https://articlescad.com/using-....upvc-cat-flap-door-p
It may seem difficult to install the flap for your cat but with the right guidelines, it's not all that difficult. Determine how high you would like the flap to be (normally it's at the belly height). Then, mark this area on the door, and use the template included as a guideline to drill. If you have a young kitten hold the door open very slightly and gradually encourage it to pass through. Reward it when it goes through. Measure the Door A cat flap is an excellent method to let your pet leave and come into and out of