| Size code | Viewing distance | Examples of use | |
| T |  | 17 m | Small offices, small shops and factories |
| K |  | 22 m | Large offices, large factories, warehouses and shopping centres |
| J |  | 30 m | Large warehouses, distribution centres and exhibition halls |
| Size code | Viewing distance | Examples of use | |
| T |  | 17 m | Small offices, small shops and factories |
| K |  | 22 m | Large offices, large factories, warehouses and shopping centres |
| J |  | 30 m | Large warehouses, distribution centres and exhibition halls |