https://algowiki.win/wiki/Post....:Cat_Flap_Installati
uPVC is a popular option for home doors. They are durable and easy to maintain. They aren't always easy to place with an enclosure for cats. Most of the time, a replacement upvc panel with a cat flap is the best choice. It is easy to put in and is much less expensive than a complete replacement door. Safety uPVC door panels with cat flaps are a great option to let your pet enter and leave your home without opening the door. The door panels are available in a variety of styles and can easily be adapted