Extremely easy to use; excellent technical support; no Windows license required. Cons: Requires a paid annual subscription.
The Daikin Applied Design Software Tools suite—formerly known as McQuay—provides the official Duct Sizer as a legacy .exe application.
If you depend on this tool daily:
Specialized for quick sizing on macOS 15.6+ and M-series chips. App Store High-accuracy tool co-branded with ASHRAE standards. 4. How to Use a Duct Sizer (Best Practices) mcquay duct sizer for mac
Here’s a short piece you can use for documentation, a script, or a user guide on the for MAC (McQuay Air Conditioning):
The traditional McQuay DuctSizer (often downloaded as DuctSizer.exe ) is a legacy Windows application.
Many manufacturers and engineering groups have shifted to cloud-based apps. These run perfectly in Safari or Chrome on a Mac. Extremely easy to use; excellent technical support; no
It utilizes an intuitive slider-based control system, allowing users to quickly adjust inputs like airflow (CFM) or head loss to see immediate changes in duct size. Key Features: Supports circular, rectangular, and oval duct shapes.
Finding an official version of the is a common challenge for HVAC engineers, as the legacy software was originally developed as a native Windows application. McQuay International (now part of Daikin Applied ) built this highly efficient, Visual Basic-based desktop tool specifically for the Windows environment.
Choose if you want the exact McQuay tool without paying for a Windows license. If you depend on this tool daily: Specialized
Do you need to run (like Carrier HAP or McQuay Pipe Sizer)?
Download a Windows 11 ARM ISO directly through the Parallels interface.
Method 1: Running the iOS/iPadOS App on Apple Silicon (M1/M2/M3)