Bespoke Spiral Staircases

Steel, wood, and steel-and-wood spiral staircases for internal and external use — open tread, any RAL colour, 1250mm and 1500mm diameter. Supply and installation across the East Midlands and South Yorkshire.

Spiral Staircases — East Midlands

Space-Efficient Access for Any Level

A spiral staircase is the most compact way to connect two floor levels — the circular footprint takes up a fraction of the space a straight stair would need, without sacrificing structural integrity or visual impact. Whether you're connecting a loft conversion to the floor below, creating external access from the garden to a raised terrace, or adding a route up to a walk-on steel balcony, a spiral staircase can be the right answer.

We supply and install spiral staircases standalone or as part of a wider balcony or staircase project. All staircases are open-tread — no closed risers. Available in three material combinations, two diameters, two balustrade styles, and any RAL colour.

Material Combinations

All-Galvanised Steel, Steel & Wood, or All-Wood

Spiral staircases are available in three distinct material combinations — each with a different character and suited to different settings.

All-Galvanised Steel

Steel centre column, steel open treads, steel balustrade, steel handrail — everything powder-coated in your chosen RAL colour. The most durable option, particularly suited to external installations and commercial or semi-commercial settings where weather resistance and longevity take priority.

Hot-dip galvanised steel — corrosion protection before powder coating
Fully powder-coated to any RAL colour
Ideal for external use
Maximum weather and wear resistance
Industrial and contemporary aesthetic

Steel & Wood

Steel centre column and structural frame with timber tread inserts — the most popular combination. The warmth of natural wood treads softens the industrial quality of the steel structure, making this a versatile choice that works well in both contemporary and more traditional interiors. Treads are typically beech, oak, or pine depending on the system specified.

Steel frame, timber tread inserts
Most popular combination
Warmer underfoot than all-steel
Suits modern and traditional interiors

All-Wood

Timber centre column, timber treads, and timber or painted wood balustrade — a fully wooden spiral staircase suited to traditional, rustic, or Scandinavian interiors. Available in natural timber finishes (oiled, lacquered, painted) to complement existing joinery. Best suited to internal, dry installations.

Fully timber construction
Natural, lacquered, or painted finishes
Suits traditional and natural interiors
Internal use only

Application

Internal & External Spiral Staircases

The same range covers both internal and external applications — the key difference is the material and coating specification.

Internal Staircases

All three material combinations are available for internal use. Steel-and-wood is the most popular internal option — the timber treads are comfortable underfoot and suit most domestic interiors. All-wood staircases are available for traditional settings. Internal staircases are subject to Building Regulations covering tread dimensions, headroom, guarding height, and handrail specification.

External Staircases

All-steel spiral staircases are the right choice for external installations — every external staircase is hot-dip galvanised before powder coating, giving two layers of corrosion protection. Whether powder-coated in a RAL colour or left in a galvanised finish, external steel staircases are built to last without ongoing maintenance. Popular for providing garden-level access to a raised terrace or walk-on steel balcony. Steel-and-wood can also work externally where the timber treads are a treated hardwood specification — ask us at quote stage.

Balustrade Styles

Vertical Spindles or Swept Post & Rail

Two balustrade styles are available across all our spiral staircase ranges — both provide compliant guarding and follow the helical line of the handrail, but they create very different visual characters.

Vertical Spindles

Individual vertical spindles run from the tread to the underside of the handrail at regular intervals — a clean, traditional balustrade style that suits both steel and wood staircases. The vertical rhythm of the spindles is visually lighter than a solid rail system and pairs well with a wide range of interior styles.

Post & Sweeping Rail

Upright posts at intervals carry a continuous sweeping horizontal rail that follows the helical curve of the staircase below the handrail. This creates a more open, architectural look — less cluttered than individual spindles, with a stronger linear quality. Popular on contemporary all-steel installations and on external staircases where a bold visual character is wanted.

Sizes & Configuration

Diameters, Heights & Options

Both diameter options are available across all material combinations and balustrade styles. Landing treads are optional — useful where the staircase arrives at a mezzanine or balcony edge and a wider top step aids the transition.

1250mm Diameter

The compact option — suitable for private internal and external use, and ideal where floor space is at a premium. Meets Building Regulations minimum diameter requirements for private staircases.

Footprint approx 1.4m × 1.4m including handrail
Up to 4m floor-to-floor
Internal and external use

1500mm Diameter

The wider, more comfortable option — a noticeably easier ascent and descent for everyday use, and the right choice for higher-footfall locations or where Building Regulations require a larger stair.

