| Value | Category |
|---|---|
| 11 | No walls |
| 12 | Cane/Palm/Trunks/Bamboo |
| 21 | Bamboo with mud |
| 22 | Stone with mud |
| 24 | Plywood |
| 25 | Cardboard |
| 31 | Cement/RCC wall |
| 32 | Stone with lime/cement |
| 33 | Bricks |
| 34 | Cement blocks |
| 36 | Wood planks |
| 37 | Rammed earth |
| 38 | Mud blocks |
| 96 | Other |
| 99 | Missing |
| Sysmiss |