Mcquay Duct Sizer Software Free Download !!top!! Jun 2026

Always verify your design with local building codes (IMC, UMC, or SMACNA standards), but for pure sizing math, McQuay Duct Sizer remains unbeaten.

: By entering any two variables—such as airflow (CFM) and head loss—the software automatically solves for the remaining parameters, including duct size and air velocity.

: Handles both rectangular and round duct sizing, providing equivalent diameters where necessary. Unit Support : Compatible with both I-P (Inch-Pound) SI (International System) Lightweight Utility mcquay duct sizer software free download

The Internet Archive stores old software distribution CDs.

Despite being nearly two decades old, the McQuay Duct Sizer remains a masterpiece of utilitarian software. Always verify your design with local building codes

If you have a noise constraint, check the radio button instead of Friction . Enter 1000 FPM, and the software will calculate the friction loss automatically.

The McQuay Duct Sizer often included features to calculate the pressure drop through fittings. By selecting elbows, transitions, or take-offs, the software would calculate the "Equivalent Length" of straight duct, adding to the total static pressure requirement. This feature is vital for fan selection. Unit Support : Compatible with both I-P (Inch-Pound)

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If you choose to download legacy software from a third-party site, always run the file through a virus scanner and use a sandbox environment to test it before installing it on your main work computer.

Streamline Your HVAC Design: The Ultimate Guide to McQuay Duct Sizer