When is a Sheepadoodle full grown? Will your Sheepadoodle remain teddy-bear size forever, or will it grow to be more like a bear cub? Knowing when your Sheepadoodle is full-grown can help you to predict your Sheepadoodle’s ultimate size.
We’ll explore what determines Sheepadoodle size, how big they get, and Sheepadoodle growth patterns to help you determine when your Sheepadoodle might be full grown.
Before scrolling down this guide, “When is a Sheepadoodle Full Grown,” you can check out these other helpful articles: When is a Cavapoo Full Grown and When is a Newfiedoodle Full Grown?
What Determines Sheepadoodle Size?
Parents, gender, and generation can be some of the most significant size determiners for Sheepadoodles. Dogs inherit half of their genetics from each parent, so it can be challenging to predict which traits a dog will get from which parent.
Since Sheepadoodle parents may be vastly different in size, their offsprings’ size isn’t something you can predict with 100% accuracy.
There is a wide range of Sheepadoodle sizes because Sheepadoodles result from crossing Old English Sheepdogs (OES) with various sizes of Poodles.
Parent size is essential to the resulting Sheepadoodle size:
- Toy Poodles: No more than 10 inches in height and 4-6 pounds
- Miniature Poodles: 10-15 inches in height and 10-15 pounds
- Standard Poodles: 16-24 inches in height and 40-70 pounds
- Old English Sheepdogs: Males usually reach 22 inches tall, while females reach 21 inches tall. Males weigh 80-100 pounds, while females weigh 60-85 pounds.
The smaller the parents, the smaller the Sheepadoodle, and the larger the parents, the larger the Sheepadoodle. Some Sheepadoodle breeders breed for a specific size, while others mainly try to achieve the best temperament.
Breeders use various combinations of parents to achieve different Sheepadoodle types:
- Giant Sheepadoodle: A mix of a very large Old English Sheepdog with a huge Standard Poodle
- Standard Sheepadoodle: A blend of Old English Sheepdog with a Standard Poodle
- Mini/Medium Sheepadoodle: A mixture of Old English Sheepdog with a Miniature Poodle
- Toy Sheepadoodle: A mix of Old English Sheepdog and Toy Poodle.
Related: Sheepadoodle Coat Color Guide and Sheepadoodle vs. Labradoodle.
As with most dog breeds, male Sheepadoodles are usually taller and weigh more than female Sheepadoodles. If you buy your Sheepadoodle from a breeder that offers size estimates for their litters, you can expect a female to fall at the bottom of the size range or a male to fall at the top of the size range.
First-generation Sheepadoodles are called F1 Sheepadoodles. These Sheepadoodles are the result of breeding an OES with a Poodle. The resulting puppies are the second generation and are called F1b Sheepadoodles.
Sometimes, breeders will breed a second-generation F1b Sheepadoodle with a Poodle to enhance low-shedding qualities or achieve a smaller dog. Breeders often mix F1b Toy Sheepadoodles with a Toy poodles to try to achieve a smaller, Micro Mini Sheepadoodle.
Related: Do Sheepadoodles Shed?
How Big Can Sheepadoodles Get?
Sheepadoodles range from 13 to 27 inches tall and 10 to 100 pounds, depending on their heritage.
Giant Sheepadoodle Size
Giant Sheepadoodles result from a mix of a very large Old English Sheepdog (up to 22 inches and 100 pounds) with a very large Standard Poodle (up to 24 inches and 70 pounds). So, they’re a Standard Sheepadoodle bred to be extra-large. How big do Giant Sheepadoodles get?
Giant Sheepadoodles tend to be at the top of the Sheepadoodle size chart, reaching up to 27 inches and 90-100 pounds. At 27 inches and 100 pounds, a Giant Sheepadoodle can be larger than either breed usually gets when it’s not mixed.
Related: How Long Do Sheepadoodles Live?
Standard Sheepadoodle Size
Standard Sheepadoodles result from breeding an Old English Sheepdog (21 to 22 inches tall and 60-100 pounds) with a Standard Poodle (16 to 24 inches and 40 to 70 pounds).
How big do Standard Sheepadoodles get? Standard Sheepadoodles reach 22 to 27 inches in height and weigh 55 to 85 pounds.
Related: What is a Golden Sheepadoodle?
Miniature & Medium Sheepadoodle Size
Mini Sheepadoodles result from a mix of Old English Sheepdogs (21 to 22 inches tall and 60 to 100 pounds) with a Miniature Poodle (16 to 24 inches tall and 40 to 70 pounds). How big do Mini Sheepadoodles get? Mini Sheepadoodles reach 15 to 22 inches in height and weigh 25 to 55 pounds.
Toy Sheepadoodle Size
Toy Sheepadoodles result from a mix of Old English Sheepdog (21-22 inches tall and 60-100 pounds) and Toy Poodle (4-6 inches tall and 10 pounds or less). How big do Toy Sheepadoodles get?
Toy Sheepadoodles are 15 inches or shorter and weigh 10-25 pounds (4-6 inches tall and 10 pounds or less). Some breeders go a step further, mixing Toy Sheepadoodles with Toy Poodles to make Micro Mini Sheepadoodles in an attempt to ensure the smallest Sheepadoodle possible.
Sheepadoodle Growth Patterns
Most dogs grow the most during their first six months, reaching half of their adult size by age six months. However, since Sheepadoodles have such a wide size range, the halfway point of their growth ranges from 3.5 months to 6 months. Sheepadoodles reach their maximum size from 6 to 16 months.
Growth patterns can be unpredictable for Sheepadoodles. However, if you know your Sheepadoodle’s heritage, it can help predict whether it has reached its maximum size at six months or if it won’t stop growing until it’s almost a year and a half old.
