| 21 | 100 | 103 | External wall details - sections | |
| 21 | 110 | 114 | External wall details - plans | |
| 21 | 300 | 304 | Details of sanitary assembly back panels in external walls |
| 21 | 100 | 103 | External wall details - sections | |
| 21 | 110 | 114 | External wall details - plans | |
| 21 | 300 | 304 | Details of sanitary assembly back panels in external walls |