Boxers are considered a medium to large breed, and they typically reach their full physical maturity between 18 to 24 months of age. However, it's important to note that while they may reach their adult height by around 12 months, they continue to fill out and gain muscle mass until they are about 2 years old.

For example, a male Boxer may grow to be about 65 to 80 pounds and stand 21 to 25 inches tall at the shoulder, while females generally weigh between 50 to 65 pounds and stand 20 to 24 inches tall. During this growth period, it's crucial to provide a balanced diet and regular exercise to support healthy development.

Additionally, keep in mind that growth rates can vary based on genetics, nutrition, and overall health. Regular vet check-ups can help monitor your Boxer's growth and ensure they are developing properly.

In summary, expect your Boxer to be fully grown by around 2 years of age, but they will likely reach their full height by the end of their first year.

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Topics covered in this question:

Boxer Care Puppy Growth Boxer Growth Boxer Development Boxer Size