: The full desktop/cloud version can be acquired through the ASHRAE Bookstore Implementation and Support
: Purchase an annual subscription from the official ASHRAE Bookstore. This version is now typically cloud-based, ensuring you always have access to the latest version, such as v6.00.05. Why Avoid Pirated "Full Install" Downloads? ashrae.orghttps://www.ashrae.org Duct Fitting Database - ASHRAE : The full desktop/cloud version can be acquired
The is an essential professional tool for HVAC design engineers, but it is not available as a "full install" free download . While third-party sites may claim to offer free full versions, these are often unauthorized or legacy files. ashrae
Always verify your right to use the software. Support ASHRAE's continued research by purchasing a membership or using their online tools when possible. But for the veteran engineer who needs a reliable, permanent local solution — Version 60 is a true classic. While not the interactive software
The full, professional version of the ASHRAE Duct Fitting Database is ; it is a proprietary tool published by ASHRAE.
While not the interactive software, the raw data for duct fitting loss coefficients is available in the ASHRAE Handbook—Fundamentals (Chapter 21: Duct Design). Many university libraries provide free digital access to the ASHRAE Handbooks for students.