Maine Coons will reach their full size at 4 to 5 years, unlike other cats that will continue to grow up until 2 years old and then stop. The possible reason for Maine Coon large size is its longer growing period.
How Long Does It Take Maine Coons To Reach Full Size?
The biggest Maine Coon that has been recorded and holds the Guinness Record for being the largest domesticated cat, Stewie, measured an incredible 48.5 inches in length.
What Is The Biggest Maine Coon That Has Been Recorded?