Ashrae Duct Fitting Database Excel Now

The Gold Standard: What is the ASHRAE DFDB?

For decades, calculating the pressure loss through ductwork was a tedious affair involving charts, rulers, and the iconic "Trane Ductulator" wheel. ASHRAE (The American Society of Heating, Refrigerating and Air-Conditioning Engineers) formalized this data into the Duct Fitting Database.

Massive Library: Contains loss coefficient tables for over 200 types of fittings. ashrae duct fitting database excel

Pictorial Previews: Includes visual outlines for each fitting, ensuring engineers select the correct geometry for their specific design. The Gold Standard: What is the ASHRAE DFDB

Understanding the database structure

The official ASHRAE Duct Fitting Database (DFDB) is primarily sold as a standalone cloud-based software subscription rather than a raw Excel spreadsheet. While a direct "Excel version" of the entire database is not officially sold by ASHRAE, you can integrate the data into Excel through several official and third-party methods. Official Access and Excel Integration Massive Library : Contains loss coefficient tables for

Step 2: Use XLOOKUP to Pull Coefficients

Assume your database is in a sheet called ASHRAE_DB. Your design sheet is Duct_Calc.