https://articlescad.com/cat-fl....aps-for-french-doors
https://posteezy.com/upvc-door-panels-cat-flap-141
uPVC panels are a long-lasting and long-lasting substitute for composite doors. They are durable, energy efficient, and fireproof. They are also affordable and easy to maintain. The easiest way to fit a cat flap into a uPVC panel is to purchase an extra double-glazed sealed unit that has a pre-made hole for the flap. This is safer than cutting a hole into an existing glass panel. UPVC doors are easy to maintain Unlike traditional wooden doors, uPVC doors don't require