https://articlescad.com/upvc-d....oor-panel-with-cat-f
https://notes.io/w5zqq
https://squareblogs.net/pushmo....nday45/cat-flap-inst
Professionals should take care of the installation of a cat flap onto your door panel. These doors are typically constructed of a plastic exterior that is bonded to an insulation-enhancing, soft polystyrene base. It can be difficult to cut through these materials. It is a lot easier to install the cat flap on an existing glass pane or have the hole prepared in a door. A glazier can be in a position to assist you. Easy to