If you are looking for a way to let your cat in and out of the house without having to actually having to do it yourself, then you are in luck. Installing a cat door is not a very difficult. It won't take up much time and you don't need many tools in order to be able to complete it.
Make sure you measure your pet when choosing the cat door you will use to ensure that it can comfortably and safely fit in and out of the the opening. You will be measuring the height and the width of your pet. The door needs to be a minimum of two inches wider and two inches taller than your pet is. You don't want too large of an opening either, unless your pet is expected to continue growing, then you might want to make adjustments for the height and width your cat is expected to be when full grown.
Once you have picked out the door you will be using, installing it is simple and can be completed in no time. Your cat will finally be able to get the indoor and outdoor time that is desired. The cat door will allow it to come and go freely and allow you to carry on with your busy schedule as needed. Just grab these tools and get started once you have the door in hand.