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Design of Ductwork Systems

6.0 CPD Hours

Standard Rate
£430.00  +VAT
Member Rate
£340.00  +VAT
  • Mechanical Services

Upcoming dates

Book Now

This training is intended to provide an overview and introduction to ductwork design and sizing, including the major components and materials, balancing and commissioning.

The training is suitable for both trainee building services engineers and anyone else who requires a better understanding of ductwork systems and sizing, including the importance of correct sizing for energy efficient/low carbon operation of ventilation systems. This would include those involved in building services engineering and design, architects, installation and contracting, commissioning, and facilities managers.

No previous knowledge of ductwork system design is required. In practice, commercial ductwork sizing is usually undertaken with proprietary software which is not covered by this training.

Learning Outcomes

Delegates would be expected to learn the following:

  • The underlying concepts of duct pressures, resistance to airflow, noise and types of ductwork.
  • How to design a simple ductwork system and size and select appropriate ductwork.
  • An overview of how ductwork systems are balanced and commissioned.
  • Have an overview of other components in a typical ductwork system including fan types, filters, dampers and room air terminals.
  • Understand the building regulations requirements for energy and carbon emissions from ventilation systems.


'Tutor was accessible, friendly and knowledgeable'

'I am happy with the delivery. I am electrically biased, this helps to develop an understanding of mechanical systems'

Delegates would need to have a general understanding of building services including ventilation systems and an interest in learning the engineering principles of ductwork design. However, no previous specific knowledge of ductwork design is required.

Agenda for event
Time Description



Key Concepts and Duct Sizing Methods


Coffee / tea break


Duct Sizing Exercise, Duct Distribution Systems and Fans




Other Equipment, Room Air Distribution and Ductwork Types


Coffee / tea break


Dampers, Noise, Carbon Emissions, Commissioning and Balancing


Close – Q&A


David Butler

David Butler

Manager, HVAC Engineering and Testing, Building Research Establishment Ltd (retired)

David led a team of HVAC specialists involved in research, testing and consultancy relating to HVAC systems and equipment. He has over 30 years experience of designing and undertaking physical mock-up tests, laboratory testing and site investigation and consultancy on the performance and design of building conditioning systems. This included conventional HVAC systems and low energy and passive systems and heat pumps.

Meet the trainer: David Butler, the Design of Ductwork Systems trainer (

Remote - How to join:

This course will be hosted live online on Microsoft Teams. A Microsoft Teams account is not required, you will be sent a link to join.

You can choose to join on your preferred web browser, or if you already have the Microsoft Teams desktop app, click 'join meeting'.  You will then automatically join the course through the app.


The course location will be underneath the respective date, please make your way to the location.

Parking is not available.

Course Materials:

The course presentation and any additional materials will be sent to delegates once attendance is confirmed on the day of the course.

We are working towards being more sustainable, therefore we do not recommend materials to be printed.

What is included?

- Full day training with an industry expert trainer

- CPD certificate

- PDF course materials

- Lunch and refreshments**

**For face-to-face courses

Two simple ways to book:

Card - Use the 'Book Now' button at the top of this web page.

Invoice - Please fill in the booking form herePlease note you are only booked onto the course once Training has processed the form.

* If you are having any difficulties please either email us at [email protected].

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