When I was late getting home because of work or traffic, I worried incessantly about delaying my dog's nature-call trip to the back yard. I felt like a cruel, uncaring parent. Although they are willing to be crated, I felt, probably anthropomorphically, that this was not a fun way to spend the day. So, I was a perfect candidate for a dog door.

After thinking and procrastinating for a couple months, I was ready to make a purchase. I had convinced myself that the dog door would not only provide access to the backyard, but would allow my dogs to get some exercise during the day, add the appearance of protection to the house, and generally make my life easier.

There are many alternative installations depending on where you want to place your door. You can choose from: sliding glass door panel, sliding glass door in the glass, automatic slider for patio doors, screen mounted, window mounted, and door mounted.

You can also select a manual or an electronic opening. Manual dog doors are covered with a flap that swings inward, outward, or in both directions when your dog pushes against it. Manual doors are held in place with springs or magnets. Electronic dog doors open with the aid of a "key" consisting of a small sensor or transmitter located on your dog's collar, or activated by you with a remote control unit. Most electronic pet doors can be turned off or locked when you don't want your dog to use them.

The last decision is size. Pet doors range from little (approximately 5" x 7") to big (approximately 15" by 23"). To select the correct size, measure your pet's width at his widest part and his height from shoulders to the bottom of his tummy - then add two inches. This ensures that your pet will not rub on the door as he passes through.

Posted by Paula.