AIRAH Professional Certificate in HVAC&R Fundamentals – Module 2: Duct System Design for HVAC

Duct System Design for HVAC
Module 2 in the AIRAH accredited Professional Certificate in HVAC&R Fundamentals (Air Systems Fundamentals)

This online course looks at the basics of ductwork design. It is designed to familiarise you with the design, selection, and application of ductwork systems in HVAC applications.

Why enrol?

This course is part of the AIRAH Summer Skill Up, with discounted registration pricing available until February 28, 2023! Please visit for more information.

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Explore AIRAH’s professional diplomas and certificates and our other short technical courses in HVAC, sustainability, refrigeration, and water treatment.

About this course

This course looks at the basics of ductwork design. Starting from the fundamental objectives for the ductwork system, it explains the pressure losses that occur in a system and how to calculate them. It also steps through the duct design procedures, looks at ways of sizing the system, and concludes with an overview of some other aspects of duct design. This includes materials selection, noise, duct sealing/leakage, and delivering energy-efficient ductwork solutions.

This course is an individual module in the Professional Certificate in HVAC&R Fundamentals as part of the Air Systems Fundamentals Certificate.

Topic highlights
  • Factors affecting ductwork system design
  • Understanding system pressure losses
  • Duct sizing methods
  • Pressure loss of fittings
  • Designing a ductwork system
  • Duct design calculation example
  • Other aspects of duct design
This module is designed for...

This Professional Certificate in HVAC&R Fundamentals and its eight modules is suitable for graduate mechanical engineers, technicians, maintenance personnel, and practitioners involved in the design and/or day-to-day operations of HVAC&R systems.


online delivery
Delivery method
online – start anytime

online delivery
Course length
5–8 hours

Following registration, participants will have six weeks to complete the module.

Why enrol?

Whether you’re a recent industry entrant or a seasoned professional, the Professional Certificate in HVAC&R Fundamentals and its individual units can upgrade your skills and industry knowledge, assisting with your career development.

AIRAH training advantages

For information on the benefits of AIRAH training, please click here.


To register for this individual unit, please click the button below.

Register for Duct System Design for HVAC

Alternatively, register for the AIRAH accredited Professional Certificate in HVAC&R Fundamentals or the Air Systems Fundamentals Certificate (units 1–4). For more information on this online program, please click here.



Course fees

AIRAH members


Pricing includes GST.

AIRAH members save on registration fees for our programs and courses. Not a member yet? Join today to take advantage of a range of benefits for professionals and practitioners in HVAC&R building services. This includes access to essential industry resources (such as the AIRAH Technical Handbook, DA manuals, weekly industry news email, and Ecolibrium – AIRAH’s official journal), as well as free/discounted member rates for our division events, conferences, forums, webinars, and other offerings.

For more information on AIRAH member benefits, please click here.


Please email AIRAH at [email protected] for more information.