Kappa Spiral Staircase
Delivery Info
| Delivery Option | Delivery Time | Price |
|---|---|---|
| FREE Delivery | 2-3 Weeks | £0.00 |
| Next Day Delivery | 1 Day | N/A |
Kappa Spiral Staircase
β
Contemporary spiral staircase with laminated beech treads and matte black powder-coated steel structure.
π FREE UK Mainland Standard Delivery — tracked service included.
π οΈ Designed for modern interiors, lofts and mezzanines where a bold architectural feature is required.
Technical
Use Type: Domestic
Structure Material: Powder Coated Steel (Black finish)
Tread Material: Laminated Beech
Tread Finish: Varnished
Number of Treads: 13
Tread Thickness: 38 mm
Adjustable Tread Rise: 190 mm – 235 mm
Floor-to-Floor Height Range: 2470 mm – 3055 mm
Staircase Diameter Options: 1200 mm or 1400 mm
Minimum Floor Opening Length: 1250 mm
Minimum Floor Opening Width: 1250 mm
Maximum Point Load: 200 kg
Maximum Surface Load: 620 kg
Building Regulation Compliance: Yes
Guarantee: Lifetime Guarantee
Key Benefits
Bold Architectural Design
Matte black steel structure paired with warm beech treads creates a striking modern centrepiece.Compact Spiral Footprint
Ideal for interiors where space is limited but visual impact is important.Adjustable Rise System
Riser height can be adjusted between 19 cm and 23.5 cm for precise installation.Premium Beech Treads
38 mm thick laminated treads provide strength, durability and comfort.Multiple Diameter Options
Available in 120 cm and 140 cm to suit both compact and more spacious layouts.Enhanced Balustrade Safety
Multiple balusters per tread improve stability and user confidence.
π Sizes & Dimensions
| Specification | Measurement |
|---|---|
| Floor-to-Floor Height Range | 2470 mm – 3055 mm |
| Number of Treads | 13 |
| Staircase Diameter Options | 1200 mm or 1400 mm |
| Minimum Floor Opening Length | 1250 mm |
| Minimum Floor Opening Width | 1250 mm |
| Adjustable Tread Rise | 190 mm – 235 mm |
| Tread Thickness | 38 mm |
| Maximum Point Load | 200 kg |
| Maximum Surface Load | 620 kg |
Choose this staircase if you need a compact spiral solution with strong visual impact and premium materials.
How Does It Compare?
| Feature | Kappa Spiral Staircase | Basic Spiral Staircase |
|---|---|---|
| Design Finish | β Matte black steel & beech | β Basic finishes |
| Adjustable Rise | β 19–23.5 cm | β Fixed |
| Tread Thickness | β 38 mm | β Thinner |
| Safety Balusters | β Multiple per tread | β Often fewer |
| Diameter Options | β 120 cm / 140 cm | β Usually single size |
| Structural Compliance | β EN 1991 & EN 1993 | β Often unspecified |
Compared with standard spiral staircases, the Kappa offers superior aesthetics, stronger materials and greater installation flexibility.
Full Product Overview
The Kappa Spiral Staircase is designed to deliver both striking visual appeal and practical functionality in modern interiors. Featuring laminated beech treads and a matte black powder-coated steel structure, it creates a bold architectural statement while maintaining a compact footprint.
With adjustable risers and a floor-to-floor height range of up to 3.05 m, the Kappa staircase can be adapted to suit loft conversions, mezzanine spaces and contemporary living environments. The spiral design maximises floor space while still providing comfortable and secure access between levels.
Available in two diameters, 120 cm and 140 cm, the Kappa staircase offers flexibility for both compact and larger installations.
Safety & Build Details
Laminated beech treads for strength and durability.
Powder-coated steel structure for long-term stability.
Adjustable riser system for accurate installation.
Multi-baluster design for enhanced safety.
Tested to 200 kg point load and 620 kg surface load.
Complies with EN 1991 and EN 1993 structural standards.
Final Verdict
If you’re looking for a spiral staircase that delivers both bold design and dependable performance, the Kappa Spiral Staircase is an excellent choice. With premium materials, adjustable installation and a striking modern finish, it provides a high-quality solution backed by a Lifetime Guarantee.






