how much are hay bales
âAt an average cost of $15 for 100 lb bales the cost per ton would approximate $300 per tonâ. âHay in the Pacific NW has been at $345 per ton for several years. Both orchard grass and alfalfaâ. âGood square bales are around $140 a ton, good clean round bales are still under $100 a ton.â.