Flush box
| Brick wall | 3M | DM30 |  |
| 4M | DM40 |  |
|
| Hollow wall | 3M | HM30 |  |
| 4M | HM40 |  |
|
| Concrete wall | 3M | BM30 |  |
| 4M | BM40 |  |
| Brick wall | 3M | DM30 | |
| 4M | DM40 | |
|
| Hollow wall | 3M | HM30 | |
| 4M | HM40 | |
|
| Concrete wall | 3M | BM30 | |
| 4M | BM40 | |