https://www.openlearning.com/u..../thomsenodgaard-smcv
https://hussain-ehlers-2.blogb....right.net/cat-flap-f
Professional cat flap installers can install your pet's door in either a door or a wall. The wall-mounted version is more secure as an intruder cannot reach through. It also reduces energy bills and prevents draughts. The Tasker will mark the location where the cat flap should be in your door, and then drill out the corners. They will also sand down the edges of the frame to give it a smooth surface. Microchip cat