https://blogfreely.net/levelbo....mb54/how-to-train-yo
It is possible to install an animal flap into the door panel made of upvc or double glazing glass sealed units but the best solution is to have a new pane of glass with a premade hole installed. Read the instructions that should be included with your cat flap kit, and follow them with care. Make sure the shape you've drawn (be it circle or square) is accurately represented on your template drawing. Safety If you have a cat or dog and want to allow them access to the garden without having the door open, a