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Nicole Cosgrove

June 18, 2021
The Mastidoodle is a mixed breed the blend of the Mastiff and the Poodle. He is a large dog with a life expectancy of 8 to 15 years. He is also called a Mastipoo, Mastiffpoo or Mastiffdoodle. He is a loving and laid back dog who makes a great family companion.
Here is the Mastidoodle at a Glance
Average height 15 to 30 inches
Average weight 55 to 100 pounds
Coat type Short/medium, straight, wavy or curly
Hypoallergenic? Can be
Grooming Needs Moderate
Shedding Can be low if more like a Poodle
Brushing Twice a week
Touchiness Fairly sensitive
Tolerant to Solitude? Low to moderate
Barking Occasional
Tolerance to Heat Moderate
Tolerance to Cold Good
Good Family Pet? Very good to excellent
Good with Children? Good with socialization
Good with other Dogs? Moderate to good with socialization
Good with other Pets? Good with socialization
A roamer or Wanderer? Moderate
A Good Apartment Dweller? Good as long as there is room to move around
Good Pet for new Owner? Moderate to good
Trainability Easy to train but bores easily
Exercise Needs Fairly active
Tendency to get Fat Quite high
Major Health Concerns Addison’s, bloat, Cushings, epilepsy, hypothyroidism, Legg-Perthes, SA, eye problems, Von Willebrand’s, seizures, kidney problems, cancer
Other Health Concerns Joint dysplasia, patellar luxation
Life Span 8 to 15 years
Average new Puppy Price $350 to $650
Average Annual Medical Expense $485 to $600
Average Annual Non-Medical Expense $525 to $625

Where does the Mastidoodle come from?

The Mastidoodle is part of a growing number of so called Designer dogs, dogs that have been bred mixing two or more pure breeds. This deliberate creation of mixed breeds has risen in popularity in the last two to three decades. Some are designed for a reason, many are just about making money by puppy mills and other bad breeders. If you are really genuine about your interest in a designer dog make sure you spend time researching who to buy from. Since we have no information about where the Mastidoodle comes from we have to look to the parent breeds to have an understanding of the offspring.

The Mastiff

The Mastiff comes from an ancient breed of dog called the Molosser. Mastiff type dogs can be found across the globe through the years, the Greeks, the Egyptians, the Romans and so on. They were used as war dogs by Hannibal and Kublai Khan and many other leaders. They were also guard dogs, used for hunting and used for entertainment in fights against other fierce animals. In England they were used to guard noble and royal estates. In 1835 the breed almost disappeared when sports like bull baiting, bear baiting and dog fighting were outlawed but the increase in popularity and occurrence of dog shows in the mid 1800s helped save them. They then almost disappeared again in England due to the two World Wars but breeders used puppies brought from Canada to revive them.

Today the Mastiff is still courageous and protective but not vicious or aggressive. In fact he is quite docile and kind. He will be aloof with strangers and may tend to step forward between you and anyone he views as a threat but he will not threaten unless there is an obvious danger. He is a good watch dog and guard dog. He does not like it when family arguments occur and if you are punishing a child he may step in to protect them. He can be shy and fearful if not properly socialized and trained from a young age.

The Poodle

Another very old breed is the Poodle which in fact is German in origin not French. He was bred to help hunters when out hunting waterfowl. When the breed arrived in France he was very popular and it was here that he was refined by breeders into the Poodle we see today. There have been three sizes of Poodle for hundreds of years. The toy size was used a companion especially by the wealthy who would carry them in their sleeves. The miniature size was used to hunt truffles in the woods. The standard size continued to be used as a waterfowl hunter. The Poodle was quickly adopted by circus performers and gypsies as they were smart and learned tricks very quickly. They were added to shows and their coats were sculpted to make them look more appealing. When attenders saw this they adopted it and also started to clip and decorate the Poodle’s coat.

Now the Poodle is sometimes seen as a snooty dog as he does seem to have this nose to the air I am above you look, what Poodle loves might call an air of distinction! However in fact he is just aloof around strangers. With his family he is loving, affectionate, playful sometimes even quite goofy and entertaining. He is intelligent and eager to please so is easy to train. He does not like being left along for long periods though. Early socialization and training help prevent him being too highly strung.


