What Age is a Cockapoo Full Grown
- Administrator
- Aug 15
- 2 min read
Cockapoos, the charming hybred cross between a Cocker Spaniel and a Poodle, are known for their loving personalities, playful energy, and adorable teddy bear looks. If you have adopted and are raising a Cockapoo puppy, one of the most common questions is: When will my Cockapoo be fully grown?
The answer depends on your dog’s size, genetics, and breed mix. Cockapoos can be toy, miniature, or standard-sized, and each grows at a slightly different pace. You will find, at Snowsong, we raise mini Cockapoos.
1. Size Matters: Growth Timelines for Different Cockapoo Types
Toy Cockapoos (12 lbs or less) – Reach full height by 6–8 months but may fill out in weight until 10–12 months.
Miniature Cockapoos (13–23 lbs) – Usually reach adult size around 9–12 months, with muscle tone and coat maturity developing until 14 months.
Standard Cockapoos (over 24 lbs) – Can take 12–14 months to reach their full height, and up to 18 months to fully fill out.
2. Height vs. Weight: Two Stages of Maturity
A Cockapoo may look full grown when it reaches its adult height, but that doesn’t mean it’s done developing. What age is a Cockapoo full grown? Like many breeds, Cockapoos go through two main stages:
Height Growth – Bones and joints mature first.
Filling Out – Muscle mass, chest width, and coat density develop later.
Brie, a bi eyed Snowsong Cockapoo
3. The Role of Genetics
If your Cockapoo takes after its Poodle parent, it may have a leaner build and a slightly slower growth curve. If it leans more toward the Cocker Spaniel side, it might fill out earlier and have a sturdier frame.
4. Signs Your Cockapoo Has Reached Adulthood
You can tell your Cockapoo is nearing full maturity when:
Their weight remains stable for several weeks.
They’ve lost their gangly puppy look and have a more proportionate body.
Their energy levels level out — still playful, but less hyper than during puppyhood.
They have their full adult coat, which may be curlier or wavier than as a puppy.
5. Why It’s Important to Know Your Cockapoo’s Growth Stage
Knowing when your Cockapoo is fully grown helps you:
Adjust their diet from puppy food to adult food at the right time.
Plan exercise — puppies need controlled activity to protect developing joints.
Schedule spaying/neutering — often recommended after major growth stages to avoid growth plate issues.
Final Thoughts
Most Cockapoos are close to full size by their first birthday, but they may keep maturing in muscle, coat, and personality for several months afterward. Whether toy, miniature, or standard, your Cockapoo’s growth is an exciting journey — and before you know it, that tiny bundle of fluff will be your lifelong companion.
If you’re looking for a healthy, well-bred Cockapoo puppy, visit Snowsong Siberians and Cockapoos to learn more about our beautiful, family-raised dogs.
