$10,698 $451/mo: 3yr. $406/mo: 4yr. $361/mo. 5yr. Ready to place and allow those plants to grow! 12'x20' with electric exhaust fan, shelves and pvc pot-hangar. Shown with Charcoal sides. Perfect for starts, over-wintering, growing plants needing a special environment and more! Electric exhaust fan is programmed via thermostat. Many colors to choose from! Built with pride by our Amish builders at D&M. Sizes available up to 16'x50'.