https://aiwins.wiki/wiki/Cat_F....laps_For_French_Door
A cat flap lets your pet enter and exit the house at its own pace, which reduces stress both for you and your cat. However, installing a cat flap isn't an easy task. Planning and preparation are the keys to success. Take your tools and other materials. Determine the exact location of your flap on the wall or door. Location A cat flap allows your pet to go out to explore, eat and play without having to open and close the door each time. It also lets your cat access their food bowl and litter box which can help prevent them from fightin