Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

How Big a Sheltie Gets: With Growth & Weight Chart

Share

fluffy blue merle white gray shetland sheepdog sheltie

When introducing a new puppy into your life, it is essential to know the breed’s characteristics to find a dog that fits you the best. The Shetland Sheepdog, often called a Sheltie, is a breed of dog that is very popular because of their high intelligence and their unique looks. They are very active and playful, which makes them great for families.

But if you are interested in other characteristics of this breed, for instance, how big they get, read on below.

divider dog paws 4 oct 2024

Sheltie Breed Overview

Shetland sheepdogs originated from the Shetland Islands on the coast of Scotland, where they were used as guard dogs and herding dogs. But as time progressed, they were recognized as amazing dogs for families. They bond with their owners very quickly, which is not good if you spend a lot of time away from home; they can get lonely if left alone for too long.

All sheepdogs have a common characteristic: they are intelligent, which means they respond well to training. Considering what they were bred for, they are very active, meaning they will need a lot of exercise and playtime. Playtime is crucial for them because if they are bored, they will quickly find something else to do, and most of the time, it includes destructive behavior!

cute and smiling bi-black and white bicolor shetland sheepdog
Image by: Lisjatina, Shutterstock

Sheltie Size & Growth Chart

Considered a medium dog breed, adult Shelties grow between 14 and 26 pounds. Of course, there will be differences in weight depending on their gender, but these differences will be minor. Their height ranges from 13 to 16 inches. Below, we have included a helpful chart that lists all weight changes as an average Sheltie grows. You can use this helpful chart to compare with your own dog.

Age Weight Range
3 months 6 lbs–11 lbs
4 months 8 lbs–15 lbs
5 months 10 lbs–17 lbs
6 months 11 lbs–20.5 lbs
7 months 12 lbs–22 lbs
8 months 13 lbs–23 lbs
9 months 13 lbs–23.5 lbs
10 months 13.5 lbs–24 lbs
11 months 13.5 lbs–24.5 lbs
12 months 14 lbs–25 lbs
14 months 14 lbs–26 lbs

When Does a Sheltie Stop Growing?

Shelties are considered to be small to medium-sized dogs, but because of their long furry coat, they can appear bigger than they are. Like many other small dog breeds, you should expect your Sheltie to reach its full growth at around 12 months. But not all of them develop at the same speed—some grow faster, and some grow slower depending on genetics, diet, and other factors.

Don’t confuse their physical growth with their mental growth because even though they appear fully grown at 12 months old, they are still technically puppies and will take more time to mature.

Beautiful blue merle sheltie shetland sheepdog dog fwith fluffy fur tri-color sitting on a green grass in park
Image by: arturs.stiebrins, Shutterstock

Dogster_Website dividers_v1_Jan 18 2024-03

Factors Affecting the Size of Shelties

We already touched on the subject of factors that can affect the growth of your Sheltie, but now we will talk more about them. These factors include:

  • Genetics
  • Gender
  • Nutrition
  • Health issues

Genetics is a significant factor in the growth of a Sheltie because the parents’ size will determine how big the puppy will get—bigger parents usually mean your dog will be big too. Males also tend to get slightly bigger than their female counterparts. Diet is crucial for maintaining the healthy development of the bones and muscles in your Sheltie, so with that said, it should contain all the minerals and vitamins that they need.

Lastly, intestinal parasites and other health issues can cause problems with the growth of a Sheltie, so if you have a young dog that is still developing, don’t forget to take them for regular vet checkups to make sure they’re developing correctly.

Ideal Diet for Maintaining a Healthy Weight

Most experts recommend a complete kibble diet; but sometimes, you can mix it up and add some healthy meat, tinned food, vegetables, or rice. Kibble is made especially for your dog, which means they contain all of the nutrients that your Sheltie needs for their daily activities, and it will also help them maintain their body weight properly.

Shelties can get overweight quickly, so you mustn’t overfeed your Sheltie. While treats are an essential part of a dog’s training, try to cut their treats to a minimum to avoid them gaining weight. You can also try some healthier alternatives to dog treats, such as homemade options. These homemade treats will let you calculate precisely the amount of calories your Sheltie will consume throughout the day.

And finally, the most important thing for maintaining a healthy weight is a lot of activity, which will keep your Sheltie fit and strong and make them happy.

black tan and white shetland sheepdog
Image by: Stephen Orsillo, Shutterstock

How to Measure Your Sheltie

Measuring your Sheltie is essential for keeping track of their growth and weight. If you want to measure your Sheltie’s height, we suggest that you do that while they are standing and have someone who can hold them and keep them from moving, or you can also press them against the wall gently but firmly. You should measure the space between the paw and the highest point of their body. Measure their chest circumference by wrapping a measuring tape around the widest part between the dog’s shoulders so that the tape passes right behind your Shelties front legs.

