| Steel Pipe - Distance between Supports (m) | ||
| Outside Diameter (mm) | Horizontal Run | Vertical Run |
| 15 | 1.5 | 3.0 |
| 20 | 2.4 | 3.0 |
| 25 | 2.4 | 3.0 |
| 32 | 2.4 | 3.7 |
| 40 | 2.4 | 3.7 |
| 50 | 2.4 | 4.6 |
| 65 | 3.0 | 4.6 |
| 80 | 3.0 | 4.6 |
| 100 | 3.0 | 5.5 |
