To order one of our genuine VELUX® Skylight blinds, all you need to know is the the window size code. To identify your window size code:

1. Open the window and locate your data plate on the inside edge. This will usually be located either on the top side of the window or on the inside of the frame itself.

2. Note down the size code as indicated on the data plate.

For VELUX® windows, the size code is usually made up of a group of letters and numbers such as “GGL M04”.

3. If you can't find a data plate on your window, measure the visible glass from side to side and top to bottom and use the chart below to find your code.

View Size chart below:

We can provide blinds for the majority of window sizes but please note that we may not list some older sizes. If you need any help in identifying your window or ordering, please feel free to contact us where our team is ready to help.