Description
21mm Slotted Back-to-Back Channel | 3 Metre | HDG | 41x42mm | Twin Strut
This 21mm slotted back-to-back channel is constructed by welding two 41x21mm strut sections to create a strong, rigid 41x42mm profile. Manufactured from 2.5mm thick mild steel and hot dipped galvanised (HDG) for heavy-duty corrosion resistance, this twin channel is ideal for outdoor and exposed high-load support frameworks.
Key Features
- Profile Dimensions: 41mm x 42mm (2 x 41x21mm)
- Length: 3 Metres
- Thickness: 2.5mm – Heavy Duty
- Finish: Hot Dipped Galvanised (HDG) – Corrosion Resistant
- Slot Size: 14x28mm
- Construction: Spot Welded – Back-to-Back
- Compatibility: Fits all Unistrut-type strut fittings and bracketry
- Sold: Individually
Applications
This double 21mm strut channel is ideal for supporting cable containment, mechanical pipework, HVAC installations and structural mounting assemblies in outdoor or exposed environments where a shallower profile than 41mm back-to-back is preferred. The hot dipped galvanised finish gives long-term protection, while the welded twin construction adds strength and rigidity.




















