Organic Beef Sirloin Joint approx weight 1kg boned and rolled (£33.50/kg) A luxurious and tender joint for that special occasion. Less fat than the rib of beef, but more marbling than the topside beef. Our butcher will cut to the size you require. 1kg will feed about 4 people, 2kg will feed 6-8 people. You can also ask for it on the bone too.