

Windows and doors for composite panels are purpose made, generally within the limits show in the table below, sizes outside these limits may by considered with consultation.
| Width | Height | Perimeter | |||
| Min (mm) | Max (mm) | Min (mm) | Max (mm) | Max (mm) | |
| WINDOWS | |||||
| Fixed ligh | 300 | 3000 | 300 | 3000 | 9200 |
| Top hung | 300 | 1800 | 3000 | 1800 | 8400 |
| Side hung | 300 | 900 | 300 | 2400 | 6400 |
| Bottom hung | 300 | 1800 | 300 | 1500 | 6400 |
| Horizontal pivot | 400 | 1800 | 400 | 1800 | 6400 |
| Vertical pivot | 400 | 1500 | 400 | 2400 | 6500 |
| DOORS | |||||
| Single | 600 | 900 | 2000 | 2500 | 6600 |
| Double | 1200 | 1800 | 2000 | 2500 | 8400 |