External Spiral Staircase

  • Stylish External Spiral Staircases

    External Spiral Stair
  • Galvanised or Powder Coated

    External Spiral Stair
  • Solid & Robust

    External Spiral Stair
  • Balcony Options

    External Spiral Stair

External Spiral Staircase

Our range of external spiral staircases are supplied made to measure across the UK and beyond.  They are constructed in mild steel and are custom made to the height and diameter required.  There are several different tread and balustrade types to choose from and they are supplied galvanised or powder coated.

They offer a cost effective ways of accessing a rear garden and can even be constructed to incorporate a balcony.

This range of spirals are suitable for all domestic developments and small and medium commercial projects.  Whether it be accessing a roof garden or providing a fire escape from a office block.

Each spiral is constructed using a single steel centre column with steel tapered treads arms bolted to the side.  A top platform is generally located at the top level with the finished floor.

Being custom made, full technical drawings are prepared for each spiral to ensure the correct rotation and height.   Manufacture takes around 8-9 weeks from drawing approval.

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Custom Made Diameters

Tread Options

The tapered steel tread are can be supplied with various steel plates welded on the top or left completely flat to take a client supplied finish such as timber decking or millboard.  There is even the option to create a steel frame for glass treads.

External stringer

An external stringer is a piece of steel that wraps around the perimeter of the spiral, covering the edge of the treads.  It added a swooping, twisting feel to the flight.  This is either supplied as a structural 8mm piece of mid steel which is bolted directly to the treads or a 1.5mm steel cover piece which gives a similar appearance but it less cost.


The external spiral staircases come complete with a square top platform.  This can be enlarged to incorporate a larger platform or even a substantial balcony area.

External Spiral Staircase Gallery

Kit External Spiral Staircases

Within our range we also offer several DIY off=the-shelf kit solutions for outdoor use.  They are not as versatile as their custom made counterparts but offer terrific value and are available very quickly.   Please click the links below for more information.

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External Spiral Staircase Project Case Studies