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70-100 lbs

Affectionate, loyal, and devoted to its family, the Boxmas stems from the Boxer and the Mastiff breeds. This breed has a tendency to become a one-owner dog if early training is not provided. This dedicated canine is not known to be a nuisance barker. While its history is not well-documented, the Boxmas is a hybrid breed that originated in Europe in relatively recent years. This observant dog is known to be watchful of its surroundings and is skilled in protecting against intruders. While this breed may come across as intimidating, its wonderful personality is enough to win you over. The Boxmas contains a short, dense coat with water-repellent hair. Maintenance for this breed is easy as long as daily exercise is provided with intense play.

Guard dog, Companion
Date of Origin
Boxer, Mastiff

Boxmas Health

Average Size
Male Boxmas size stats
Height: 23-36 inches Weight: 70-100 lbs
Female Boxmas size stats
Height: 23-36 inches Weight: 70-100 lbs
Major Concerns
  • Hip Dysplasia
Minor Concerns
  • Usually Very Healthy
Occasional Diagnoses
  • Intervertebral Disc Disease
  • Corneal or Gastric Erosion
Occasional Tests
  • X-Rays
  • Physical Examination
  • Serum Chemistry
  • Complete Blood Count

Boxmas Breed History

Due to its hybrid breed status, the Boxmas’ history is not well-documented. Both of its parent breeds – the Boxer and the Mastiff – were developed in Europe. The Boxmas was also said to have originated in Europe, although the year is unknown. Hybrid breeds were often developed in order to decrease medical diseases and develop healthier dogs. There are conflicting reports as to how the Boxer was originally developed. It is reported that the Boxer was developed from Germany in order to retain qualities from its ancestors – the Dogue de Bordeaux and the old fighting dog from Tibet. The Boxer continued to be modified for its appearance in order to create a more attractive canine. Other research suggests that this breed was developed by now-extinct breeds such as the Danziger Bullenbaiser and the Brabenter Bullenbaiser in Central Europe. In the 1830s, German hunts cross-bred these breeds in order to develop a new breed that was tough and agile. In 1895, the Boxer was said to have been established. The Boxer became a favorite among the military and police forces in the 1900s. In 1904, the Boxer was registered with the American Kennel Club. In 1940, the Boxer won Best in Show. The Boxmas’ other parent breed – the Mastiff – has been mentioned as early as the 6th century B.C. The Mastiff became a Roman favorite and was used as a gladiator in the arena. Its massive size allowed it to perform jobs consisting of guarding, watching, and search and rescue tasks. Sir Piers Legh was one of the most favorite Mastiffs who stood guard over the battle of Agincourt. This lovable canine was imported to America in the 1800s and almost became extinct in Europe during World War II. While its ancestors were trained to protect, today’s Mastiff is also a loyal companion willing to please its family.

Boxmas Breed Appearance

Standing large, the Boxmas is a massive breed that may intimidate those who are unaware of the gentle giant. Its tall body is muscular and strong. The Boxmas’ legs stand long with its large paws. The ears are of medium-length and resemble the Mastiff’s traits. The tail can be left natural or cropped. Its coat is short, dense, and water-repellent and varies from white, to brown, to black. When fully grown, this massive canine weighs between 70 to 100 pounds. The Boxmas’ appearance can vary depending on which dominant traits it takes on. Typically, this large breed will strongly resemble the Mastiff.

Eye Color Possibilities
brown Boxmas eyes
Nose Color Possibilities
black Boxmas nose
Coat Color Possibilities
white Boxmas coat
brown Boxmas coat
black Boxmas coat
brindle Boxmas coat
Coat Length
Short Medium Long
Coat Density
Sparse Normal Dense
Coat Texture
Boxmas straight coat texture
Straight Wiry Wavy Curly Corded

Boxmas Breed Maintenance

The Boxmas is not a hypoallergenic breed and has high shedding levels. If you have allergies, this breed may not be the best fit for you. Daily brushing is required in order to eliminate dead hairs and prevent hairs from accumulating around your home. The best brush to use would be a rubber curry brush, though a deshedder may come in handy at times. This active canine does contain a moderate smell which can be lessened with baths every 6 to 8 weeks. Over bathing can lead to overproduction of oils in its skin. Ears should be wiped and cleaned at least once weekly. Teeth should be brushed, ideally every day, for tartar removal. Nails should be maintained by trimming them every 2 to 3 weeks to prevent overgrowth and discomfort.

Brushes for Boxmas
Nail Clipper
Brushing Frequency
Boxmas requires daily brushing
Daily Weekly Monthly

Boxmas Temperament

Much like other hybrid breeds, the Boxmas’ temperament can vary, depending on which dominant traits it inherits. It can inherit the energetic nature of the Boxer or develop a more docile disposition. This friendly canine is known to be cheerful, genuine, friendly, loyal, protective, and affectionate. Its personality allows for a suitable companion pet. Early training should be provided so your Boxmas is fully accepting of younger children. Be careful to avoid your dog from becoming too attached to just one member of the family. Early socialization and interaction with all family members will prevent this from becoming an issue. Your dog may need to learn how to distinguish between a friendly stranger and an unfriendly intruder. Once it understands the difference, it can be affectionate and loving to others. Providing positive reinforcement is key with the Boxmas. It is important to be firm with commands and reward with treats. The Boxmas is considered a highly intelligent breed that wants to accompany its family everywhere. Its energy levels are generally described as high.

Boxmas Activity Requirements

Your Boxmas requires high instances of stimulation in order to remain engaged and avoid boredom. This breed is very exuberant and will need intense play outdoors. This active canine is accustomed to being used as a guard dog, watchdog, and military/police dog. Remaining active ensures this breed is provided with the necessary mental work that he needs to be content. The Boxmas will benefit from activities such as running, tugging, fetching, obedience classes, and numerous walks totalling at least an hour of getting out per day. With a breed as large at the Boxmas, apartment living should be avoided. Because exercise is a top priority for this breed, a large, rural home with a spacious yard would be the best fit. A warm climate is ideal.

Activity Level
Low Medium High
Rec. Walk Mileage Per Week
12 miles
Minutes of Activity Per Day
60 minutes

Boxmas Food Consumption

Cups Per Day
4 cups
Daily Cost
$2.8 - $3
Monthly Cost
$80 - $90

Boxmas Owner Experiences

2 Years
4 People
House & Yard
He is very excitable and forgets that he is such a big dog! He loves to play and will get jealous when I play with my other dogs. Very loyal, barks but not too much.
1 month ago
1 Year
2 People
House & Yard
Dog Parks
Go to Beach
The sweetest, chattiest, loyal dog. We socialized him very young so he loves all people and dogs alike. However if someone comes in the yard, the guard dog comes alive! Until the person comes inside and he slobbers them to death. Also so great taking in public to restaurants and bars! Very smart, very fun, the best dog I have ever had.
1 month ago
5 Months
3 People
House & Yard
This little man lights up every room he enters. He is happy to play if you want to play, happy to chill if you want to chill. He is the EASIEST puppy I have ever owned.
1 month, 3 weeks ago
3 Years
2 People
Dog Parks
Ryder is a great addition to our family!! He has bonded with me and is slow to respond to other family members. He gets his feeling hurt very easy and is easy spooked by new things. Through encouragement and socialization, I have been able to adjust him very well!
3 months, 2 weeks ago
Book me a walkiee?
Sketch of smiling australian shepherd