The shearing weight of adult sheep is from 2.5 to 3.5 kg, rams — 4–5 kg. The length of the wool is 5–10 cm. The yield of washed wool reaches 60%.
Suffolk sheep are a precocious breed. With intensive feeding, the weight of lambs at the age of 3 months is 35–40 kg. The slaughter yield is 50–55%.