https://articlescad.com/cat-fl....ap-cover-for-winter-
It might seem daunting to put up a cat flap, but with the right guidelines, it's not all that difficult. First, determine the height you would like the flap to be (on average the belly height). Then, mark this area on your door and use the template included as a guide when drilling. If you have a small kitten you can prop the door open a bit and gradually encourage it to pass through. Reward it each time it goes through. Take a measurement of the door A cat flap lets your pet to enter and exit your home at its convenience. T