| Schedule 80 Dimensions – Size in Inches | |||
| Norm Pipe Size (inch). |
O.D. | Average I.D. | Min. Wall |
| 1/2 | 0.840 | 0.526 | 0.147 |
| 3/4 | 1.050 | 0.722 | 0.154 |
| 1 | 1.315 | 0.936 | 0.179 |
| 1-1/4 | 1.660 | 1.255 | 0.191 |
| 1-1/2 | 1.900 | 1.476 | 0.200 |
| 2 | 2.375 | 1.913 | 0.218 |
| 2-1/2 | 2.875 | 2.290 | 0.276 |
| 3 | 3.500 | 2.864 | 0.300 |
| 3-1/2 | 4.000 | 3.326 | 0.318 |
| 4 | 4.500 | 3.786 | 0.337 |
| 5 | 5.563 | 4.768 | 0.375 |
| 6 | 6.625 | 5.709 | 0.432 |
| 8 | 8.625 | 7.565 | 0.500 |
| 10 | 10.750 | 9.493 | 0.593 |
| 12 | 12.750 | 11.294 | 0.687 |
| 14 | 14.000 | 12.410 | 0.750 |
| 16 | 16.000 | 14.231 | 0.843 |
| 18 | 18.000 | 16.014 | 0.937 |
| 20 | 20.000 | 17.814 | 1.031 |
| 24 | 24.000 | 21.418 | 1.218 |