While ASHRAE has released standalone software and CD-ROMs historically, the industry’s gold standard is the . Why?
| Your situation | Best method | |----------------|--------------| | Occasional use, no coding | Buy DuctLink add-in | | Already have ASHRAE DLL, use Excel daily | VBA wrapper (Method A) | | Python user, want flexible reporting | xlwings + ctypes (Method B) | | Cannot purchase DLL | Static lookup table (Section 7) | ashrae duct fitting database excel link
Sites like MEP Excel offer custom-built Duct Fitting Calculators that use VBA and external data folders to mimic ASHRAE functions within an Excel interface. While ASHRAE has released standalone software and CD-ROMs