Wool Store › Leg of Lamb Roasts (bone-in) Image 1 of 1 Leg of Lamb Roasts (bone-in) from $24.00 Roast sizes vary from two pounds, to seven pounds. Weight: Select Weight 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 Quantity: Add To Cart Added! Roast sizes vary from two pounds, to seven pounds.