Top 10 Best Residential Duct Design Software of 2026

Right-Suite Universal from Wrightsoft is a comprehensive HVAC design software suite tailored for residential applications, integrating ACCA Manual J load calculations, Manual D duct design, Manual S equipment selection, and pricing tools into a single platform. It enables users to create detailed 2D/3D models of duct systems, perform automated sizing based on equal friction or static pressure methods, and generate professional reports for code compliance. The software streamlines the entire design workflow from site survey takeoff to final proposal, making it a industry standard for precision in residential duct design.

DuctCalc from Carmel Software Engineering is a specialized residential duct design software that automates the sizing and layout of HVAC duct systems according to ACCA Manual D standards. It supports multiple design methods including equal friction, static regain, constant velocity, and velocity reduction, while calculating airflow, friction rates, velocities, and static pressures. The tool generates detailed reports, duct charts, and layouts to assist HVAC professionals in creating efficient, code-compliant installations for homes and light commercial spaces.

CoolCalc is a cloud-based HVAC software platform designed for residential load calculations (Manual J), duct design (Manual D), and equipment selection (Manual S). It automates the sizing and layout of duct systems, generating detailed reports, diagrams, and takeoff sheets to ensure compliance with ACCA standards. The tool streamlines workflows for HVAC professionals by integrating these calculations into a single intuitive interface accessible from any device.

Ductsize from Elite Software is a robust desktop application designed for sizing HVAC duct systems in residential and light commercial projects, using proven methods like equal friction, static regain, constant velocity, and T-method. It inputs zone loads, airflow requirements, and system constraints to output optimal duct dimensions for round, rectangular, and flat oval ducts, complete with pressure loss calculations and fitting details. The software generates professional reports and diagrams, making it suitable for ensuring energy-efficient and code-compliant designs.

EnergyGauge USA is a comprehensive residential building energy analysis software suite that includes specialized tools for HVAC load calculations per ACCA Manual J, duct design per Manual D, and equipment sizing per Manual S. It enables users to model entire home energy performance, optimize duct layouts, and generate compliant reports for residential projects. The software integrates 3D graphical interfaces for duct design, pressure loss calculations, and airflow distribution, making it a robust solution for HVAC professionals focused on energy-efficient residential systems.

Carrier's Hourly Analysis Program (HAP) is a comprehensive HVAC software primarily designed for detailed hourly load calculations, energy analysis, and system sizing across residential and commercial buildings. For residential duct design, it offers integrated tools for duct sizing, airflow distribution, and pressure loss calculations based on precise room-by-room loads derived from ASHRAE methods and extensive weather data libraries. While powerful, its duct design module is more optimized for larger systems rather than simple residential layouts.

TRACE 3D Plus is a comprehensive building energy modeling and HVAC system design software from Trane Technologies, enabling detailed simulations of energy use, load calculations, and HVAC performance across various building types, including residential. It supports duct system sizing and analysis as part of whole-building energy modeling, integrating equipment libraries and weather data for accurate predictions. While powerful for integrated design, it is more oriented toward commercial applications than standalone residential duct design.

EnergyPro is a comprehensive energy modeling software tailored for California Title 24 compliance, offering residential duct design capabilities integrated within its whole-building simulation framework. It enables users to model duct systems, calculate airflow distribution, pressure losses, and ensure HVAC sizing meets energy code requirements. While not a standalone duct design tool, it provides essential sizing and compliance documentation for residential projects.

Autodesk Revit is a comprehensive Building Information Modeling (BIM) software with robust MEP capabilities, enabling detailed 3D modeling, routing, and sizing of residential duct systems. It supports automatic calculations, pressure loss analysis, and integration with architectural and structural elements for coordinated designs. While powerful for complex projects, it is not a standalone duct design tool and requires significant expertise for optimal use in residential applications.

DuctSizer from Daikin Applied is a free duct sizing software that calculates optimal duct dimensions for HVAC systems using methods like constant friction, static regain, constant velocity, and T-method. It supports sizing for supply, return, and exhaust ducts, generates detailed reports with velocity, pressure, and sizing data, and includes tools for fan selection and noise calculations. While powerful for precise airflow distribution, it is primarily designed for commercial applications and requires adaptation for residential use.