The offset is made out of 0.8mm or 1.0mm galvanised steel depending on the size specified. The offset is used to make best use of the space if an obstacle is present. DW144 specify that the angle needs to be set at 30° and therefore this will determine the length of the duct.
If there is a large offset then the design may need to be a combination of bends and straights. Please upload your drawings and we can advise accordingly and provide you with a quote.
Each end can be finished with the following options: Frame, Loose Frame, Male End, Female End, Plain, Flange or Internal Flange.
Prices vary depending on size and quantity. For an indication of prices, please see our pricing structure or contact the office on 01638 666489 for a FREE no obligation quote.
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