At what age does a puppy reach its full size?

From my personal experience it seems they gain most of their weight/height in the first year, then slowly fill out by the end of the second year.

Somewhere between 6 months and 237 years.

depending on breed, 2-3 years typically.

Between 2 & 3 years.

2 years

It depends on the breed, but most puppies keep growing into the third year.

What breed is it

2 years?