Ashrae Duct Fitting Database Version. 6.00.05 May 2026

ASHRAE Duct Fitting Database Version 6.00.05: The Ultimate Guide to Precision HVAC Design

Pros

• Unrivaled Accuracy: If you are doing manual duct sizing or debugging a system that isn't performing to spec, this is the definitive data source. It eliminates the guesswork found in generic Excel spreadsheets.
• Calculation Transparency: The software doesn't just give a number; it shows you the math. You can view the inputs, the velocity pressure, and the resulting loss coefficient ($C$), making it easy to document your work in design reports.
• Search and Filtering: The interface allows you to quickly filter by fitting type (e.g., Round to Rectangular transitions, Fire Damper losses). Finding the correct fitting ID is significantly faster than flipping through the ASHRAE Fundamentals Handbook.
• Stability: The software is lightweight and stable. It runs reliably on older Windows machines and does not require high-end graphics cards.

ASHRAE DFDB Version 6.00.05 is designed for Windows-based environments. It is typically distributed as a standalone desktop application. While newer versions or web-based iterations may exist, 6.00.05 is often preferred in specific engineering firms for its stability and consistency with legacy project data. Conclusion ashrae duct fitting database version. 6.00.05

. This version transitions the tool into a modern, cloud-accessible subscription service, providing precise loss coefficients for over 200 different fitting types. Key Updates in Version 6.00.05 ASHRAE Duct Fitting Database Version 6