Footprint approx 1.7m × 1.7m including handrail
Up to 4m floor-to-floor
Internal, external, and commercial use

Landing Tread (Optional)

A landing tread is a wider platform tread at the top of the staircase — useful where the stair arrives at a balcony edge, mezzanine, or doorway and a generous top step makes the transition more comfortable and safer. Optional on all systems.

Open Treads Only

All spiral staircases in our range are open-tread — there are no closed riser options. Open treads give a lighter, more contemporary appearance, allow light to pass between floors, and are standard across both steel and wood systems. They are not suitable where young children under 5 will use the staircase unsupervised.

Finish

Any RAL Colour — Powder Coated to Order

All steel components — the centre column, structural frame, treads (where all-steel), balustrade, and handrail — are powder-coated in your chosen RAL colour. Whether you want a clean RAL 9005 jet black, RAL 7016 anthracite, RAL 9010 pure white, or a bespoke shade to match existing metalwork or joinery, we can produce it.

Powder coating bonds under heat and produces a thick, chip-resistant finish that holds its colour in both internal and external conditions. We use a polyester specification as standard — suitable for external use. Matt, satin, and gloss finishes are all available.

Any RAL Classic colour
Matt, satin, or gloss finish
Polyester powder coat — suitable for external use
Consistent finish across all steel components

See renovation costs →

Related Service

Installing a Walk-On Balcony?

A spiral staircase is one of the most practical ways to provide external access to a raised balcony or roof terrace — it takes up a fraction of the garden footprint that a conventional straight stair would need. We build and install bespoke walk-on steel balconies with composite or timber decking and glass balustrades, and can combine the balcony and spiral staircase into a single project.

See Walk-On Steel Balconies →

Our Process

Initial Quote

Tell us your floor-to-floor height, preferred diameter, material combination, and intended use (internal or external). We can provide a ballpark price without needing a site visit at this stage.

Survey & Specification

Once you're happy with the ballpark, we visit to confirm measurements, check headroom, and agree the full specification — balustrade style, landing tread, RAL colour, and tread material — before fabrication begins.

Fabrication & Installation

The staircase is fabricated and powder-coated off-site to your confirmed spec. Installation is typically completed in a single day — base plate fixed, staircase assembled, handrail secured, top landing plate fixed.

Frequently Asked Questions

We offer 1250mm and 1500mm diameter. The 1250mm is the compact option — suitable for private internal and external use where space is tight. The 1500mm is more comfortable for regular daily use and is required in some Building Regulation scenarios. Both are available across all material combinations and balustrade styles.

Three options: all-galvanised steel (ideal for external and industrial settings), steel-and-wood (the most popular — steel structure with timber tread inserts), and all-wood (for internal traditional or natural interiors). All staircases are open-tread only — we do not supply closed riser spiral staircases.

Two styles: vertical spindles (individual uprights from tread to handrail, traditional and clean) or post-and-sweeping-rail (upright posts with a continuous horizontal rail following the helical curve — more open and contemporary). Both are available across all material and diameter combinations.

Not necessarily — it's optional. A landing tread is a wider platform tread at the top of the staircase. It's useful where the staircase arrives directly at a balcony edge, mezzanine floor, or doorway, as it provides a more generous step at the transition point. Whether you need one depends on your specific installation — we'll advise at survey stage.

Yes. All-steel spiral staircases are the standard choice for external use — every external staircase is hot-dip galvanised before powder coating, giving two layers of corrosion protection. They can also be supplied in a galvanised finish without powder coating if preferred. External staircases are popular for providing garden-level access to raised balconies and terraces. Steel-and-wood can also work externally with the right timber specification — ask us at quote stage.

Yes, in most cases. Any staircase forming access to a habitable space requires Building Regulations compliance — covering minimum tread dimensions, headroom, guarding height, and handrail specification. We provide compliance documentation to support your Building Control application where required.

Cost depends on the diameter, floor-to-floor height, material combination, balustrade style, and RAL colour chosen. Send us your floor-to-floor height and preferred specification and we can give you a ballpark price the same day. No site visit needed for a ballpark figure.

Ready to Discuss Your Spiral Staircase?

Tell us your floor-to-floor height, diameter preference, and whether it's internal or external — we can give you a ballpark price the same day. We cover Nottinghamshire, Derbyshire, South Yorkshire, and the wider East Midlands.

Get a Free Quote 📞 01623 633154