How long does a schnauzer live Schnauzer has a life span of 13-16 years. Ensuring your dog’s nutrition, exercising with your dog regularly, and taking your dog for regular vaccinations and deworming can all extend the life span of your Sheltie. The Sheltie is a relatively gentle dog with a high energy level and is clingy, suitable for people who like to play with their dogs. The standard schnauzer has a very high IQ, is full of intelligence, has excellent judgment, and is very energetic. Happy to be trained and has a high tolerance and resistance to climate and disease.
