https://writeablog.net/levelhe....lp31/installing-a-up
http://nutris.net/members/book....card50/activity/2060
https://jsfiddle.net/ruleseason63/xcqjz4L7/
If you're planning to put in a cat flap in your home, it's best to hire a professional tradesperson. DIY projects typically result in poorly-fitted pet flaps that allow in drafts and cause more energy costs. SheffLOCK is able to put a cat flap on most types of doors, including wood, glass, uPVC composite and even on external walls. It takes around 2 hours to install a cat flap. Cost of the pet flap A pet