It depends on the individual puppy, also different lines grow at different rates.
But, I think on average they reach full height at around 6-8 months, then they continue to fill out, becoming heavier and more muscular until they are 10-12 months. Their internal organs will develop until they are around 18 months.
__________________ Indy, Benjamin and Malachi   There is no psychiatrist in the world like a puppy licking your face- Ben Williams |