https://elearnportal.science/w....iki/UPVC_Door_Panel_
It is possible to put the cat flap inside a upvc door panel or double glazing glass sealed unit but the best solution is to have a new glass pane with an already-made hole. Take note of the instructions that will be included in your cat flap kit and follow them with care. Make sure that the template illustration accurately depicts the shape (circle or square). Safety If you have a cat or dog and would like to let them in the garden without leaving the door open, a microchip-activated pet flap in your upvc door panel is a g