For the most accurate and official data, ASHRAE offers two primary digital products: ASHRAE Duct Fitting Database (Cloud-Based)
When we refer to the , we are talking about a spreadsheet (or a set of CSV/Excel files) that contains: ashrae duct fitting database excel
Combine fitting losses from ASHRAE with manufacturer data for filters, coils, and grilles in one sheet. For the most accurate and official data, ASHRAE
Most professional designers prefer Excel for consolidating data because it allows you to: and flat oval shapes.
The database provides loss coefficient tables for over 200 types of duct fittings, including round, rectangular, and flat oval shapes.