| Value | Category |
|---|---|
| 10 | NATURAL |
| 11 | Mud/clay/earth |
| 12 | Sand |
| 13 | Dung |
| 20 | RUDIMENTARY |
| 21 | Raw wood planks |
| 22 | Palm, bamboo |
| 23 | Brick |
| 24 | Stone |
| 30 | FINISHED |
| 31 | Parquet, polished wood |
| 32 | Vinyl, asphalt strips |
| 33 | Ceramic tiles |
| 34 | Cement |
| 35 | Carpet |
| 36 | Polished stone/marble/granite |
| 96 | other |