The UK's largest stockist and supplier of screw piles

RADIX Extendable Screw Piles

Low-carbon foundations capable of reaching load-bearing depths

RADIX Extendable Screw Piles offer an efficient method for raising ground levels without extensive excavation and ensure that foundations are installed to the required depths to achieve maximum load-bearing capacities in areas of soft ground.

The RDX EXT range is available in 76mm, 89mm and 114mm diameters, with extension pieces in 500mm, 1000mm, 1500mm and 2000mm lengths, and pairing with a flange to interface between any universal or bespoke fittings.

Screw piles are galvanised per BS EN ISO 1461:2009 for long-lasting protection and increased life expectancy. Engineers' certificates and documentation are available upon request.

Applications: Solar arrays and battery storage, holiday lodges, house extensions, modular construction, temporary structures, and more.

Product Catalogue

76mm Screw Piles

The RADIX EXT 76mm Screw Pile range is available with screw tips, extensions, helical extensions and flanges.

  • RDX EXT 76mm Screw

    RDX EXT 76mm Screw

    Load Capacity
    Subject to ground conditions and installation depth*

    Available Lengths (mm)
    1250, 1550, 2050

    RDX EXT 76mm Screw

  • RDX EXT 76mm Extension

    RDX EXT 76mm Extension

    Load Capacity
    Subject to ground conditions and installation depth*

    Available Lengths (mm)
    500, 1000, 1500, 2000

    RDX EXT 76mm Extension

  • RDX EXT 76mm Helical Extension

    RDX EXT 76mm Helical Extension

    Load Capacity
    Subject to ground conditions and installation depth*

    Available Lengths (mm)
    1000

    RDX EXT 76mm Helical Extension

  • RDX EXT 76mm Flange

    RDX EXT 76mm Flange

    Load Capacity
    110kN*

    Available Lengths (mm)
    213

    RDX EXT 76mm Flange

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89mm Screw Piles

The RADIX EXT 89mm Screw Pile range is available with screw tips, extensions, helical extensions and flanges.

  • RDX EXT 89mm Screw

    RDX EXT 89mm Screw

    Load Capacity
    Subject to ground conditions and installation depth*

    Available Lengths (mm)
    1550, 2050

    RDX EXT 89mm Screw

  • RDX EXT 89mm Extension

    RDX EXT 89mm Extension

    Load Capacity
    Subject to ground conditions and installation depth*

    Available Lengths (mm)
    1000, 1500, 2000

    RDX EXT 89mm Extension

  • RDX EXT 89mm Helical Extension

    RDX EXT 89mm Helical Extension

    Load Capacity
    Subject to ground conditions and installation depth*

    Available Lengths (mm)
    1000

    RDX EXT 89mm Helical Extension

  • RDX EXT 89mm Flange

    RDX EXT 89mm Flange

    Load Capacity
    150kN*

    Available Lengths (mm)
    312

    RDX EXT 89mm Flange

extendable ground screw piles over sloping ground

114mm Screw Piles

The RADIX EXT 76mm Screw Pile range is available with screw tips, extensions, and flanges.

  • RDX EXT 114mm Screw

    RDX EXT 114mm Screw

    Load Capacity
    Subject to ground conditions and installation depth*

    Available Lengths (mm)
    1550, 2050

    RDX EXT 114mm Screw

  • RDX EXT 114mm Extension

    RDX EXT 114mm Extension

    Load Capacity
    Subject to ground conditions and installation depth*

    Available Lengths (mm)
    1000, 1500, 2000

    RDX EXT 114mm Extension

  • RDX EXT 114mm Flange

    RDX EXT 114mm Flange

    Load Capacity
    150kN*

    Available Lengths (mm)
    312

    RDX EXT v3 114mm Flange

* RADIX Screw Piles must be selected based on static calculations and results of site-specific ground testing. The manufacturer is not liable for damage caused by insufficient or incorrect selection of screw piles.