Your Keylite style window should contain a unique plate stating the size details of your window. For example Window Size 01. This should be located on the window frame, or in some cases on the inner frame can be seen be found by opening the roof window.

The Code Explained...
Keylite display the codes in a simple manor, Window Size 03 = Keylite Code 3.
In some cases this may have a letter after the number. This is important and please select the correct option when ordering, for example Keylite Code 03a is a different size to a Keylite Code 03. If your size is not displayed on our site, please do call or chat with us online.

In rare cases where only a serial number is provided, please measure the visible glass size and use our chart below, or contact Keylite who can provide you with your Keylite Window Code.

Please note, keylite have stated to change the window size but keep the same code, please do check our sizes on the chart below, and if you have any questions or your code and size do not match our grid please do contact us before ordering.