Cross Breeds

How long does it take for boxer puppies do be full-grown?

I have a 9 month old boxer puppy who seems to grow more every day. This has been going on for quite some time now. When will he be full grown?

Public Comments

1. Any where between 12-15 months.
2. 1 year to 16 monts
3. Give him a month or two
4. i breed boxers and they do not reach their full size and maturity till 18 months of age or 1yr 6months any other questions about them feel free to emal me at nicehonestgal@verizon.net. thank you
5. Boxers both mature and fill out slower than most breeds. I have owned boxer for 7 years. My boys always stay scrawny looking until they hit 2-3 years old. I hate it, I always think, I got a little boxer! But around 3 years old, they always take the turn and fill out to full boxer boys! And boxers can vary, from small to pretty big, I've seen a few healthy 80 lb boxers. As long as your feeding the correct amount, just keep waiting. Also, they mature slower...my boxers don't hit adulthood until around 2-3 also, much later than other breeds!
6. 1 to 1 1/2 years
7. He will reach his adult height by age 1, then continue to fill out until about age 2.