Sarouk rugs are among the most luxurious classically derived, room-sized Persian carpets.  They were produced in the Arak region, not far from where Fereghans and Sultanabads were made. Some of the early examples were so closely related to Fereghans that they have been designated as Sarouk-Fereghans. While the latter tend to have medallion designs, Sarouk carpets from about 1900 onward were mostly produced in an allover format, with dense sprays or bouquets of flowers and vines arrayed across the carpet symmetrically, on a deep blue or burgundy ground. This latter type is known for its soft, velvety wool and fairly thick pile.