Description
21mm Slotted Channel – 4 Metre (Hot Dip Galvanised)
The 21mm slotted channel (Strut Pro) is a versatile heavy-duty support section designed for use in electrical, mechanical, and construction frameworks. Manufactured from 2.5mm thick mild steel and finished with a hot dip galvanised (HDG) coating, it provides excellent protection against corrosion and is ideal for outdoor or industrial applications.
Key Features:
- Dimensions: 41mm x 21mm profile, 4 metre length.
- Thickness: 2.5mm heavy-duty mild steel for enhanced load-bearing capacity.
- Finish: Hot dip galvanised (HDG) for superior corrosion resistance in external environments.
- Slot Size: 11mm x 28mm or 14mm x 28mm (depending on stock availability).
- Compatibility: Fully compatible with all standard strut, bracketry, and Unistrut-type systems.
- Application: Suitable for supporting cable trays, ductwork, mechanical frameworks, and roof systems.
- Quantity: Sold individually.
This hot dip galvanised slotted channel provides reliable strength and long-term protection in demanding environments. In addition, its 41x21mm profile ensures full compatibility with Unistrut-style fittings and accessories. As a result, it’s ideal for contractors and installers needing a robust external-grade framing solution.
Ordering & Delivery
✔ Trusted UK Delivery – 95% of orders dispatched within 24 hours
Most orders arrive within 1–2 working days as standard.
Note: Heavy or bulk orders, as well as special cut lengths or non-standard products, may take slightly longer to dispatch.
For bulk quantities or trade pricing, please call our team on 0121 270 8507.

