The Mastidoodle is a big dog with a heart of gold. He is laid back for most of the time but is protective of the family. He is a great family dog, very affectionate and loving. He is intelligent and loyal too great with children and easy to train though he does get bored easily. He is also fairly sensitive so avoid being harsh with him he does not respond well to it.

What does a Mastidoodle look like

He is a large dog weighing 55 to 100 pounds and measuring 15 to 30 inches tall. He has a dome like blocky head, drooping ears that hang to the cheeks and seep almond shaped brown eyes. His tail can be long and straight or sometimes docked. His coat ranges between the Poodle and Mastiff’s from wavy to curly, short to medium length. Common colors include black, brindle and cream.

Training and Exercise Needs

How active does the Mastidoodle need to be?

He is an energetic dog so will need plenty of regular exercise to keep him happy and healthy. He would enjoy a long walk, run or cycle, time at a dog park playing, and access to a yard. An hour a day should be enough but it can vary from one Mastidoodle to another. He is not best suited to an apartment but can adapt as long as he has room to move around and you take him out each day.

Does he train quickly?

He is intelligent and even tempered so training should be fairly easy but he does bore very easily. This means you need to adopt tactics that will ensure he does not loose interest like keep training sessions shorter, keep them well paced and interesting, perhaps avoid training where here are other distractions at first. You also need to keep it positive, reward him and praise him. Stay firm and consistent too. Early training and socialization are important to get the best side of him.

Living with a Mastidoodle

How much grooming is needed?

He will need to be brushed at least twice a week and may need need clipping or trimming depending on what coat he has. Use a firm bristle brush when brushing him. He will shed anywhere between a low to moderate amount. Brushing his teeth should happen at least twice a week, wiping and checking his ears should happen once a week and clipping his nails may be needed when they get too long. Give him a bath just when he really needs one, it does not need to be too regular as that can dry out his natural oils.

What is he like with children and other animals?

He is good with other animals, children and dogs but early socialization and training does help that. Teach the children how to play nicely with him and that things like pulling his ears or teasing him with food are not advisable.

General information

He will need to be fed at least 3 to 4 1/2 cups of high quality dry dog food each day, split into at least two meals. He is a good watchdog and will bark to alert you of an intruder. He is best where there is access to a yard but can adapt to apartment living. He is better in cooler climates that ones that are extremely hot.

Health Concerns

Always buy from a good breeder and ask to see health clearances. These two things will help to ensure your puppy is healthy and grows into a healthy dog. There are health issues he could be prone to because of his parents. They include; Addison’s, bloat, Cushings, epilepsy, hypothyroidism, Legg-Perthes, SA, eye problems, Von Willebrand’s, seizures, kidney problems, cancer, joint dysplasia and patellar luxation.

Costs involved in owning a Mastidoodle

A Mastidoodle puppy will cost anywhere between $350 to $650. Initial medical costs for things like chipping, blood tests, deworming and neutering will be about $290 to $320. Initial basic essentials like a collar and leash, bowls and crate will cost between $160 to $200. Yearly costs for basic medical concerns like check ups, flea prevention, pet insurance, shots and heartworm prevention come to $485 to $600. Yearly costs for basic non-medical essentials such as training, license, food, toys and treats come to $525 to $625.


Looking for a Mastidoodle Puppy Name? Let select one from our list!

The Mastidoodle is a lovely dog, some times great for those with allergies and a great family friend. He will be loyal and loving. Despite his size he is a very laid back dog. He will still need a certain amount of exercise each day though so he needs an owner who can commit to that.

Featured Image Credit: Pixabay

Nicole Cosgrove

Nicole is the proud mom of Baby, a Burmese cat and Rosa, a New Zealand Huntaway. A Canadian expat, Nicole now lives on a lush forest property with her Kiwi husband in New Zealand. She has a strong love for all animals of all shapes and sizes (and particularly loves a good interspecies friendship) and wants to share her animal knowledge and other experts' knowledge with pet lovers across the globe.

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