There was a download of SDUCT HVAC DuctWork 20.0 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available.
We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. This program was originally created by DuctiSoft inc. The program lies within Photo & Graphics Tools, more precisely 3D Design. The most popular version of the software 20.0.
From the developer:
SDUCT is a complete and simple HVAC ventilation ductwork Tool for AutoCAD. This tool helps reduce drawing time in AutoCAD. SDUCT was created for any level of CAD user. It will automatically create Layers, Linetype, text, colors, etc. All standards settings, accessories, Flexible, lining, elbows, symbols, dimensions can be customized.
You may want to check out more software, such as Design Master HVAC, HVAC Tools or Open Book HVAC Certifications, which might be related to SDUCT HVAC DuctWork.