what age does a cockapoo puppy stop growing
Submit. Â· just now. Report Abuse. Dogs stop growing at approximately one year (some up to 18 months), however they do their fastest growing within the first 6 months, and only grow slightly larger between the 6-18 month range.Your dog is small and will probably reach her full size by 6-8 months.:) Â· 8 years ago.Thumbs up.ubmit. Â· just now. Report Abuse. Dogs stop growing at approximately one year (some up to 18 months), however they do their fastest growing within the first 6 months, and only grow slightly larger between the 6-18 month range.