Below is a list of pipe sizes used in Stormwater Studio when it designs the pipe itself. You may enter any known size, however.
| Built-in Pipe Sizes | |
|---|---|
| U.S. CUSTOMARY | |
| 2-inch increments: 6, 8, 10, 12 | |
| 3-inch increments: 15, 18, 21, 24, 27, 30, 33, 36 | |
| 6-inch increments: 42, 48, 54, 60, 66, 72, 78, 84, 90, 96, 102 | |
| METRIC | |
| 75-mm increments: 150, 225, 300, 375, 450, 525, 600, 675, 750, 825, 900 | |
| 150-mm increments: 1050, 1200, 1350, 1500, 1650, 1800, 1950, 2100, 2250, 2400 | |
| 300-mm increments: 2700, 3000 | |
| 21, 27, 33 (525, 675, 825) may be omitted. | |