Tree Protection Zone Encroachment Calculator
| Tree Species | Diameter at Breast Height (DBH) | Tree Protection Zone (TPZ) Radius (feet) | Estimated Encroachment Distance (feet) |
|---|---|---|---|
| Oak | 24 inches | 2.5 x DBH (minimum) | 60 |
| Pine | 18 inches | 2 x DBH (minimum) | 36 |
| Maple | 12 inches | 1.5 x DBH (minimum) | 24 |
| Cedar | 36 inches | 3 x DBH (minimum) | 108 |