A dog door is a small swinging door that, once installed in a door, will let your dog access to the yard of the house. This allows you to enjoy your meal, or your favorite movie, without being interrupted because your dog is adamant on having a stroll in the backyard. With a dog door, your dog has the liberty to move in an out of the house without someones aid.

There are many different kinds of dog doors, from the basic models that make use of a mechanical flap to the luxury ones that are radio wave controlledThe most common type consists of a single flap or door with a hinge at the top. The flap swings freely when pushed and falls back into place once the dog has passed through. Pet doors also have a lock mechanism, which comes handy when you want to restrict your dog indoors.

Though quite useful, conventional dog doors can be a nuisance at times, since stray dogs, raccoons and other small animals might enter your house. Radio wave operated luxury dog doors can successfully counter this situation. A small battery-operated sender on your dogs collar disables the lock when your dog nears the door. The dog door otherwise remains locked at all times, thereby warding off other animals.

Dog doors come in multiples to accommodate different size pets. Having chosen the style, you must make sure that the dog door is big enough to let an easy passage for your dog. Certainly, you would not want your dog to get stuck in the door while walking out. Your dog should be able to tread through with ease by just lowering its head to push the door open.

Most dog doors are rather inexpensive. However, the electronic ones and those that are fitted in sliding glass doors may have a higher cost. But cost should not be a major determining factor while selecting a dog door. A durable and automated dog door, though expensive, will take care of the need for constant monitoring of your dog.