The diagram below illustrates a cross-section of a window PVC-u door sash. Although it looks complicated, take a few minutes to analyse the diagram against your own door and it should become clearer.

The diagram illustrates the measurements that you need to find your frame upstand and also the cavity size.

The frame upstand highlighted in blue is the distance the door leaf profile sits away from the frame.

The cavity size highlights the size required for the Securistyle Vector Excluder or friction hinges for windows.

If still in doubt, please don’t hesitate to contact our Technical Support by filling out our contact us form and we will be happy to help.

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