https://jsfiddle.net/shoppeace5/8mxsq097/
It is possible to install a cat flap in the door panel made of upvc or double glazing glass sealed units however the best choice is to buy a new glass pane that has a premade hole installed. Follow the instructions provided with your kit. Make sure that the sketch accurately depicts the shape (circle or square). Safety If you have a cat or dog and would like to let them into the garden without having the door open A microchip activated pet flap in your door panel made of upvc is a fantastic option. This will only let your pet inside, while prev