Every uPVC item that is cut in the Starke CNC has a label on it similar to below.

The elements on this label are as follows:

| Window number from plans, eg “Window 6” |
| Room number from plans, eg “Bedroom 3”. Note, space is limited so sometimes it will be cut off. |
| Outer dimension of the unit |
| Job and order number |
| Production batch number – not useful outside of Starke Factory |



