45-Degree Rectangular Duct Elbow
45-Degree Rectangular Duct Elbow
45-Degree Rectangular Duct Elbow – Galvanised Steel, Made to DW144
Our 45-degree rectangular duct elbow (45° square duct bend) is used for gentle changes of direction and for offsetting a duct run around beams, pipes and other obstacles. A shallower bend means less turbulence and lower pressure loss than a sharp 90° turn. Fabricated in our Birmingham workshop from galvanised steel, in accordance with DW144 – the UK specification for sheet metal ductwork.
Sizes & Prices
- 30 x 30 cm – £65
- 15 x 60 cm – £70
- 40 x 40 cm – £75
- 30 x 60 cm – £85
- Custom size – £110
Custom-Sized Duct Bends
Need it to match existing ductwork? Select Custom size and write the width and height you need in the order note at checkout, or contact us before ordering.
Specifications
- Material: Galvanised steel
- Standard: Manufactured in accordance with DW144
- Angle: 45 degrees
- Approx. weight: 10–15 kg depending on size
- Manufacturing time: 4 working days (made to order)
Delivery
Delivered across England and Wales for a flat £60 per order, typically within 7–9 working days including manufacturing.
Complete Your Duct Run
- 90-degree rectangular duct elbows
- Rectangular (square) ducting by the metre
- Square-to-round transitions
- Threaded rod and cantilever brackets for support
FAQ
When should I use a 45° bend instead of a 90°?
Use two 45° bends to step a duct run sideways or around an obstacle, or wherever space allows a gentler turn – it keeps airflow smoother.
Can you make a size that isn't listed?
Yes – choose Custom size and give us your dimensions.