Panels push fit together to form a rectangular cross section. Panels are supplied with aluminium flanges. Standard rectangular ducting can be assembled end-to-end for any length run of straight ductwork. Any duct element is composed of two horizontal panels and two vertical panels. The enclosed internal cross section is the height by the width; this is the full area for internal airflow. To determine the external height and widths, simply add 70mm to the internal dimensions. To find the external flange to flange outside width, simply add 110mm to the internal dimensions.
- Inner Width (X1)
- Inner Height (Y1)
- Outer Width (X2) = Width + 70
- Outer Height (Y2) = Height + 70
- Flange Width Envelope (X3) = Outer Width + 110
- Flange Height Envelope (Y3) = Outer Height + 110
Available in the following size combinations: