https://articlescad.com/how-mu....ch-does-a-cat-flap-c
It is possible to insert the cat flap onto an upvc panel or double glazing sealed unit. However, the most effective option would be to install a new glass pane with a hole that is already made. Follow the instructions provided with your kit. Make sure that the shape you have drawn (be it a square or circle) is accurately depicted on the template. Safety A microchip activated pet door in your door made of upvc is a great solution when you have a pet or cat and wish to let them out in the garden, but do not want to open th