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The Great Dane Bull Mastiff Mix: 10 Things to Know before getting one

Last Updated on February 20, 2022 by Dogs Vets

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The Great Dane Bull Mastiff Mix (Bull Daniffs)

The great dane bull mastiff Mix a.k.a Bull Daniffs are well known designer dog breed that comes from a purebred Bullmastiff mixed with a Great Dane.

Great dane bull mastiff are the result of crossing two huge working breeds and are not your average hybrid. These massive dogs can be exceptional family pets as long as the house is big enough for their huge bodies.

The Great Dane Bull Mastiff Mix: What you need to know before getting one

The Great Dane Bull Mastiff Mix is a mix of two large breeds. It can be intimidating to think about getting one, but there are a few things you should know before getting one.

The Great Dane Bull Mastiff Mix is a mix of two large breeds and can be intimidating to think about getting one. But there are a few things you should know before getting one.

The Great Dane Bull Mastiff Mix is an intimidating dog that might not be the best choice for first-time dog owners or people with small living spaces. They need plenty of space and regular exercise to remain happy and healthy, so theyโ€™re not the best choice for someone who lives in an apartment or doesnโ€™t have time for walks every day.

What to Consider before Getting a Bullmastiff Mixed with Great Danes as Pets?

Bullmastiff mixed with Great Danes are not a common breed. However, they have a lot of qualities that make them great pets. They are loyal, protective, and obedient to their owners.

Before getting this dog as a pet, there are some factors that you should consider. One is the size of the dog since this is not an average-sized dog and it may be too big for your home or apartment.

The other factor is the energy level of the dog because this type of dog needs a lot of exercises to stay healthy and happy.

The third factor to consider before getting these breeds as pets is the cost because Bullmastiff mixed with Great Danes are not cheap breeds and they need more care than other breeds.

The Great Dane Bull Mastiff Mix Overview

Height: 25-34 inches
Weight: 105-200 pounds
Lifespan: 12-15 years
Colors: Brindle, fawn, piebald, grey, chestnut, black, white, tricolored, patchwork
Suitable for: Active families, households looking for a reliable watchdog, spacious homes, experience dog owners looking for a large dog
Temperament: Confident, affectionate, protective, reserved, calm (as an adult)


The Bull Daniffs are known for forming strong bonds with their families and being reserved with strangers. Which makes them ideal for families looking for a pet and a guardian for a dog.

While they may seem to look and appear too serious to many individuals, bull mastiffs also have a playful side that can make anyone laugh.

Let’s take a closer look at these massive Great dane bull mastiff hybrids:

How much does Great Dane bull Daniffs puppies cost?

The Purebred Bullmastiff puppies do vary in price, usually with a price ranging from $800 to $2,000. Because of the bloodlines and premium pedigree, some Bullmastiff puppies have sold for more than $6,000.

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Purebred Great Dane puppies are about the same and usually fetch a price of $600 to $3,000. Factors such as companion or show ring lineage drastically change the price of Great Dane puppies.

Bull Daniffs Puppy
Bull Daniffs Puppy

Bull Daniffs are not purebred dogs, but their status as a designer dog breed has created a niche market for them. Depending on size and physical characteristics, you can expect to pay between $400 and $1,200 for a Bull Daniff puppy.

3 little things you need to know about Bull Daniffs


1.Bull Daniffs can weigh over 150 pounds

Bull Daniffs come from a large breed and a huge breed, so it should be noted that Bull Daniffs can easily weigh over 150 pounds on average.

If you are looking to purchase this hybrid, make sure you have room for these dogs. They may seem quite enough for apartments, but their size alone makes apartment living nearly impossible.

2. Bull Daniffs are surprisingly gentle

While some of the known medium and large dog breeds have trouble understanding their own strength, Bull Daniffs are actually quite gentle.

These hybrids, as well as their purebred parents, make excellent dogs for children of all ages due to their reserved nature.

3. Bull Daniffs can be stubborn.

Bull Daniffs are known for being loving and affectionate watchdogs, but they do have a certain stubbornness that can be difficult for first-time dog owners.

Bull Daniffs Temperament & Intelligence

These Crossbreeds dogs can be hard to guess when it comes to temperament and intelligence. Therefore, it’s hard to tell what to expect from your Bull Daniffs puppy. Before we look at the Bull Mastiff personality and intelligence, let’s take a look at the Bullmastiff and Great Dane.


About The Bull Mastiff

Bullmastiffs are very large guard dogs known for their reserved, calm demeanor and keen awareness. Although they can be wild as puppies, Bullmastiffs calm down into more serious dogs as they get older.

These large dogs are loving and affectionate sofa potatoes that love spending time with their families, but they need a confident leader to avoid stubbornness and other behavior problems.

Early socialization is also especially important for this breed, as their protective instincts can become stronger. Therefore, it is important to train them to be polite with new people.

