https://posteezy.com/using-upv....c-cat-flap-door-pane
If you have a dog or cat installing a pet flap on your French or patio doors is a good idea. It makes it easy for them to get in and out without you needing to open the door. There are many cat flaps available to fit uPVC composite or wooden doors. Some even come with a four-way locking system that can be set to leave only or in the direction of opening, or in both. Installation Cat flaps can be an excellent way to let your cat in and out of the house without opening the door every time. This is particularly useful for cats who lo