Finding the roof window size most suitable for your home depends on the house, the roof and the occupants.

Window sizes

To get guidance about the correct roof window size for your house, please take a look at

In the table you can see the roof window sizes available.
Dimensions in mm 550 660 780 1140
780 C2A      
980 C4A   M4A  
1180   F6A M6A S6A
1400     M8A  

Window Codes

The combination of a window type and size gives you a code to help identify the product in the store.
Window size
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Window type		 C2A C4A F6A M4A M6A M8A S6A
AA AA C2A AA C4A AA F6A AA M4A AA M6A AA M8A AA S6A
DP DP C2A DP C4A DP F6A DP M4A DP M6A DP M8A DP S6A
AV AV C2A AV C4A AV F6A AV M4A AV M6A AV M8A AV S6A
MOE       MOE M4A   MOE M8A  
MOEV       MOEV M4A   MOEV M8A