The toy Rat Terrier is an even smaller version of the breed. His weight should range between 5 to 10 pounds and he should be no larger than 12 inches in height. Personality. Sep 16, · Rat Terriers come in three different sizes: the toy, miniature and a larger size often titled the standard size (and sometimes the Decker Giant). Toy Rat Terriers typically reach a height of inches ( cm), and a weight that fluctuates between pounds (2 -3 kg).
About the Rat Terrier Balanced, compactly built Rat Terriers are tough but elegant-looking. There are two size divisions: Miniatures stand 10 to 13 inches at the shoulder; standards are over 13 Temperament: Friendly, Inquisitive, Lovable. Rat Terriers come in three basic sizes with few exceptions. "Standard" between 18 and 25lbs. "Miniture" between 10 and 18lbs. "Toy" 10lbs. and under. Some Rat Terrier associations have "Giant" which is 25lbs and up, and "Tiny Toys" or "Tiny Tots" which are 6lbs. and under.