**HVAC Duct Sizing – Short Description:** HVAC duct sizing is the process of determining the appropriate dimensions of air ducts in a heating, ventilation, and air conditioning system to ensure efficient airflow, energy efficiency, and indoor comfort. Proper sizing considers factors like air volume (CFM), duct length, friction loss, and static pressure. Oversized ducts can reduce a... https://mepdetails.com/hvac-duct-area-calculation-formula-excle/