1. In general, the smaller a dog’s final adult
weight, the sooner he or she will stop growing…therefore if your Boxer is genetically predetermined to be 60 pounds, he will still be in a
growth stage at the age of 17 months as opposed to another that is genetically predetermined to be 50 pounds.
Final Boxer dog size cannot be determined for several years. Most puppies will grow in both
height and weight until the age of 18 months (minimum) and 24 months (maximum). Now, this refers to most…there will always be exceptions.
But growth does not stop there…After full height is reached, the Boxer will then continue to grow in girth until the age of 2 to 3 years old. With many, the time between 1.5 years and 3 years old will be time when the chest area really fills in and becomes broad.
Even when a Boxer is done developing in both height and weight, the growth plates will not fully close until the approximate age of 18 months…For this reason, one must take care to not over-exercise the dog. Exercise
is very important and essential for good health…
With this said, a daily walk, a 20-30 minute cardio burst that can be achieved by playing fetch and normal activities such as command training is the limit of what a younger than 18 month old should be expected to do.