Guardian mastiff Large size 30-40 kg
Majorca Mastiff
A powerful Spanish guardian mastiff for experienced owners who can provide firm leadership - the trade-off is strong protective instincts and the joint and bloat risks of a heavy breed.
Match with your household
See match detail → Quick overview
Large
Size
30-40 kg, 52-58 cm tall
Moderate
Activity
Steady; needs daily exercise but not frantic
Moderate
Alone-time tolerance
Fairly independent guardian
Moderate
Trainability
Intelligent but strong-willed; needs firm handling
Minimal
Coat care
Short coat, easy upkeep
Fair
Fit with kids
Loyal to family; supervise given size and drive
Caution
Other pets
Guarding and dog-aggression tendencies
Moderate
Health burden
Large breed; joints and bloat to watch
The Majorca Mastiff typically weighs 30-40 kg, stands 52-58 cm, and lives 10-12 years.
Consider this breed if…
you are an experienced owner who can lead a powerful guardian,
you want a loyal, protective family dog and can socialize it well,
you have space and time for daily, steady exercise,
you can commit to early training and firm, consistent structure.
Do not consider this breed if…
this is your first dog or you want an easygoing pet,
you live in an apartment or lack a secure space,
you cannot manage a strong dog with guarding instincts,
you have other dogs and cannot handle possible dog aggression.
A typical day with a Majorca Mastiff
- 7:00 · MorningWalk to start the day, on lead in public
- 9:00 · MidmorningRests and watches over the home
- 13:00 · NoonShort walk and a training refresher
- 17:00 · AfternoonSteady exercise in a secure area
- 19:00 · EveningCalm family time indoors
- 22:00 · NightSettles, alert to the household
Family and environment
Kids Conditional
Loyal to family; always supervise given size and drive.
Dogs Caution
Can be dog-aggressive, especially same-sex.
Cats Conditional
Possible if raised together; introduce carefully.
Apartment Unsuitable
Too large and territorial for flat living.
House with a yard Ideal
A secure, fenced yard suits this guardian.
City Conditional
Manageable for an experienced owner with structure.
Countryside Ideal
Space and a home to guard fit its nature.
Health data provided by RealVetCost Overall health burden Moderate
Detailed health data - inheritance, prevalence, course, and typical treatment costs - lives in a separate expert database. This is general guidance, not veterinary advice - confirm any decision with your vet.
View the full health profileTop health concerns
Hip dysplasia Common in large breeds; screen breeding stock
Elbow dysplasia Can cause front-limb lameness
Bloat (GDV) Life-threatening; know the emergency signs
Dilated cardiomyopathy Heart disease seen in large breeds; monitor
Similar breeds - by reason
Not visually similar - similar in what they mean for you.
Another Spanish guardian mastiff of similar power
Perro de Presa Canario
A large, dominant guarding molosser with a strong protective streak - only for experienced owners ready for serious training and management.
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Spanish molosser-type working dog for experienced owners
Spanish Alano
A powerful Spanish catch-and-guard dog that is steady and biddable for its type - it needs a confident owner and firm, early socialization.
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Large guardian mastiff with comparable needs
Cane Corso
A serious guardian mastiff for experienced owners with space and structure - not a first dog, not an apartment dog.
View profile →Frequently asked questions
How much does a Majorca Mastiff cost in the US?
Also called the Ca de Bou, this is a rare breed outside Spain, so expect limited availability, waitlists and possibly importing a pup. Prices commonly run $1,500-$3,000, more for imported or proven lines. Over a 10-12 year life, food, gear and routine vet care for a large dog typically add $15,000-$25,000 or more, and joint surgery or a bloat emergency can add thousands on top.
Is a Majorca Mastiff a good family dog?
It can be loyal and protective with its own family, but it is a powerful guardian breed that needs an experienced owner, early socialization and firm structure. Supervise it around children and other animals given its size and drive.
Are Majorca Mastiffs aggressive?
They are territorial guardians with strong protective instincts and can show dog aggression, especially toward same-sex dogs. Proper socialization and training make a big difference, but this is not a breed for a casual or first-time owner.
How much exercise does a Majorca Mastiff need?
A moderate amount. Daily walks and steady activity keep it fit and settled, but it is not a frantic breed and does not need endless running. Avoid hard exercise right after meals to reduce bloat risk.