HVAC ducting is a system of air ducts used in Heating, Ventilation, and Air Conditioning (HVAC) to transport air throughout residential, commercial, or industrial buildings. These ducts carry conditioned air (heated or cooled) from the HVAC unit to different rooms and return air back for reconditioning. Common duct materials include galvanized steel, aluminum, flexible ducting, and fiberglass-lined ducts, each chosen based on application, insulation needs, and airflow efficiency. Proper ducting design is essential for maintaining energy efficiency, indoor air quality, and consistent temperature control across zones.