A Mastweiler is a cross between a Rottweiler and a Mastiff. Mastweilers generally make good family dogs and are protective of their owners and their property. Although the adults are large, typically over 100 pounds, Mastweilers are gentle with children.
Mastweilers are typically bred to have the preferred characteristics of each parent. For example, these dogs tend to be homebodies like Mastiffs, so they do not roam. Their Mastiff half makes Mastweilers more agreeable to being disciplined; however, the Rottweiler genes help Mastweilers be more alert than Mastiffs. Also, Mastweilers often have Rottweiler-shaped mouths; as a result, they produce less drool than Mastiffs.