Sheet metal & Air Conditioning Contractors’ National Association

Store

Product Added to Cart!
Duct Calculator

Duct System Calculator, Imperial

By SMACNA

Select format:

$

QTY:
Add to Cart
This calculator, complete with detailed instructions, enables HVAC system designers to design an average duct system without additional references. The only calculator in the industry to include the 0.0003 roughness factor duct friction loss data for designing straight, round or rectangular sheet metal ducts.