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Corgi Mastiff Mix

A Corgi Mastiff mix is a cross between a Corgi and a Mastiff. Most grow into giant dogs of 70–130 lb and live 9–12 years.

Corgi, a purebred dog
CorgiPhoto: Dog breed facts, CC BY-SA 4.0, source
Mastiff, a purebred dog
MastiffPhoto: Pleple2000, CC BY-SA 3.0, source

Photos show the purebred parents. There is no single look for a mix: puppies in one litter can resemble either side.

Weight70–130 lbcan be 24–230 lb
Height19–21 inat the shoulder
Lifespan9–12 years
SizeGiant

How big does a Corgi Mastiff Mix get?

Corgi24–30 lb
The mix70–130 lb
Mastiff120–230 lb

Pounds. The dark band is where most Corgi Mastiff Mix dogs end up; the light band is the full range between the smallest and largest parent.

Height runs 19–21 inches at the shoulder, against 10–12 in for the Corgi and 27.5–30 in for the Mastiff. The parents differ a lot in size, so litters vary more than usual. Breeders normally use the larger breed as the mother to keep whelping safe.

Figures are for the Pembroke Welsh Corgi, the more common corgi.

Coat, energy and training

Shedding
Low to high

Neither parent has a low-shedding coat, so expect dog hair around the house and seasonal heavy shedding.

Energy
High

Plan on long daily walks plus real exercise, such as running, fetch or a sport. A yard alone will not tire this dog out.

Trainability
Moderate

The Corgi rates moderate and the Mastiff moderate; a puppy may lean either way.

Grooming
Low

A weekly brush and the odd bath keep the coat in shape.

Temperament

The Corgi is usually described as affectionate, smart, alert. The Mastiff as courageous, dignified, good-natured. A mix can take after either parent or land in between. If you can, meet both parents of a puppy before you choose.

Corgi vs Mastiff vs the mix

TraitCorgiCorgi Mastiff MixMastiff
Weight24–30 lb70–130 lb120–230 lb
Height10–12 in19–21 in27.5–30 in
Lifespan12–13 yr9–12 yr6–10 yr
Sheddinghighlow to highlow
Energyhighhighmoderate
GroupHerdingmixedWorking

Questions about the Corgi Mastiff Mix

How big does a Corgi Mastiff Mix get?
Most grow to 70–130 pounds and 19–21 inches at the shoulder. Because puppies can take after either parent, the full possible range is 24–230 pounds.
How long does a Corgi Mastiff Mix live?
A typical lifespan is 9–12 years, the midpoint of the Corgi (12–13 years) and the Mastiff (6–10 years).
Does a Corgi Mastiff Mix shed?
Shedding is low to high. Neither parent has a low-shedding coat, so expect dog hair around the house and seasonal heavy shedding.
Is a Corgi Mastiff Mix easy to train?
Trainability is moderate, based on how both parent breeds respond to training. Start early and keep sessions short.

Other Corgi mixes

Other Mastiff mixes

Figures are calculated from each parent breed's standard height, weight and life expectancy. How we calculate.