| Classification according to plasticity | 6 | Medium plasticity flooring | 172 | Non-plastic soil |
| Low plasticity soil | ||||
| Lightly plastic soil | ||||
| Medium plastic soil | ||||
| Highly plastic soil | ||||
| High plastic soil | ||||
| Classification according to load-bearing capacity | 4 | Very bad basement | 114 | Good basement |
| Bad basement | ||||
| Passable basement | ||||
| Very bad basement | ||||
| Classification AASHTO | 8 | A-6 | 143 | A-2-4 |
| A-2-6 | ||||
| A-2-7 | ||||
| A-4 | ||||
| A-5 | ||||
| A-6 | ||||
| A-7-5 | ||||
| A-7-6 |