Flex duct 05 on most metal duct calculator round metal pipe 06 on most metal duct calculators field duct sizing chart rectangular sheet metal duct 07 on most metal duct calculators step one identify the volume of air that will be passing through the duct.
Round duct sizing chart.
Duct size chart calculate duct dimensions for both rectangular and round ducts.
And it shows the velocity and or static pressure loss of air for both types of duct shape.
These duct chart are based on equal friction method with a friction loss value 0 1 inch 100ft.
This equal friction method of duct sizing should be adequate for normal residential furnace heating and air conditioning applications.
Residential duct sizing guide the following duct sizes are based on a fraction drop of 10 inches per 100 feet of lineal duct.
It calculates both rectangular and round duct dimensions.
Download free duct sizing chart pdf according to ashrae standard.
Duct system sizes and airflow quick chart created date.
Flexible duct round metal pipe 750 1200 14 16 design airflow 50 85 125 1500 2000 180 240 325.
Ductulator calculats duct dimensions using equal friction method or velocity method.
Online ductulator free duct size calculator.