http://brewwiki.win/wiki/Post:....UPVC_Door_Panel_With
https://cameradb.review/wiki/C....at_Flap_Installer_Ne
It is possible to put the cat flap inside a door panel made of upvc, or a double glazing glass sealed units however the best choice is to purchase a brand new glass pane that has a premade hole installed. Follow the directions that should be provided with your cat flap kit and follow them carefully. Make sure the shape you've drawn (be it a square or circle) is accurately represented on your template drawing. Safety If you have a dog or cat and want to let them into