There are many kennels that limit the dogs that they take based on a size criteria. This way they are able to offer the right amount of kennel area as well as play space for the dog. These kennels are also better for owners that are nervous about their smaller dogs being housed in the same facility as large breeds.
If you need a dog boarding facility, make sure to give enough advanced warning to the location that you will be coming by. During the holiday season and at some points during the summer, they book up very quickly. Calling on them as soon as possible is the best way to secure your place for your pet.