The only way I've seen this done is by replacing the lower glazing panel
with something else, looks like some kind of hard plastic on the one I
remember. Then a cat flap was fitted.
Brian

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The Sofa of Brian Gaff...

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"John Rumm" wrote in message
o.uk...
On 30/06/2018 12:19, Tim+ wrote:
https://photos.app.goo.gl/Rt6Ju7hN7rkF8ip29

Is it possible in this door?

I'm wondering about a reduced length window in the centre section
and if possible, a new crosspiece to enable secure glazing and
place to put a cat flap. Is this possible post-manufacture?

You could probably get a custom replacement sealed unit made up with a
suitable hole for the flap in it. Then just swap out the whole pane.


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Cheers,

John.

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