A similar method goes for measuring the neck circumference. Wrap the tape around the Sheltie’s neck, right over the top of their chest. It is also important to measure the entire length of your Sheltie body, and you should measure the space between the neck and the base of the tail.

To accurately keep a weight chart of your pup, it is easiest to collect two measurements. The first is of your own, and the second is of your body weight while you are holding your dog in your arms. Subtracting your weight will give you the precise weight of your pup.

divider dog paws 4 oct 2024

Conclusion

Shelties are very active dogs that require a lot of exercise and play, which you should consider carefully if you want to get one of these fantastic dogs. Hopefully, our article has helped answer any questions you may have regarding the growth of your Sheltie.


Featured Image Credit: Lisjatina, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

The Crate Setup Most Dog Owners Get Wrong (And How To Fix It!)

Most people assume that if their dog hates the crate, the crate is the problem. So they try a bigger one, a different...

1,500 Beagles Rescued from Wisconsin Lab Farm – Here’s Where They’re Going

You may remember that a few weeks ago, we reported on a tense situation at Ridglan Farms, Wisconsin, a facility infamous for housing...

Dogster’s Weekly Photo Contest Winners: Window Watchers (May 11, 2026)

Every week our team gets the privilege of sorting through our readers photos to choose what dogs will win this weeks contest! See...

Can a Relationship Work When One Person Doesn’t Like Dogs? Tips & When to Walk Away

For dog owners, a partner who doesn’t like dogs isn’t a minor quirk to overlook. Dogs aren’t a hobby you can scale back...

More related

How to Socialize a Puppy: 8 Vet-Approved Training Tips

Socialization is necessary for healthy growth and development in puppies. Puppies will learn a lot about their surroundings within their first 3 months...

9 Best Toys for Dogs Who Like to Dig in 2026 – Reviews & Top Picks

Digging is a natural behavior for dogs. Some love nothing more than getting outside and digging a massive trench around the garden, and...

What Are the Top Dog Sports & How Can I Participate? A Complete Guide

Dog sports are a great way to get your dog some much-needed physical and mental stimulation. It can also be a great way...

10 Best Dog Foods for Tear Stains in 2026 – Reviews & Top Picks

Your dog could have tear stains for many reasons, including food intolerances. According to the American Kennel Club, some dogs see a reduction...

Keep reading

Can Dogs Eat Flaxseed? Vet Reviewed Diet & Health Facts

Flaxseeds, sometimes known as linseeds, provide a host of nutritional benefits to humans. They are packed with essential omega-3 and omega-6 fatty acids and have anti-inflammatory properties that can ease joint pain and arthritis. But can dogs have flaxseed? The...

Can Dogs Eat_Flaxseed

Halo Dog Food Review 2026: Recalls, Pros & Cons

Review Summary Halo is a health-conscious dog food brand marketed toward those who love their pets and the planet. All of the recipes we reviewed feature a well-balanced blend of vitamins, minerals, and probiotics to fortify your dog’s gut. The...

Dogster_Halo Dog Food Review

10 Best Dog Foods for Senior Chihuahuas in 2026 – Reviews & Top Picks

Chihuahuas can be picky eaters. One of the most famous Chihuahuas in the world is known for his single-minded food preference, heralded by his signature phrase, “Yo quiero Taco Bell!” But burritos and nachos aren’t the best foods for dogs,...

chihuahua eating its food on the floor

8 Best Puppy Foods for Shih Tzus in 2026 – Reviews & Top Picks

Many dogs are fine eating whatever food you offer them, though that is rarely the path to peak health. However, Shih Tzus are a different story. They can be difficult to feed for several reasons. They’re known for being picky...

shih tzu puppy eating

9 Best Grain-Free Dog Foods in Canada in 2026 – Reviews & Top Picks

Grain-free diets have been all the rage in the pet industry lately, but are they safe or even necessary? Most vets only recommend a grain-free diet for their pet if it has been proven that the pet in question does...

a dog eating on a bowl

11 Best Dog Foods Made in the USA in 2026 – Reviews & Top Picks

With so many quality dog foods on the market today, dog owners rely on several criteria to help them decide between them. For some, the first question to answer is where the food is manufactured. With several high-profile incidents of...

brown dog sniffing a dog food

8 Best Foods for Yorkie Puppies In 2026 – Reviews & Top Picks

Yorkies are known as some of the world’s smallest dogs. While they aren’t technically the smallest dogs out there (that award goes to the Chihuahua), they’re small enough that finding food for them can be a real challenge, especially when...

Yorkshire terrier puppy sitting on green summer grass with empty metal bowl

10 Best Dry Puppy Foods in 2026 – Reviews & Top Picks

Finding the right puppy food is key to your newest family addition growing big and strong. With so many options available, it’s hard to choose the right one. In an attempt to help you provide your pup with the best...

a Maltipoo puppy eats from a metal bowl

Love Dogs? So Do We! Join the Dogster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Dogster Email Newsletter