Pipe Schedule Reference Chart Pipe Size (Nominal) 1/8 1/4 O.D. (Inches) .405 .54 5 .035 .049 10 .049 .065 40 .068 .088 Schedule (Wall Thickness in Inches) STD. 60 80 XH .068 .095 .095 .088 .119 .119 3/8 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 3-1/2 .675 .84 1.05 1.315 1.66 1.9 2.375 2.875 3.5 4 .049 .065 .065 .065 .065 .065 .065 .083 .083 .083 .065 .083 .083 .109 .109 .109 .109 .120 .120 .120 .091 .109 .113 .133 .140 .145 .154 .203 .216 .226 .091 .109 .113 .133 .140 .145 .154 .203 .216 .226 4 4-1/2 5 6 7 8 9 10 11 12 4.5 5 5.563 6.625 7.625 8.625 9.625 10.75 11.75 12.75 .083 .120 .237 .281 .109 .109 .134 .134 .258 .280 .109 .148 .250 .277 .322 .134 .165 .250 .307 .365 .165 .180 .250 .330 .406 .237 .247 .258 .280 .301 .322 .342 .365 .375 .375 14 16 18 20 22 24 14 16 18 20 22 24 .250 .250 .250 .250 .250 .250 .312 .312 .312 .375 .375 .375 .375 .375 .437 .500 .500 .562 .437 .500 .562 .593 .375 .375 .375 .375 .375 .375 20 30 bkhinspectionservices.com .687 .126 .147 .154 .179 .191 .200 .218 .276 .300 .318 .126 .147 .154 .179 .191 .200 .218 .276 .300 .318 .337 .337 .355 .375 .432 .500 .500 .500 .500 .500 .500 .500 . 375 .432 .406 .500 .500 .593 .562 .687 .593 .656 .750 .812 .875 .968 .750 .843 .937 1.031 1.125 1.218 bkhinspection@gmail.com .500 .500 .500 .500 .500 100 120 140 160 XXH .187 .218 .250 .250 .281 .343 .375 .437 .294 .308 .358 .382 .400 .436 .552 .600 .636 .437 .531 .500 .562 .625 .718 .674 .710 .750 .864 .875 .875 .593 .718 .812 .906 .718 .843 1.000 1.125 .843 1.000 1.125 1.312 .937 1.031 1.156 1.280 1.375 1.531 1.093 1.218 1.375 1.500 1.625 1.812 1.250 1.437 1.562 1.750 1.875 2.062 1.406 1.593 1.781 1.968 2.125 2.343 (817) 680-3232