Class 21 - Class 23
Fit for domestic use
Recommended thickness:
2.0/0.2  |  3.0/0.3  |  4.0/0.3

Class 24 / Class 31
For light commercial use
Recommended thickness:
3.0/0.3  |  4.0/0.3  |  5.0/0.5

Class 32 - Class 34 / Class 41
For intensive commercial and light industry use
Recommended thickness:
5.0/0.5  |  5.0/0.7  |  6.0/0.5  |  6.0/0.7