: The current major release features cloud-based access via a one-year subscription.
Request an offline activation file from ASHRAE customer support. You will need to provide your installation ID and a proof of purchase.
: Users can preview and print table data (.tbl files) or export results for further analysis. Free vs. Paid Versions DFDB Lite (App Store) Full Desktop/Web Version Cost Free Paid Subscription Fitting Count Select supply/return/exhaust fittings 200+ comprehensive fittings Platform iOS (iPhone/iPad) Desktop (Cloud-based) Usage Quick field calculations In-depth professional design How to Install
In Excel, go to File > Options > Add-ins > Manage COM Add-ins . Manually add the ASHRAE_DuctDB.xla file from the installation directory.
from the ASHRAE website or your campus portal. The file name is typically: ASHRAE_Duct_Fitting_DB_v60_Setup.msi
If you have purchased the software and are having trouble installing Version 6.0 on modern Windows systems (Windows 10/11), consider the following: