When do puppies stop growing?

Have your dog given birth or you just adopted a puppy?

No matter what situation you are experiencing, the most crucial task is to take well care of that newborn. And one of the most important things that pet owners should always know for the best preparation of the puppies is their frame size when they are grown up.

However, when do puppies stop growing and how can we anticipate their size? I will reveal everything I know in this article today. Read the following content if you want to raise your puppies healthy.


when do puppies stop growing

When do puppies stop growing?

To answer that question, we need to consider some of the following criteria

1. Breed

The breed is always the first factor to identify the growth rate of your dog. It is also the easiest and most noticeable one. There are four dog breeds that you need to know:

Small breeds

The most typical type of this breed is Chihuahuas, Yorkshire Terries, Shih Tzu, and Chinese Pug. They often reach their full growth when they are ten months or 1 year old. Nevertheless, Shih Tzu and Chinese Pug often need a couple of months before their weight is equal to their height.

Small-medium breeds

You may think of some types, such as Beagles, Miniature Schnauzers, and Toy Puddles. They will be full-grown in height by 12 to 15 months old and in weight by approx. 18 months. This difference can be most obviously noticed when you compare two kinds of dogs.

One common comparison is between a Clumber Spaniel and a Whippet, whose body size is at two opposite ends of the small-medium breed. Therefore, the Whippet often reaches to their full growth in both weight and height in a shorter time than the Clumber Spaniel.

Medium-large breeds

Large dogs usually seem to have longer periods to grow than small ones. Medium-large dogs are completely grown up in height by the month of 18 and in weight by the age of two. They include Boxers, Collies, Labrador Retrievers, Husky, Bulldog, and so on.

Giant breeds

It is the type that takes the longest time to grow fully, which is about 18 months in height and up to 3 years in weight. Several typical kinds are Mastiff, Great Dane, Newfoundland, Cane Corso, Dogue de Bordeaux, and Great Pyrenees.

2. Physical maturity

Physical maturity


Although the previous method is easy to apply, it has a disadvantage. You can only find out when your puppy stops growing depending on its breed, and that depends on its origin. To dogs which you don’t know where they come from or which family adopts them before you, it’s hard to discover the source.

In case that happens, a possible thing you can do is to guess. By noticing physical features of your dog, you can somehow understand its frame size. Weight is the first characteristic that you can look at.

If your dog gives birth to puppies, you can measure their weight when they are four months old. Then, double it. The frame size of your fully-grown-dogs will appear. Another way is to look at their parents. If they share the same breed and size, there are many chances for the puppies to grow up having the same size. Otherwise, they will often take after their bitch’s size instead of the sire’s.

One more method, which tends to be experienced than science and usually applies to dogs with an unclear background, is to notice your puppies’ paws. It’s easy. The sharper and longer their paws are, the larger the frame size of your dog. A dog having petite paws will not reach to a level of weight that they cannot handle. The same thing happens to dogs with large paws.

3. Mental maturity

Besides physical changes on his body, a maturing dog also shows several signs of social communication. You can discover the full size of your puppy by observing and finding out whether he or she is mature.

If your puppy’s eyes are still closed, and ears are not opened, he is only a newborn and 100 percent dependent on his momma. After he is grown up a little and shows you that he is tempted by female dogs, it means that he is just about 2 to 4 weeks old.

If she is a girl, she will pay particular attention to male dogs. When you can observe his curiosity to the outside world, eagerness to play around, and energy-burnt regularly, that is when he has reached 4-12 weeks old.

Mental maturity

At approx. 4-6 months, he starts entering the adolescent stage. That is when he is inquisitive, rambunctious, and aware of his fitness to the world, as well as other dogs. You will find your words not so compelling to him as before, and he is not incredibly excited about everything as he used to.

Finally, when he acts calmly and tends to be experienced, he has come to the final stage, which is maturity. That often occurs when he is at the age of one or two. Also, at that time, he discovers his position in your family and becomes fully-grown in both physical and mental conditions.

If you find his actions and attitude appropriate for the last phase, there are many chances that he has achieved his frame size, and you can work on measurements then.


Have you discovered the answer you want?

I hope you are satisfied with the information I provide about “when do puppies stop growing.” I wish you would be able to take good care of your dogs in the future. If you have any questions, please comment under this article.

I will answer them as soon as I can. Thank you for reading my writing and see you.

Tina Bray

My name is Tina Bray from Thedoghere.com - a student of San Diego State University majoring in communication. My dream is to educate people to stop animal abuse. Now I am living with my parents, two siblings, and my royal friend – a dog called Pip. I often spend her spare time on taking Pip for a walk while hanging out with my friends.

Click Here to Leave a Comment Below 0 comments