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315mm dia Large Format Circular Diffuser - Silver/Grey

315mm dia Large Format Circular Diffuser - Silver/Grey

DV-PP SILENT Mixed Flow Fan 150

DV-PP SILENT Mixed Flow Fan 150

2mm Wire Rope 150m Reel

2mm Wire Rope 150m Reel

Wires with Carabina 2mm x 2m - Pack of 10

Wires with Carabina 2mm x 2m - Pack of 10

400mm Dia Plate Mounted Axial Fan - Single Phase

400mm Dia Plate Mounted Axial Fan - Single Phase

Ductwrap - Isover ClimCover Alu2 25mm 18m Roll

 Ductwrap - Isover  ClimCover Alu2 25mm 18m Roll

Offset Taper

Ventilation Ducting  | Rectangular Ductwork | Tapers |  Offset Taper



width in

These tapers are commonly seen in ductwork systems. They are simple in that they only reduce in size in one dimension, and are also offset to one side. This means three of the four sides are flat. The length of each taper will be determined by the slope angle; ductwork specification DW144 stipulates a slope angle of no more than 22.5°. We fabricate them with a slope angle between 20° and 22.5°.

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

Use the drop down menu to select width in. Depth in, and width out can be selected on the following page.



Width in


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