Air Ductwork CAD Blocks | Free HVAC Duct Layout DWG

Download professional-quality Air Ductwork CAD Blocks in DWG format, ideal for HVAC designers, MEP engineers, and building contractors. This collection includes detailed duct layouts, elbows, reducers, branches, fittings, diffusers, and ductwork accessories—clearly presented in plan and elevation views. All CAD blocks are accurately scaled, fully editable, and compatible with AutoCAD and other major CAD software. Perfect for designing ventilation and air conditioning systems in residential, commercial, or industrial facilities, these blocks streamline the drafting of efficient, code-compliant HVAC layouts.