| -5 - -4 phi units (Coarse Pebbles) |
| -4 - -3 phi units (Medium Pebbles) |
| -3 - -2 phi units (Fine Pebbles) |
| -2 - -1 phi units (Very Fine Pebbles) |
| -1 - 0 phi units (Very Coarse Sand) |
| 0 - 1 phi units (Coarse Sand) |
| 1 - 2 phi units (Medium Sand) |
| 2 - 3 phi units (Fine Sand) |
| 3 - 4 phi units (Very Fine Sand) |
| 4 - 5 phi units (Coarse Silt) |
| 5 - 6 phi units (Medium Silt) |
| 6 - 7 phi units (Fine Silt) |
| 7 - 8 phi units (Very Fine Silt) |
| 8 - 9 phi units (Clay) |