Bull Mastiff
Bull Mastiff

Great Danes are prized for their easygoing temperaments, often referred to as “gentle giants” for their gentle mannerisms. These huge canines are playful and affectionate, which is why they are popular as pets.

Great Danes have an instinctive need to guard the home, but they are not aggressive in their protective ways. They are smart and can recognize obedience fairly quickly, but Danes can become stubborn if pushed too far.

As with other dogs, early socialization is important to set appropriate boundaries with other people and animals.

Looking at both Great Danes and bullmastiff, it is safe to say that most bull Daniffs will be natural guardians and loving family pets.

These dogs need a confident leader to deal with possible stubbornness, but they are relatively calm and gentle.

Aside from testing their place in the household, they are loyal dogs that demand their families’ attention.

The Great Dane & Bull Mastiff Comparison Chart

Great Dane
English Mastiff
30 โ€“ 32 inches (M)
28 โ€“ 30 inches (F)
30+ inches (M)
27+ inches (F)
140 โ€“ 175 pounds (M)
110-140 pounds (F)
150-230 pounds (M)
120-170 pounds (F)
Friendly, Patient, Dependable
Sweet Natured, Loving, Docile
Low Energy
7-10 years
6-10 years
All you need to know about The Great dane bull mastiff Mix (Bull Daniffs)
The Parents breed of Bull Daniff. Left: Great Dane, Right: Bull Mastiff

Are bull Daniffs dogs good for families?

Yes. Despite their immense size and serious faces, the Bull Daniffs have a playful side that makes them ideal for families with children. Although they don’t require hours of exercise, Bull Mastiff enjoys watching from a distance to “supervise” children.

The only potential problem is that they may be overprotective of children, especially when strangers are around.

Does the Great Dane bull mastiff Mix breed get along with other pets?

Yes. Great Danes and Mastiffs are not known to have strong prey drives, which is also true of most regular Bull Mastiff breeds.

As long as all pets are properly introduced, your new Bull Mastiff puppy will adjust to his new brothers and sisters fairly and quickly.

Things you should know if you own a Bull Daniff

Food and dietary requirements for the Great Dane bull Mastiff Mix

Bull Daniffs are prone to weight problems and obesity. Therefore, it is important to find a diet that is high in fiber. We recommend high-quality dry food designed for large breeds.

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However, it is important to have enough fiber to aid in digestion. Before starting any new diet or dog food, consult with your veterinarian first.

Exercise ๐Ÿ•

Bullmastiffs and Great Danes are both known for their lower exercise needs. Bull Daniffs are large dogs that need adequate exercise to prevent weight gain and other health problems, but they are not as energetic as other large breeds.

They need at least two long walks a day and some time to walk around on a leash. It is important not to over-train Bull Daniff puppies as their bones are still growing and developing.

Since Great Danes are good at tracking, your Bull Daniff may inherit this ability. Tracking can be a fun and entertaining exercise for your new dog, especially for Bull Daniffs who need a confidence boost.

Consider setting up a dog-friendly scavenger hunt, which is great for exercise and sharpens your dog’s mind.

Training ๐ŸŽพ

Bull Daniffs thrive with a confident leader and positive food-based training, especially Daniffs that have more Bullmastiff qualities.

These dogs are sensitive and will resist commands if they feel they are being teased. Therefore, it is important to be gentle and consistent with any training method.

Stubbornness can be a real problem if left unchecked, but patience and consistent training are the keys to successfully training these large dogs.

Since both breeds absolutely need early socialization and consistent training, consider a group-based puppy obedience class. This will not only teach you and your dog the basics, but will also give your new puppy the opportunity to meet other dogs.

If you continue to struggle with your Bull Daniff, a professional dog trainer can help you overcome your dog’s training or behavior issues.

Grooming โœ‚๏ธ

Bull Daniffs have short coats that shed moderately. So a good brushing out once a week can help reduce shedding. We recommend a curry comb to remove dirt and trapped fur as well as massage the skin and coat. Otherwise, their coats are low maintenance and combing does not take hours.

Both Bullmastiffs and Daniffs are prone to sensitive skin, so it’s important not to bathe them too often. If your Bull Daniff appears to be balding due to excessive shedding, contact your veterinarian and watch for other spots.

Health and Conditions ๐Ÿฅ

It’s impossible to know what your puppy will be dealing with later in life, even with purebred dogs. One way to know what you may be dealing with is to research your puppy’s parents and their health issues, as well as the lineage to determine what other dogs of the same bloodline have suffered from.

Another way to prepare is to investigate common health problems of both Great Danes and Bullmastiffs. However, this does not guarantee that your puppy will inherit any of these problems.

Common Health problems of Bullmastiffs:

  • Bloat
  • Obesity
  • Cancer
  • Hip Dysplasia
  • Elbow Dysplasia
  • Subaortic Stenosis
  • Chronic dry skin
  • Hypothyroidism
  • Entropion

There are some conditions that both Great Danes and Bullmastiffs suffer from. Therefore, it is not surprising that your Bull Daniff might do the same.

