-1 23-3 11-4 15-0 19-1 23-3 <br /> j <br /> Douglasfir-larch #1 10-11 i 14-5 18-5 22-0 10-11 14-2 17-4 20-1 j <br /> j <br /> Douglas fir-larch! #2 10-9 14-2 17-9 20-7 10-6 13-3 16-3 18-10 <br /> Douglas fir-larch #3 8-8 11-0 13-5 15-7 7-11 10-0 12-3 14-3 <br /> Hem-fir SS 10-9 14-2 18-0 21-11 10-9 14-2 18-0 21-11 <br /> f Hem-fir #1 10-6 13-10 17-8 21-6 10-6 13-10 16-11 I 19-7 <br /> r#0.Hem-fir #2 10-0 13-2 16-10 20-4 10-0 13-1 16-0 18-6 <br /> i Hem-fir #3 8-8 11-0 13-5 15-7 7-11 10-0 12-3 14-3 <br /> I 12 <br /> Southern pine I SS 11-2 14-8 18-9 22-10 11-2 14-8 18-9 22-10 <br /> Southern pine #1 10-11 14-5 18-5 22-5 10-11 14-5 18-5 22-5 <br /> Southern pine #2 10-9 I 14-2 18-0 21-9 10-9 14-2 16-11 19-10 <br /> Southern pine #3 9-4 11-11 14-0 16-8 8-6 10-10 12-10 15-3 <br /> Spruce-pine-fir j SS ' 10-6 13-10 17-8 21-6 10-6 13-10 17-8 21-6 <br /> Spruce-pine-fir #1 ' 10-3 13-6 17-3 20-7 10-3 13-3 ( 16-3 18-10 <br /> Spruce-pine-fir #2 I 10-3 13-6 17-3 20-7 10-3 I 13-3 16-3 18-10 <br /> Spruce-pine-fir #3 I 8-8 i 11-0 13-5 15-7 7-11 I0-0 12-3 14-3 <br /> j Douglas fir-larch SS 10-4 13-7 17-4 21-1 10-4 13-7 17-4 21-0 <br /> 16 Douglas fir-larch #1 9-11 13-1 16-5 19-1 9-8 12-4 15-0 17-5 <br /> Douglas fir-larch #2 9-9 12-7 I 15-5 17-10 9-1 11-6 14-1 16-3 <br /> i <br /> Douglas fir-larch #3 7-6 9-6 11-8 13-6 6-10 8-8 10-7 I 12-4 <br /> IHem-fir SS 9-9 12-10 I 16-5 19-11 9-9 12-10 16-5 19-11 <br /> Hem-fir #1 9-6 12-7 16-0 18-7 9-6 12-0 14-8 17-0 <br /> VEWGK. Hem-fir #2 9-1 12-0 15-2 17-7 8-11 11-4 13-10 16-1 <br /> 4VN Hem-fir #3 7-6 9-6 11-8 13-6 6-10 I 8-8 10-7 12-4 <br /> I Southern pine SS 10-2 13-4 17-0 20-9 10-2 13-4 17-0 20-9 <br /> 16 Southern pine #1 9-11 13-1 16-9 20-4 9-11 13-1 164 19-6 <br /> Southern pine #2 9-9 12-10 16-1 18-10 9-6 12-4 14-8 17-2 <br /> Southern pine #3 8-1 10-3 12-2 14-6 7-4 9-5 11-1 13-2 <br /> Spruce-pine-fir SS 9-6 12-7 16-0 19-6 9-6 12-7 i 16-0 19-6 <br /> Spruce-pine-fir #1 ; 9-4 12-3 I 15-5 17-10 9-1 11-6 14-1 16-3 <br /> Spruce-pine-fir #2 9-4 12-3 15-5 17-10 9-1 11-6 14-1 16-3 <br /> Spruce-pine-fir #3 7-6 9-6 11-8 13-6 I 6-10 8-8 10-7 12-4 <br /> (continued) <br /> 2012 INTERNATIONAL RESIDENTIAL CODE° � � 117 <br />