https://click4r.com/posts/g/18....111231/fitting-a-cat
You and your cat can both benefit from adding a cat flap in your bifold door. It can also help prevent extreme cold or hot weather from entering your home. The first step is to measure your pet's size to determine the size of the flap you'll require. This will help you design an opening for the flap that is the right size. Outdoor Access While installing a cat flap inside an external back door isn't a task for a novice, even those with little DIY skills can usually do it. This will save you the expense and stress of hiring a handy