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315mm dia Large Format Circular Diffuser - Silver/Grey

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Square to Rounds

Ventilation Ducting  | Rectangular Ductwork | Square to Round Transitions |  Square to Rounds



Ductwork Transistions

Square to Rounds


Ductwork square to rounds, as the name suggests, convert square or rectangular ductwork to round wherever such a transition is required. This may be to connect rectangular ductwork to ventilation equipment designed for a circular connection, or to change the duct shape to pass through a confined space. In confined areas such as ceiling voids (the space between the suspended and structural ceiling of a building) it's common to see ductwork runs comprised of both rectangular and round spiral duct - the main duct and branches are rectangular as the equivalent sized round duct may not fit into the ceiling void. Square to rounds provide the means to make this transition.

Note that rectangular ductwork is made to order. Please therefore take manufacturing time into account when scheduling your project.




There are many possible shapes and sizes of square to rounds. Most are symmetrical but some may be offset to one side or two sides. They can also be angled, effectively producing a combined elbow and transition in one. We are able to manufacture any square to round required if a clearly dimensioned drawing is supplied to us. Otherwise it is possible to order them online but with limitations to the size and general design (symmetrical and offset to one side - one side is flat - can be defined on the website). Square to rounds offset to two sides and/or with a larger offset will require a drawing.

Note that with offset square to rounds the flat side will correspond with the 'width' side. If you require the other side to be the flat side i.e the 'depth' side as shown in the drawing, go back and make the width the depth and vice-versa.


If you need to calculate the size of the square end of a transition piece relative to the round end, or vice-versa. Please use the link below:

How to calculate square to round transition sizes..


Please use the drop-down menu below to select the width of the square to round required as depicted in the drawing to the right. Depth, diameter, and style can be selected on the following pages.

Width

Ductwork Square to Rounds
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