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What is a spiral staircase?

A spiral staircase, also known as a spiral staircase, is a type of staircase characterized by its curved, spiral shape. Unlike straight staircases, spiral staircases are designed so that the treads wind around a central axis, creating a spiral structure.

Spiral staircases are often used in tight spaces where efficient use of space is essential. Here are just a few examples of environments where spiral staircases can be found. In urban areas where living space is often limited, spiral staircases are used to save floor space while allowing access to higher levels. Spiral staircases are also popular in lofts and studios, where space is used in a multi-purpose way and it’s important to maximize every available square meter. Then, in spaces such as attics or converted loft spaces, where space may be narrow or difficult to access, spiral staircases offer a practical solution for getting up and down while occupying minimal space. Spiral staircases can also be found in some commercial buildings, such as observation towers, museums or historic buildings, where they are used to add an aesthetic touch while providing efficient vertical access. Finally, spiral staircases are sometimes used outdoors in gardens, patios or terraces to provide access to high levels while minimizing the impact on floor space.

Spiral staircases offer a combination of aesthetics, functionality and space savings, elegantly winding the steps into a spiral structure. They can add a distinctive touch to the interior of a home, commercial building or public space, while offering practical, compact vertical access.

Our achievments

Spiral staircases The “Passage des Dames” in Rennes
Modern helical staircase design

A beautiful example of a shaftless spiral staircase.
The stringer is attached within the structure built into the red wall. This stringer – which is as important and central as the mill’s pivot – remains invisible to highlight the staircase’s gentle arabesques.
The initial handrail and upper barrier are made of hammered round steel. A full patina effect creates different hues on the steps, stringer and banister – just like the 18th century house it lies in.

Le passage des Dames
Le passage des Dames

Spiral staircases Agrocampus
Spiral staircase made of steel and stamped iron

“Backup” staircase: we used a restrained area to insert a robust yet light staircase that would be both discrete and easily visible.
This spiral staircase is made of steel, the steps are made of stamped iron and were galvanised and painted.
The creation fits in perfectly with the 19th century building.


Spiral staircases Promenade au clair de lune
Wrought iron spiral staircase

This beautifully high seaside building has a wrought iron spiral staircase running through its entire core, from the basement to the upper floors.
At the top of the staircase, protected by railings, is a cast iron fish (perfect for the seaside), acting like a figurehead beneath the skylight that towers gracefully over the “Promenade au clair de lune” path.

Promenade au clair de lune
Promenade au clair de lune

What are the characteristics of a spiral staircase?

One of the most distinctive features of a spiral staircase is its shape, which rotates around a central axis. This design allows the staircase to spiral up or down, reducing the amount of floor space required. A vertical central axis is the staircase’s point of rotation. All the treads of the staircase are connected to this axis, enabling them to turn at the same time when ascending or descending. The treads of a spiral staircase can be of different shapes, such as triangular, trapezoidal or quarter-circular, depending on the specific design of the staircase. They are arranged helically around the central axis.

For safety reasons, spiral staircases are generally fitted with a handrail that follows the shape of the staircase. The handrail can be fixed to the inside or outside wall of the staircase, or integrated into the structure of the staircase itself. The diameter of the spiral staircase determines the size of the floor space required. Spiral staircases can vary considerably in diameter, from smaller models designed for residential use to larger ones intended for commercial or public applications. Spiral staircases can be built from a variety of materials, including wood, metal, glass or a combination of these.

The choice of materials often depends on the architectural style of the space where the staircase will be installed, as well as durability and budget considerations. In addition to their functionality, spiral staircases can also offer an attractive aesthetic and add an interesting visual element to a space. Their unique design can be used to create focal points or striking architectural elements.

A spiral staircase is distinguished by its spiral shape, central axis, helically arranged treads and ability to save space while providing efficient vertical access. These features make them a popular choice in a variety of residential, commercial and public environments.

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