Ashrae Duct Fitting Database Version 60 Free Download Full Install Online

Many HVAC design tools (e.g., Trane Duct Designer, Carrier HAP, Elite Software) license DFDB internally — you may not need a separate install.

The user interface includes faster search by ASHRAE fitting number, description, or application type (supply, return, exhaust, or fresh air). Many HVAC design tools (e

If you have purchased the software and are having trouble installing Version 6.0 on modern Windows systems (Windows 10/11), consider the following: The user interface includes faster search by ASHRAE

Solution: In Excel, go to File > Options > Add-ins > Manage COM Add-ins. Manually add the ASHRAE_DuctDB.xla file from the installation directory. If you have purchased the software and are

The ASHRAE Duct Fitting Database is a digital library of loss coefficients for over 2,000 duct fittings. It is the digital companion to the ASHRAE Handbook of Fundamentals and the HVAC Duct Construction Standards. Each fitting includes detailed geometry, loss coefficients (C values), and reference velocity pressures.

Version 60 represents a mature, stable release that corrected several legacy bugs from earlier versions while adding support for modern operating systems (up to Windows 10/11). It is widely considered the last "classic" version before ASHRAE moved toward cloud-based subscription models.