How Big Do Mini Bernedoodles Get?

By Stephanie Brown/Published On: May 20, 2025/

Let’s play a quick game: how big is a “mini” dog?

If your mind jumps from teacup Chihuahua to “slightly smaller-than-a-horse” Golden Retriever, you’re not alone. In the world of designer breeds, the word mini can mean a lot of different things—and when it comes to Mini Bernedoodles, we’re here to give you the honest, fluffy truth.

At Double U Doodles, one of the most common questions we get is: “How big do Mini Bernedoodles get?”
And it’s a great one—because understanding your future pup’s size is key to preparing your home, heart, and couch space.

Let’s dive in and talk numbers, personalities, and everything in between.

What Is a Mini Bernedoodle?

A Mini Bernedoodle is a delightful mix between:

A Miniature Poodle (10–15 inches tall at the shoulder, weighing 10–20 pounds), and
A Bernese Mountain Dog (a large, gentle breed averaging 70–100+ pounds).

When bred thoughtfully, their offspring—the Mini Bernedoodle—lands right in the sweet spot: not too big, not too small, and all heart.

The Typical Size of a Mini Bernedoodle

Here’s what you can usually expect from a well-bred Mini Bernedoodle:

Height: 18 to 22 inches at the shoulder
Weight: 25 to 45 pounds
Full Size Reached: Around 12–16 months

Of course, as with any dog, there’s always a little wiggle room depending on genetics, diet, exercise, and whether the puppy is F1, F1b, or multigenerational.

At Double U Doodles, we breed with size predictability in mind. We pair sires and dams that have strong histories of producing Mini Bernedoodles within that sweet 25–45 pound range.

F1, F1b, Multigen… What Does It All Mean?

When it comes to size and traits, understanding your Mini Bernedoodle’s generation matters. Here’s a quick overview:

F1 (50% Bernese, 50% Poodle): First-generation. Size may be more variable due to genetic mixing.
F1b (75% Poodle, 25% Bernese): More consistent coat and smaller size due to the Mini Poodle influence.
Multigenerational: Carefully bred over generations for coat type, health, and size predictability.

At Double U Doodles, we specialize in F1b and multigenerational Mini Bernedoodles to offer the most consistent size range and temperament.

Why Families Love the Mini Size

Let’s be honest—Bernedoodles are adorable at any size. But there are a few reasons the mini version is especially beloved:

Easier to manage in smaller homes and apartments
More portable for travel and car rides
Great with kids, without overwhelming them
Longer lifespan on average than their standard-sized cousins
Still big enough to cuddle like a teddy bear (but small enough not to flatten you)

Whether you live in a city apartment or a country cottage, a Mini Bernedoodle brings big-dog love in a medium-sized package.

A Few Factors That Influence Size

Even within a litter, puppies can vary. Here’s what can affect your Mini Bernedoodle’s final size:

Parents’ size: Genetics play a big role—smaller parents often equal smaller pups
Gender: Males tend to be a few pounds heavier and slightly taller than females
Diet and exercise: Overfeeding or lack of movement can lead to a bigger (and not always healthier) pup
Generation: As mentioned, F1b and multigen pups usually fall more consistently within the mini range

At Double U Doodles, we always provide insight into the expected adult size of each pup based on lineage and past litters.

How to Prepare for a Mini Bernedoodle’s Growth

Your pup will go through a few size phases in that first year. Here’s a quick guide to help you plan:

0–3 months: Compact, fluffy, and full of energy. Crate training starts here!
4–8 months: Rapid growth stage. Expect longer legs, more appetite, and zoomies galore.
9–12 months: Growth slows, personality blossoms. This is when their adult frame begins to take shape.
12–16 months: Most Mini Bernedoodles reach their full size.

Things like harness size, crate dimensions, and food portions will need to adjust along the way—but don’t worry, we’re here to guide you.

Life With a Full-Grown Mini Bernedoodle

What does life look like when your Mini Bernedoodle is all grown up?

They’re big enough to hike with you, jog beside you, or wrestle with the kids.
They’re small enough to fit on your lap (sort of) and sleep in your bed (if you let them).
They’re energetic, affectionate, smart, and incredibly loyal.

In short: they’re just the right size for everything.

And since we focus on health, temperament, and predictability here at Double U Doodles, our Mini Bernedoodles grow into dogs who are not just the right size—but the right fit for your family.

Quick Recap: How Big Do Mini Bernedoodles Get?

Here’s what to remember:

Most Mini Bernedoodles grow to 25–45 pounds
Height is typically 18–22 inches
They reach full size around 12–16 months old
Ethical breeding helps ensure size predictability
They’re perfectly sized for families, apartments, and adventures

When bred thoughtfully, Mini Bernedoodles give you the best of both worlds: manageable size, big-dog personality, and cuddle-ready fluff.

Frequently Asked Questions: Mini Bernedoodle Size

Will my Mini Bernedoodle stay small?
They are mid-sized dogs. They won’t stay puppy-sized forever, but they’re far smaller than standard Bernedoodles and large breeds.

How does their size compare to other doodles?
They are typically larger than a Mini Goldendoodle but smaller than a standard Labradoodle or Bernedoodle.

Do males get bigger than females?
Yes, males often grow 5–10 pounds heavier and can be a bit taller than females.

Can I predict my puppy’s adult size?
At Double U Doodles, we use the size of parents, genetic testing, and past litters to give you a strong size estimate.

Are Mini Bernedoodles good apartment dogs?
Absolutely. Their size, calm temperament, and intelligence make them great for apartment living—with daily exercise, of course.

Will my Mini Bernedoodle fit in a standard crate?
Yes—typically a medium-sized crate (30–36 inches) works well for adult Mini Bernedoodles.

How do I keep my Mini Bernedoodle at a healthy weight?
Balanced nutrition, regular walks, and portion control are key. Ask us for recommendations—we’re always happy to help!

Is there such a thing as a “micro” Bernedoodle?
Some breeders use this term for marketing, but it’s not a standard or officially recognized size. We focus on the health and consistency of true Minis.

What if my pup outgrows the typical Mini size?
It happens occasionally, especially with F1s. We’ll help you track their growth and make sure their needs are met at every stage.

Are Mini Bernedoodles just small dogs, or do they have big personalities?
Oh, they have huge personalities—silly, loving, loyal, and always ready for fun. Their hearts are full-sized!

Whether you’re a first-time dog parent or looking to expand your family, a Mini Bernedoodle offers the perfect blend of compact size and big love.

And at Double U Doodles, we’re here to match you with a puppy whose paws—and personality—fit just right. Because finding the right-sized friend isn’t just about inches and pounds… it’s about the joy they bring into your home.