McQuay Duct Sizer Free Download (HVAC Duct Sizing Tool for Engineers)
If you’re an HVAC engineer or MEP draftsman working on duct design, you already know how important it is to size ducts accurately. McQuay Duct Sizer is one of the most trusted free tools for quick, reliable, and easy duct sizing. In this post, you can download McQuay Duct Sizer for free, along with installation instructions and basic usage guide.
What is McQuay Duct Sizer?
McQuay Duct Sizer is a lightweight software developed by Daikin (formerly McQuay) for quick duct dimension calculation. It helps engineers determine the optimal duct size based on airflow (CFM), velocity, and pressure drop — all within seconds.
It’s commonly used in:
- HVAC system design
- MEP load calculation workflows
- Preliminary duct layout planning
- Education and training purposes
Key Features of McQuay Duct Sizer
- Supports rectangular & circular ducts
- CFM to duct size calculation
- Pressure drop estimation
- Adjustable air velocity limits
- Very fast and easy to use (lightweight .exe file)
Who Should Use It?
- HVAC Design Engineers
- MEP Draftsmen & Consultants
- Engineering Students
- Site Engineers needing quick references
System Requirements
- OS: Windows (XP to Windows 11)
- Installation: No installation required (Portable)
- File Size: Less than 1 MB
- Compatibility: 32-bit & 64-bit supported
File Information
- Software Name: McQuay Duct Sizer
- Version: Latest (v6.4)
- Type: Portable EXE (no setup required)
- Size: ~349 KB
- Language: English
Installation Instructions
- Download the zip file
- Extract it anywhere on your PC
- Run DuctSizer.exe directly — no setup needed
You can even keep it on a USB and use it on any Windows machine.
McQuay Duct Sizer Free Download
Click the link below to get the McQuay Duct Sizer. You’ll be redirected to a secure download page.
Final Thoughts
McQuay Duct Sizer is a must-have for every HVAC engineer and draftsman. It’s portable, fast, and saves valuable time when designing duct systems. Whether you’re in the office or on-site, this free tool gets the job done.
For more HVAC tools, DWG blocks, and tutorials — keep visiting MEPBase.com.