Common breed names: Wire Haired Fox Terriers, Wire Fox Terriers, WFT, Wires and Foxies. Original purpose: Fox hunting, vermin control. Average height: Foxies should not exceed 15 1/2 inches at the withers. Weight range: A male Wire Fox Terrier should weigh between 17 and 19 pounds, while a females weight ranges between 15 and 17 pounds.