Many engineers use advanced, macro-enabled Excel spreadsheets for duct sizing. Since Microsoft Excel runs natively on Mac, these templates serve as a highly customizable alternative to the McQuay app. Method 3: Mobile Apps on Apple Silicon Macs
While the official McQuay (now Daikin Applied ) desktop software is designed for , Apple users have several modern paths:
Using a virtual machine can be resource-intensive, but the Duct Sizer is a lightweight application (around 124 KB), so even on a virtual machine, it should run quickly. Using a Mac-native app from the App Store will provide the best performance.
For absolute stability, run a full Windows virtual machine. mcquay duct sizer for mac
For users who want to avoid installations, several web-based "Ductulators" provide the same McQuay-style calculations (CFM, velocity, and pressure drop) through any browser, including Safari or Chrome on Mac. file on your Mac? Ductulator - Duct Sizing - App Store
To get the most out of the software:
— ignore. The app will open a small classic Windows dialog. Input CFM, friction, velocity limit, click “Calculate.” It works. Using a Mac-native app from the App Store
An extensive search reveals that McQuay (now Daikin Applied) never released an official, native version of its legacy "McQuay DuctSizer" software for the macOS platform. The original, widely used application was built exclusively as a 16-bit or 32-bit Windows executable (.exe).
The most seamless way to run Windows HVAC tools alongside Mac apps. CrossOver:
| Feature Category | Specific Capabilities | |---|---| | | Round and Rectangular ducts | | Calculation Methods | Equal Friction Method (maintains constant friction loss per unit length) and Equal Velocity Method (keeps air velocity constant) | | Unit Systems | Metric and Imperial units | | Key Outputs | For rectangular ducts: Width and Height; for round ducts: Diameter; Friction loss; Air velocity | | Data Export | Can export results to Excel for further analysis | | Portability | Works without installation (portable software) | file on your Mac
The first and most crucial fact to understand is that McQuay (Daikin) has never released a native macOS version. Therefore, there is no direct "download and install" for a Mac. This does not mean Mac users are out of luck, but it does mean you need a strategy.
For the next three hours, Elias worked in a flow state. He sized the return shafts, calculated the equivalent diameters for the flex runs, and exported the schedules directly into his BIM model. The software allowed him to annotate the drawings instantly, marking the critical path for the contractors.
He grabbed his coat and headed for the elevator. He wasn't just carrying a laptop anymore; he was carrying a digital blueprint for the invisible breath of the building, sized to perfection.
Click "Create New Blank Wrapper" and name it "McQuay Duct Sizer".
Allows for "Size by Airflow" or "Size by Dimensions" modes and supports rectangular, round, and oval duct shapes. Ductulator - Duct Sizing: