CAD 3D Rectangular Exhaust Duct

I’m ready to move an air-handling project into fabrication and need a precise 3D CAD model of a rectangular exhaust duct section. I already have the exact dimensions, connection points, and any flange details you’ll need; once we start I’ll hand over the full spec sheet and sketches.

The model should accurately reflect internal and external measurements so that material [either aluminum or PVC] cut lists can be generated without extra rework. As long as the file is delivered in a mainstream CAD format—STEP, DWG, SolidWorks, or Revit family—feel free to use the platform you’re most comfortable with.

Deliverables
• Fully parametric 3D model of the rectangular duct section
• Dimensioned 2-D drawing extracted from the model (PDF or DWG)
• A short note confirming that all supplied dimensions have been applied exactly

If you have questions about flange sizes, angles or dimensions, let’s clarify them early so the first pass is production-ready. Looking forward to seeing your work.