Rottweilers are loyal, loving, and confidant guardian dogs who are categorized in the working group. Their colors are black, mahogany, rust, and tan. Rottweilers have a double coat and shed heavily in the spring and the fall, and moderately throughout the rest of the year. They are considered a medium to large dog breed with a height ranging from 24-27 inches for males and 22-25 inches for females. Their average weight ranges from 95-135 pounds for males and 80-100 pounds for females. Their life expectancy is 9-10 years.