| Value | Category |
|---|---|
| 10 | NATURAL |
| 11 | Earth, sand |
| 12 | Dung |
| 13 | Stone/ mud |
| 14 | Cave/tent/hut/temp r |
| 20 | RUDIMENTARY |
| 21 | Wood planks |
| 22 | Palm, bamboo |
| 30 | FINISHED |
| 31 | Parquet,polished wd |
| 32 | Vinyl,asphalt strips |
| 33 | Ceramic tiles |
| 34 | Cement |
| 35 | Carpet |
| 36 | Gypsum |
| 37 | Tile |
| 38 | Marble |
| 40 | OTHER |
| 41 | Other |