https://dokuwiki.stream/wiki/C....at_Flap_Installation
https://opensourcebridge.scien....ce/wiki/Using_uPVC_C
Allowing your cat to leave and enter the house as it pleases is an excellent way to keep your pet physically active and mentally engaged. Having a flap can also aid in reducing toilet accidents by making it easier for your cat to leave the house when it needs to. Take a measurement of the door A cat flap lets your pet move around as they want without having to open the door. This makes it ideal to keep them in the house when you're at home or away, and