Conditions such as hip dysplasia and bloat are common in both breeds, especially due to their size.

Other conditions that your Bull Daniff may inherit are the various skin and eye problems of both breeds, as well as hypothyroidism. Although most of these conditions are moderately severe, it is not possible to determine whether or not your puppy has inherited them.

The Great Dane Bull Mastiff – Male vs. female

Choosing between males and females should be a personal decision, but it is best to keep in mind that male Bullmastiffs and male Great Danes have a considerable difference from females of both breeds.

Aside from a large size difference, choosing a male or female Bull Daniff is a personal matter that should be discussed with everyone involved.



Final Thoughts:

Bull Daniffs may be large dogs, but they are loving and affectionate protectors of their families. These massive hybrids enjoy consistent attention and affection, making them best suited for families who are home frequently.

It’s important to remember that at 150 pounds, these dogs can easily top the scale, so they need ample room to stretch their legs. While their size can be a major dealbreaker for some, they don’t have as many training requirements as other breeds.

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If you are looking for a calm, reserved guard dog that is also gentle and safe around children, the Bull Daniff will not disappoint.


How big can a Great Dane Mastiff Mix get?

Great Danes and English Mastiffs are both huge breeds, so you can expect to have a very large adult dog. Most Danifs are between 27 and 33 inches tall, and their weight ranges from 115 pounds to about 190 pounds, depending on the sex of the puppy and the size of the parents.

Do Bullmastiffs bark a lot?

Bullmastiffs are one of those dogs. They are very watchful, alert but do not bark too much. The dogs were originally developed in the 19th century to guard estates. They are one of the largest of the non-barking breeds and weigh about 50 kg (110 lbs), sometimes more.

How much does a Daniff cost?

You can expect to pay between $500 and $1,000 for a Danif. Even from high end breeders, the price of a Danif will rarely exceed $1,000.

Are Bullmastiffs dangerous dogs?

They are descended from wolves and were bred by humans, resulting in them being one of the most loyal and dangerous animals.

Are Great Danes Easy to Train?

Great Danes are considered gentle giants. They are moderately playful, affectionate, and good with children. Great Danes are considered to be easy to train, but some Great Dane enthusiasts say that individuals can be stubborn learners.

How long does a Daniff live?

The average lifespan of a Danif is between 8 to 12 years.

Which dog is bigger? Great Dane or Wolf?

Thus, a “Theย Great Dane” outweighs almost all wolves and can weigh four times as much as a small wolf.ย  A large gray wolf may reach 3 feet in body height and 5.2 feet in length. A large Great Dane may reach about 2.8 feet tall and 3 feet long. A large gray wolf is larger than a large Dane.

Which dog is bigger than a Great Dane?

Wolfhounds win by inches as the tallest dog breeds in the world. The Irish Wolfhound is the tallest of all dogs, even the Great Dane. According to the breed standard, the minimum height should be 32 inches for males and 30 inches for females. That is a minimum.

Does the Bullmastiff attack intruders?

The Bullmastiff is best known for its unique and large appearance. … Unlike Great Danes, Bullmastiffs will not only bark, but will attack intruders if necessary.

Having said that, they make great additions to the family, especially when brought home as puppies and raised with the same family.

Do Bullmastiffs bite?

Bullmastiffs are one of the dogs used to discourage intruders, but they are not well known for their bites. Bullies will bark, growl, and give ground long before they bite. When Bullmastiffs resort to biting, they have a very powerful and destructive bite.

Are Great Danes of high maintenance?

Great Danes are known to be gentle giants, they are eager to please, and loves people. When compared to other large dog breeds, these dogs are fairly low maintenance. … You also need to pay attention to the dog’s exercise needs, proper diet, toys, a big bed, and regular visits to the vet.

Can I leave my Great Dane alone?

For the most part, Great Danes are couch potatoes and require short periods of activity, a few short walks a day, and some periods of time off-leash to run and play in the yard.

Some Danes, however, can become destructive if left unattended.

Bullmastiffs are very easy to train

Bullmastiffs are powerful dogs, but they are sensitive. Given the breed’s strength and tendency to be independent, early socialization and training are essential.

How much does a baby Great Dane cost?

How much do Great Danes cost? Adoption costs vary, but young adults are $325 and puppies are $375. If you buy a Dane from a breeder, expect to pay between $600 and $3000, depending on whether it is a companion or show dog.

Can Daniff swim?

Danifs don’t always go to the water on their own, but if they’ve been trained to enjoy a good swim, this exercise is great for oversized breeds! Both young and senior Danifs have fragile joints, so swimming can be an excellent activity with a low risk of injury.

Why are Bullmastiffs banned?

Nonetheless, the American Bulldog is banned in many cities because many people stereotype the breed as dangerous. However, as many dogs vets have explained, these labels are usually wrong. Some irresponsible owners ignore their dogs or teach them aggressive behavior.






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