Specify the correct CS Louver with the proper free area and pressure drop every time.

Input your louver's width and height.
Then select your wind load criteria and select Calculate.

If you know your HVAC fan's CFM input your cubic feet per minute requirement.

Click the Calculate button and your specific data will appear.


* Required


Free area :
0.00 %
Free area :
0.00 Sq. Ft.
Free area velocity:
-- ft/min
Pressure drop Intake:
-- H2O
Pressure drop Exhaust:
-- H2O
Clear to try a new model