How long does it take for a Bernese Mountain Dog to fully fill out their muscle mass and chest depth?

Answer

Two to three years old

While height is achieved earlier, the process of filling out, adding the muscle mass that defines their powerful build, commonly continues until they are two to three years old.

How long does it take for a Bernese Mountain Dog to fully fill out their muscle mass and chest depth?

#Videos

How Big Are Bernese Mountain Dogs? - YouTube

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