All You Need to Know (But Don’t) About the Boxer-Mastiff Mix Breed


The Boxer-Mastiff mix breed, or Boxmas, is a designer dog breed. Hence, it is recognized by the Designer Breed Registry (DBR) and International Designer Canine Registry (IDCR).
The Boxer-Mastiff mix breed looks quite intimidating in the first go, but you have to get to know it better to see what a genuinely wonderful personality it has. It is fiercely loyal to and protective of its family. It is courageous and never backs down in the face of danger. And it also loves belly rubs! This huge baby will protect you just as vehemently as it will lick your face. Just remember that when you get a Boxmas, socialize it properly to avoid any behavioral issues.
boxer-mastiff mix breed

Physical Traits

★ The Boxer-Mastiff mix is a large-sized dog. It can even grow taller than both its parent breeds. It generally weighs between 80 to 100 pounds.

★ Its tall body is muscular and strong. The ears are of medium length, the tail can be cropped, and the legs are long, with big paws.

★ The coat is short to medium in length. Common coat colors are white, brown, and black. A brindle pattern is also seen in this breed.

Personality Traits

★ The Boxmas has an even temperament. Like both its parents, it is inherently loyal and makes for an excellent guarding and watching dog.

★ It loves to be around its family and is very protective. Children will be very safe with this dog around.

★ It tends to be wary of strangers and will alert its owners of any danger. Mastiffs are guard dogs, but do not tend to bite. Instead, they push the suspicious person to the ground. So, there is a chance that your Boxmas may do the same.


★ This dog tends to shed a healthy amount of hair, almost all year round. So, brushing its coat ever other day is required.

★ It also tends to have that typical ‘doggy smell’ most of the time. Hence, a monthly bathing ritual must be followed as a rule.


★ You may think that the Boxmas comes from two very tough breeds, but all the three, i.e., the Boxer, the Mastiff, and their offspring, are sensitive fellows at heart. They may look like dudes, but they do get hurt easily, so treat them gently and nicely.

★ Training a Boxmas can be a bit of trouble. This dog is intelligent and independent and hence is prone to stubbornness. All you need is patience, a very, very sweet tone, and some doggy treats. Then it won’t be difficult at all.

Living Conditions

★ Small apartments and big dogs do not go together. The Boxmas does best in a house with a yard. But a medium-sized apartment will do, if you can meet your dog’s exercise requirements and spare at least a sofa for him/her to sleep in.


★ Daily walks or short jogs, twice a day, are important for meeting the basic exercise requirements of this dog. However, remember never to over-exert your pet, or else he/she may experience heat exhaustion and other health issues.


★ A relatively healthy breed, the most common health problem that a Boxmas may be prone to is hip dysplasia. The lifespan of this breed is between 9 to 11 years.


★ As you know, many dogs are abandoned on the streets by people who are supposed to love them, just because they are not ‘good enough’. There are many Boxmas dogs among them. This number is on the rise, and so, please consider adopting a dog that has suffered enough hurt at the hands of other people, before deciding to purchase a puppy. There are breeders who genuinely love their dogs, and then there are those who just want to make money out of it. So consider homing those lovely dogs who are
The Boxer-Mastiff mix breed is a wonderful dog to have. It is loving, loyal, protective, friendly, and loves children. It does great, both with families and sole owners. It is sensitive yet tough, and only expects love and acceptance from you. It is a nearly perfect dog; after all, nobody is completely perfect!