https://paul-fox-2.hubstack.net/upvc-door-panels-with-cat-flap-1730066207 https://yamcode.com/adding-a-cat-flap-to-your-bifold-doors-100 A cat flap lets you to give your pet more freedom while avoiding the hassle of having to let them in and out. It can also help your pet be less stressed and keep them from escaping the house when they're not needed. To install a cat flap to install a cat flap, measure the distance from the bottom of the cat's stomach to the floor. Draw a line along the door panel. Verify that the line is straight using the spirit level. 1. The kind of door It is best to consult an expert to install a cat flap in the form of a uPVC or double glazing glass sealed unit. They can supply the uPVC or glass panel with a hole already drilled. This will save you time and money, and ensure that the job is done correctly. The most basic form of cat flap is a simple two-way swinging door that permits your pet to move around as it pleases. These are the least expensive and most easily fitted to doors. However they don't seal well and could let in cold drafts as well as warm air in summer. Another popular option is a microchip cat flap which recognises your pet's unique microchip number and allows the pet to use. This prevents other pets and animals from utilizing the flap, and your pet is secure at home. Additionally, there are locking cat flaps that allow you to lock the door both for exit and entry. lets you control the time your pet leaves and enters, which can be important if you have young children in the house. The most important factor when choosing a cat flap is the size of your pet. This will determine the size of a hole needs to be cut into your door or wall. It's worth taking some time to measure your pet's measurements and then select a door that will be suitable for your pet. It is also important to consider whether you prefer a magnetic or infrared flap when selecting the type of flap. Magnetic and infrared flaps are more expensive, but they offer