Dog house is one important type of dog furniture that is more of a necessity than a luxury. Food, water and shelter are necessities for any one, so also dogs. A dog house is essentially a kennel that allows the dog to mark its territory and use it to rest and sleep. These houses are essentially for outdoor use in families with farms and large yards. They come in all shapes and sizes and materials too. Wood and polymers are the most popular materials as they provide protection from natural elements such as sun and rain. Wireframe dog houses are commonly used for indoor purposes to house many dogs in one place.