HVAC ducting refers to the network of air ducts used in Heating, Ventilation, and Air Conditioning (HVAC) systems to distribute and remove air within a building. These ducts deliver conditioned air (heated or cooled) to rooms and return air back to the system for reconditioning. HVAC ducting systems are typically made from sheet metal, fiberglass, or flexible plastic, and are designed for optimal airflow efficiency, energy conservation, and indoor air quality. Proper design, insulation, and sealing are essential to ensure effective temperature control and minimal energy loss in residential, commercial, and industrial buildings.