Ashrae Duct Fitting Database Excel Link !new! May 2026

To effectively use an ASHRAE duct fitting link in Excel, you must have the following data points ready:

The DFDB contains loss coefficient data for over 200 types of duct fittings. It covers: Supply, return, and exhaust systems. Round, rectangular, and flat oval geometries.

ASHRAE does not provide a single, free Excel file containing all raw data due to the complexity of the algorithms. However, there are three primary ways to link this data to Excel: 1. The Official ASHRAE DFDB Software ashrae duct fitting database excel link

Keep your heating/cooling loads and duct static pressure calculations in one project file.

Link fitting losses directly to your equipment schedules. To effectively use an ASHRAE duct fitting link

Using an Excel-based approach for duct design offers several advantages over the standalone app:

The database allows engineers to input specific dimensions and flow rates to receive an accurate dynamic loss coefficient ( Cocap C sub o ASHRAE does not provide a single, free Excel

), which is vital for proper fan sizing and system balancing. How to Access the "Excel Link"