| Value | Category |
|---|---|
| 1 | Block, brick, rock, concrete |
| 2 | Wood (boards, logs) |
| 3 | Quincha (cane sticks and clay), adobe |
| 4 | Metal (zinc, aluminum, etc.) |
| 5 | Palm leaves, hay, penca (fibrous cactus), cane, or sticks |
| 6 | Other materials |
| 7 | Without walls |
| 9 | NIU (not in universe) |