Top 10 Best Duct Software of 2026

Right-Duct from Wrightsoft is a premier duct design software that automates HVAC duct sizing and layout using ACCA Manual D standards for residential and light commercial applications. It integrates seamlessly with Wrightsoft's Right-Suite Universal for load calculations, allowing users to input room-by-room airflows and generate optimized duct systems with equal friction or static regain methods. The software produces detailed reports, material takeoffs, and 2D/3D drawings, streamlining the design process from concept to installation.

Ductsize by Elite Software Systems is a professional HVAC duct design and sizing program that calculates optimal duct sizes for residential, commercial, and industrial applications using methods like equal friction, static regain, velocity, and constant pressure drop. It supports complex zoning, flex ducts, and fittings, automatically generating duct diagrams, pressure loss reports, and bills of materials. The software integrates with other Elite tools like RHVAC for a seamless workflow in load calculations and system design.

DuctSizer Pro is a Windows-based duct sizing software developed by Carmel Software for HVAC professionals, enabling precise calculation of duct sizes for round, oval, and rectangular configurations using methods like equal friction, static regain, constant velocity, and reduced velocity. It incorporates ASHRAE and SMACNA standards, computes pressure losses, velocities, and fitting losses, and generates customizable reports with diagrams and schedules. The tool supports both low and high-velocity systems, making it suitable for commercial and industrial applications.

CoolCalc Manual D is a cloud-based HVAC software tool specializing in duct design and sizing calculations compliant with ACCA Manual D standards for residential and light commercial systems. It automates the process by taking inputs like airflow rates, static pressures, equipment details, and room loads to produce optimized duct layouts, velocity profiles, pressure drops, and fan sizing recommendations. The software generates professional PDF reports, SVE diagrams, and material takeoffs, making it suitable for design documentation and permitting.

Duct Designer from H2K, Inc. is a Windows-based software specialized in HVAC duct system design, sizing, and analysis for residential and light commercial applications. It employs industry-standard methods like equal friction, constant velocity, and static pressure regain to optimize duct layouts, calculate pressure losses, and generate detailed reports. The tool supports zoning, VAV systems, and integration with load calculation software, making it a reliable choice for precise ductwork planning.

MagiCAD for Revit is a comprehensive MEP plugin for Autodesk Revit, specializing in advanced duct design, sizing, and routing for HVAC systems. It provides intelligent tools for automatic duct sizing based on pressure loss calculations, fitting optimization, and integration with manufacturer-specific product libraries. The software supports full BIM workflows, including clash detection, fabrication outputs, and compliance with international standards like ASHRAE and Eurovent.

Revit MEP, from Autodesk, is a robust BIM platform tailored for mechanical, electrical, and plumbing design, with advanced capabilities for HVAC ductwork modeling, sizing, and routing. It enables parametric 3D modeling of duct systems, including fabrication details, pressure loss calculations, and integration with fabrication databases for precise manufacturing. The software supports clash detection, energy analysis, and collaboration in a centralized model, making it suitable for complex building projects.

Carrier's Hourly Analysis Program (HAP) is a comprehensive HVAC software tool primarily focused on performing detailed hourly load calculations, energy analysis, and system sizing for commercial and residential buildings. As a duct software solution, it includes capabilities for airside system design, including duct sizing, airflow distribution, and pressure drop calculations integrated within its whole-building simulation engine. HAP supports a wide range of HVAC systems and equipment, making it suitable for engineers needing accurate, code-compliant duct layouts tied to dynamic load conditions.

TRACE 3D Plus is a comprehensive building energy modeling software developed by Trane, featuring advanced HVAC system simulation capabilities that include detailed ductwork modeling, sizing, and performance analysis within whole-building energy simulations. It enables engineers to predict airflow distribution, pressure losses, and energy consumption for duct systems integrated with other building systems. While powerful for simulation-driven duct design, it is not a standalone CAD tool focused solely on duct drafting or layout.

OpenBuildings Designer from Bentley Systems is a comprehensive BIM software suite focused on building design and analysis, offering specialized tools for HVAC ductwork modeling, 3D routing, sizing, and fabrication detailing. It integrates duct systems seamlessly with architectural, structural, and other MEP components for coordinated, clash-free designs. The software supports standards-compliant duct libraries, airflow calculations, and automated documentation, making it suitable for complex building projects.