Design Master HVAC integrates the duct sizing calculations directly into the drafting of the ductwork. You set the CFM values at the diffusers, define a sizing method, and the software takes care of the rest. Never spin a Ductulator again.
Choose the duct sizing method that is right for your project. You can even change how you size ducts midway through a system. Use static regain from your main air handler to the VAV boxes, and then slow it down using the constant pressure drop method.
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