Related: Best Brushes For a Sheepadoodle.
When Do Sheepadoodles Stop Growing?
The age that Sheepadoodles stop growing depends on their ultimate size. Knowing your dog’s heritage makes it easier to understand when a Sheepadoodle is full-grown. Larger dogs can take as many as 16 months to reach their full size, while smaller dogs may stop growing between 6 to 9 months.
- Toy Sheepadoodle: Reach 10 to 25 pounds and 15 or less at 7.5 to 11 months
- Mini/Medium Sheepadoodle: Reach 22 to 55 pounds and 15 to 22 inches at 11 to 13 months
- Standard Sheepadoodle: Reach 55 to 85 pounds and 22 to 27 inches at 12.5 to 16 months
- Giant Sheepadoodle: 90 to 100 pounds and 27 inches at 12.5 to 16 months
Related: Sheepadoodle vs. Goldendoodle.
Puppy Growth Chart and Weight Prediction Calculator
Many breeders offer weight predictions for the puppies that they sell based on the sizes of dogs from past litters from the same parents. However, if you don’t have access to this information, a weight predictions calculator can help.
It’s easiest to calculate when your Sheepadoodle will be full-grown if you know what type of Sheepadoodle you have. However, there are also formulas that you can use to calculate an unknown kind of Sheepadoodle’s ultimate size if you know its exact age.
Toy Sheepadoodle Weight Prediction
Because Toy Sheepadoodles and Micro Mini Sheepadoodles are so small, they tend to reach half of their adult weight around 3.5 to 5 months old. They usually reach their total adult weight at 7.5 to 11 months.
Toy Sheepadoodle Weight Prediction Formula
- Weight at 15 weeks x 2 = Estimated adult weight
Mini/Medium Sheepadoodle Weight Prediction
Because Miniature Sheeepadoodles are so small, they tend to reach half their size at 3.5-5 months and reach their total adult weight at 11-13 months.
Miniature Sheepadoodle Weight Prediction Formula
- Weight at 18 weeks x 2 = Estimated adult weight
Standard Sheepadoodle Weight Prediction
Depending on the ultimate size of your Standard Sheepadoodle, it will get to half its full size at 4.5-6 months. You can expect it to reach full size by 12.5-16 months.
Standard Sheepadoodle Weight Prediction Formula
- Weight at 23 weeks x 2 = Estimated adult weight
Giant Sheepadoodle Weight Prediction
The bigger your Giant Sheepadoodle will be, the later it will reach its growth milestones. It will be half its final size, somewhere between 4.5 and 6 months, and its total size somewhere between 12.5 and 16 months.
Because it’s difficult to know how large a Giant Sheepadoodle will become and when it will stop growing, the weight prediction formula falls in more of a range than most Sheepadoodle types.
Giant Sheepadoodle Weight Prediction Formula
- Weight at 23 to 32 weeks x 2 = Estimated adult weight range
This alternate Sheepadoodle weight prediction formula below may help you narrow down the weight range even more if there’s a chance it won’t reach its ultimate height until age 16 months.
- Weight ÷ age in weeks = Weekly weight growth
- Weekly weight growth x 64 weeks = Estimated weight in 16 months
Alternate Sheepadoodle Weight Prediction
If you got your Sheepadoodle from a shelter or rescue organization instead of from a breeder, you might not know your Sheepadoodle’s heritage. However, you can still make a good guess of the size your Sheepadoodle will ultimately reach using the alternate Sheepadoodle weight prediction formulas below.
As long as you know about how old your Sheepadoodle puppy is in weeks, you can make a good guess of how big it will be when it’s fully grown. It’s not a fool-proof method, but it can give you an idea of whether to expect a gigantic or pocket-sized Sheepadoodle.
Using all of the below methods can give you a range of weights for the best possible educated guess. You can also try finding an online puppy growth calculator to do the math for you. Ones specific to Doodle breeds will be the most accurate.
Alternate Sheepadoodle Weight Prediction Formula #1
- Weight ÷ age in weeks = Weekly weight growth
- Weekly weight growth x 52 weeks = Estimated weight in one year
Alternate Sheepadoodle Weight Prediction Formula #2
- Weight at age 14 weeks x 2.5 = Estimated adult weight
Alternate Sheepadoodle Weight Prediction Formula #3
- Weight at age 20 weeks ÷ 20 x 52 weeks = Estimated weight in one year
Related: Sheepadoodle Lifespan and Health Problems and How Much Does a Sheepadoodle Cost?
Conclusion For “When is a Sheepadoodle Full Grown”
There are several Sheepadoodle sizes: Miniature, Medium, and Standard (sometimes giant). So, knowing when a Sheepadoodle is full-grown is usually a matter of knowing what type of Sheepadoodle you have.
If you’re unsure of your Sheepadoodle’s heritage, you can use a weight-prediction calculator to make a good guess for its ultimate size if you know how old it is. Then, whether you’re going to end up with a fuzzy lapdog or a bear of a dog will be less of a mystery.
For more guides similar to this article, “When is a Sheepadoodle Full Grown,” you can check out:
- When is a Toy Poodle Full Grown?
- When is a Schnoodle Full Grown?
- When is an Australian Labradoodle Full Grown?
Aside from learning when a Sheepadoodle is full-grown, you can learn more by watching “Sheepadoodle Dog Breed Guide” down below:
Andy is a full-time animal rescuer and owner of a toy doodle. When he’s not saving dogs, Andy is one of our core writers and editors. He has been writing about dogs for over a decade. Andy joined our team because he believes that words are powerful tools that can change a dog’s life for the better.
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