https://articlescad.com/choosi....ng-cat-flap-insulati
https://holmberg-thomasen.thou....ghtlanes.net/how-to-
It is possible to fit a cat flap in a upvc door panel or double glazing glass sealed units however the best choice is to buy a new glass pane that has an already-made hole. Follow the directions included in the kit. Make sure that the shape you have drawn (be it circle or square) is accurately drawn on the template. Safety If you have a dog or cat and want to let them into the garden without opening the door, a microchip ac