What size is a full-grown Norwegian Lundehund?

A full-size Norwegian Lundehund is a small-sized dog. These hardy but little dogs measure about 12 to 15 inches at the shoulder and weigh 13 to 18 pounds, with females on the smaller end of this range. This compact size is largely a result of their historical role as puffin hunters on the rugged cliffs of Norway, where their smaller frame allowed them to navigate narrow crevices and steep, uneven terrain while chasing puffins into burrows.

Genetics plays a primary role in determining their adult size, as does proper nutrition during their puppy stage, which supports healthy bone growth and muscle development. A well-balanced diet and moderate exercise help ensure they grow to their optimal weight and condition.