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Escaliers

OUTINOX: stainless steel spiral staircase for outdoors

The exterior spiral stair that connects terrace and garden

OUTINOX is a compact outdoor spiral staircase that creates a comfortable connection between the ground floor, a terrace, a balcony or a flat roof. The helical shape fits neatly into a corner of the façade or along a patio, turning the stair into a discreet architectural feature rather than a bulky structure on the terrace.

Durable, low-maintenance stainless steel construction

Built entirely in stainless steel, OUTINOX withstands rain, frost, UV and changing temperatures without flaking paint or rust stains. Each staircase is made to measure by SPIRA to suit the floor height, available diameter and layout of your outdoor space. It is perfectly suited to residential gardens, apartment buildings and external access stairs for offices or small businesses.

More information? Download OUTINOX - Technical Sheet
Starting from :6 355 € Excluding VAT

Price for a standard straight staircase for one storey, including the handrail and beechwood treads, excluding installation

Interested? Don't hesitate to contact us. :
Request for quote
32 (0)2 257 88 30

Why choose the OUTINOX staircase?

Fully stainless steel for long-term outdoor performance

From the central column to the handrails, OUTINOX uses stainless steel components. This guarantees long-term resistance to corrosion and makes the stair ideal for exposed façades or damp climates. Cleaning is limited to an occasional rinse, and the sleek metallic finish keeps its contemporary look year after year.

Recycled plastic treads with anti-slip surface

The treads are made from recycled plastic, combining environmental responsibility with excellent weather resistance. Their textured surface improves grip, even when the stair is wet.

  • Rot-proof material that does not swell or crack ;

  • Available in several colours to coordinate with paving or cladding ;

  • Very easy to maintain with simple water cleaning.

Safety and comfort built into the design

A continuous stainless steel handrail follows the curve of the staircase, guiding the hand naturally during ascent and descent. Riser height and going are balanced for a regular climbing rhythm, even on compact diameters. Combined with the anti-slip treads, this makes OUTINOX a reassuring outdoor stair for everyday use rather than a simple metal ladder.

A bespoke exterior project by SPIRA

Like all custom spiral staircases from SPIRA, OUTINOX is engineered specifically for each façade: floor levels, terrace structure, fixing details and guardrail design are all adapted to the project. The balcony or terrace railings can be aligned visually with those of the stair, creating a coherent whole. The result is a bespoke outdoor staircase that enhances the architecture while offering reliable access for many years.

 

Interested? Don't hesitate to contact us. :
Request for quote
32 (0)2 257 88 30

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