Mastiff characteristics
| Trait | Rating | How common |
|---|---|---|
| Size | Giant | 6% of breeds |
| Energy level | Low | — |
| Trainability | Medium | 48% of breeds |
| Friendliness | High | 35% of breeds |
| Good with children | Very High | — |
| Grooming needs | Low | 24% of breeds |
| Shedding | Medium | 40% of breeds |
| Barking | Low | 32% of breeds |
| Protectiveness | High | 22% of breeds |
| Adaptability | Low | 17% of breeds |
| Typical lifespan | 8 years | — |
| Hypoallergenic | No | — |
“How common” is the share of the 321 breeds we score that sit in the same band. Ratings describe the breed, not any individual dog.
Is the Mastiff right for you?
The Mastiff is one of the true giant breeds that requires real space: bigger rooms, a bigger car and a bigger food budget. In terms of temperament, it is famously gentle and patient with children and keeps a watchful eye and is protective of home and family. Day to day, the Mastiff needs a modest daily walk and some light play to stay happy, which is the single biggest factor in whether it will suit your routine.
Exercise and daily routine
The Mastiff needs a modest daily walk and some light play to stay happy. With low energy and low athleticism, a consistent daily routine keeps this breed physically and mentally satisfied. Skipping exercise is the most common cause of problem behaviour, so match the Mastiff to a lifestyle you can realistically maintain.
Grooming, shedding and upkeep
The Mastiff needs minimal coat care, just a weekly once-over and sheds a moderate amount, with heavier seasonal moults. It is not considered hypoallergenic, so allergy sufferers should spend time around the breed first. Be aware this is also a breed that drools noticeably.
Temperament and training
The Mastiff is reasonably trainable with regular, positive sessions and keeps fairly quiet, barking occasionally. It prefers company and copes only with short periods alone, so plan for company or gradual alone-time training if you work away from home. Early socialization and positive, reward-based training bring out the best in this breed.
What stands out about the Mastiff
Most breed descriptions call everything “loyal and intelligent”. These are the ratings where the Mastiff genuinely differs from the rest of the catalogue — the things worth knowing before you commit.
- Drooling: Very high — the Mastiff drools more than almost any breed we score — expect cloth on hand and marks on your walls. Only 3% of breeds we score share this rating.
- Size: Giant — the Mastiff is a giant breed, which changes the car, the vet bill and the space a dog needs. Only 6% of breeds we score share this rating.
- Athleticism: Low — the Mastiff is less athletic than most breeds. Only 10% of breeds we score share this rating.
- Energy: Low — the Mastiff needs less exercise than most breeds. Only 11% of breeds we score share this rating.
What a week with a Mastiff actually costs you
| Exercise | Short daily walks are enough; it will not push you for more. |
|---|---|
| Coat | Occasional brushing is enough. |
| Time alone | Wants company. Long days alone are where the problems start. |
| Noise | Quieter than most breeds. |
Where the Mastiff fits — and where it does not
Each verdict below comes from the ratings in the table above, so you can check the reasoning rather than take it on trust.
| Household | Verdict | Why |
|---|---|---|
| Apartment living | Depends | Size alone rules out small flats, though the temperament can suit one. |
| Families with young children | Good fit | Very high child tolerance, and sociable with people generally. |
| First-time owners | Depends | Manageable for a committed beginner who takes training seriously from week one. |
| Homes with cats | Good fit | Low prey drive makes cohabitation straightforward in most cases. |
| Long working days | Depends | Low independence — this breed wants company and shows it when it does not get any. |
| Allergy households | Depends | No low-allergen coat recorded, though shedding is not extreme. |
| Wanting a watchful dog | Good fit | High protectiveness. Socialisation decides whether that reads as steady or reactive. |
Guides the Mastiff is ranked in
The Mastiff earns a place on 4 of our lifestyle shortlists:
Perfect for
- Experienced giant breed owners
- Large properties
- Gentle families
- Patient trainers
Things to consider
- Very large size
- Heavy drooling
- Short lifespan
Not sure which breed is right for you?
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Find your perfect matchFrequently asked questions
- Is the Mastiff good with children?
- Yes — the Mastiff is known for being very good with children and makes an excellent family dog.
- Does the Mastiff shed a lot?
- The Mastiff has medium shedding.
- How much exercise does the Mastiff need?
- With low energy, the Mastiff needs relatively little exercise — short daily walks are usually enough.
- How long does the Mastiff live?
- The Mastiff typically lives around 8 years.
- Can the Mastiff live in an apartment?
- The Mastiff is a larger breed and does better in a home with more space, though it can adapt with enough daily exercise.
- Is the Mastiff easy to train?
- The Mastiff is reasonably trainable with regular, positive sessions. Consistency, early socialization and reward-based methods work best.
- Can the Mastiff be left alone during the day?
- The Mastiff prefers company and copes only with short periods alone. Build up alone time gradually and provide enrichment to prevent boredom.