English Mastiff


The size of the English Mastiff is the breedтАЩs most distinguishing characteristic. Large dogs tend to average about 100 pounds. The English Mastiff easily doubles this standard. Its weight is not attributed to fat. The breed has well developed muscles and is very strong. Its torso is longer than it is tall. The neck is thick, but average in length. A strong and straight back extends from the neck. The head is comparable size to the body. The ears and facial features are small in relation to its massive head. The breed has a double coat that is coarse on the outside and smooth on the bottom.


Much of the violent behavior that is associated with the English Mastiff has been bred from it. It should not have any type of extreme behavior. While the breed is no longer violent, it should not be passive. Its guard dog qualities (confidence, defensive, and courage) should definitely exist. The breedтАЩs protective and low-key nature makes it good with children. However, supervision is vital with small or young children. Mild training is necessary for it to get along with other pets, especially dogs.

Height and Weight

Male height: 30 inchesMale weight: 160 poundsFemale height: 27 inchesFemale weight: 150 pounds

Health Problems

The health problems that plague the English Mastiff most often include gastric torsion, Progressive Retinal Atrophy (PRA), and Canine Hip Dysplasia (CHD). Some types may also develop elbow dysplasia.

Ideal Living Conditions

The English Mastiff is a large breed, but it is suitable for apartment or other small living conditions. Whether or not the breed should be kept indoors is dependent on the amount of exercise the breed gets. If it will be left indoor alone for most of the day, it should instead be kept outdoors.


The English Mastiff is not a huge fan of exercise. However, exercise should be a part of the breed’s daily regimen. The breed should have at least a walk every day. The walk doesn’t have to be long. Exercise is most important for indoor types.

Life Expectancy

The average life expectancy of the English Mastiff is 10-12 years.

Litter Size

The English Mastiff can have as few as one puppy and as many as 16.


Owners of the English Mastiff will appreciate how easy it is to maintain the breed’s coat. Simply brushing the coat on a regular basis and washing it occasionally is all that is needed. A dry shampoo is recommended.


Great Britain




Most colors are acceptable for the English Mastiff. The most common are light shades of brown and orange. Some types are a combination of colors.