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Spiral staircase: complete guide for functional and elegant projects

In addition to being functional, the spiral staircase is a standout element that contributes to the aesthetics and spatial intelligence of the projects.

By CASACOR Publisher

Submitted at Jun 3, 2025, 4:18 PM

08 min de leitura
Clock House, by Dado Castello Branco, at CASACOR São Paulo 2018.

Clock House, by Dado Castello Branco, at CASACOR São Paulo 2018. (Felipe Araújo)

Compact, functional and full of style, the spiral staircase (also known as helicoidal) is an intelligent solution in architecture and interior design. Ideal for small spaces or for those looking to enhance vertical aesthetics, it has gained new versions—in various materials and with proposals ranging from classic to contemporary. Much more than a technical resource, the spiral staircase can be a focal point in the project, connecting floors with charm and lightness.
New office Steal The Look; Project Ana Rozenblit, by the architecture office Spaço Interior.

Projeto de Ana Rozenblit, do Spaço Interior. (Rafael Renzo/CASACOR)

Even with its functional origin, it adapts to different aesthetic proposals and can be found in both urban homes and more rustic projects. In this guide, you'll understand when and why to choose this staircase model, its advantages over conventional staircases, and how to harmonize it with different styles and materials.

When to include spiral staircase in the project


The spiral staircase is not recommended only for its striking appearance. In many cases, it is the best technical and functional choice for specific scenarios.

Projects with reduced square footage


When space is limited, such as in studios, mezzanines, or small townhouses, the spiral staircase offers a considerable advantage: it occupies a much smaller area than conventional models. This is because its helicoidal shape allows it to rise vertically in a fixed point, without the need for large spans or corridors.
79 m² apartment is located inside a building that used to be a convent. Project by Natália Salla. In the photo, integrated living room, dining room, and kitchen. Black stairs.

(Luciano Mendes/CASACOR)

Projects that enhance verticality


In projects with high ceilings, such as lofts or large living rooms, the spiral staircase can take on a sculptural role. When well positioned, it enhances the verticalization of the space and helps create a visual connection between the levels—almost like a functional art installation.

Integration between projects


If the proposal is to create integration between spaces—such as between the kitchen and an upper intimate area—the spiral staircase can be inserted in a way that subtly divides the spaces, creating a smooth transition without rigid visual barriers.
Wine cellar and helical staircase stand out in the house with a timeless project. Traama Architecture project. In the photo, living room with helical staircase and wine cellar on the wall.

Projeto Traama Arquitetura. (Julia Totoli/CASACOR)

Advantages and disadvantages


Although conventional staircases are still widely used, the spiral staircase presents specific advantages that can be decisive at the moment of choice. In addition to space-saving, it also usually has a simpler installation structure. In many cases, prefabricated models can be assembled in just a few steps, without major interventions in the project.
The shelf showcases a collection of vinyl records and takes center stage in this project. Project by Neto Cunha. In the photo, stairs and a coat rack. Dining room and paintings.

(Paola Kiminami e Renato Rebouças/Divulgação)

On the other hand, it is important to consider the daily use. If the flow of people is intense or there is a need for frequent transport of large objects, the conventional staircase may be more comfortable. However, for occasional accesses, such as attics or leisure spaces, the spiral staircase is more than sufficient—and much more charming!

Styles and materials


The spiral staircase is also versatile when it comes to style. The secret lies in the choice of material and finish, which can completely transform the perception of the project.
Wine cellar and spiral staircase stand out in the house with a timeless design. Traama Architecture project. In the photo, entrance with pivot door, slatted wall, and spiral staircase.

Projeto Traama Arquitetura. (Julia Totoli/CASACOR)

Metal spiral staircaseThe iron or steel versions are the most traditional. With a lightweight structure and open design, they work well in contemporary and industrial projects. They can be painted in vibrant colors to stand out or in neutral tones to integrate into the space.
Cecília Lemos Architecture Prosa Room CASACOR Pernambuco 2022 living room sofa painting stairs

Cecília Lemos Arquitetura - Sala Prosa. Projeto da CASACOR Pernambuco 2022. (MCA Estúdio/CASACOR)

Wooden spiral staircase


Classic and cozy, wood brings a touch of rusticity. It is the ideal option for projects that refer to the style of a country house, evoking fond memories. It works well in relaxation areas, such as bedrooms and balconies.
The penthouse features a living area and gourmet space with a view of Pedra da Gávea. Project by Studio 021 Architecture. In the photo, a living room with a staircase and a wooden guardrail.

(Fotos; Juliano Colodeti, do MCA Estúdio / Produção: Andrea Falchi e Rennan Schalabrin/Divulgação)

Mixed spiral staircase


The combination of different materials, such as metal and wood or glass and concrete, has proven to be a strong trend in bolder projects. These versions converse with contemporary proposals and allow for unique and sophisticated compositions.
Pool seems like an extension of the Lagoon in this Carioca project. Project by Rodrigo Barbosa. In the photo, stairs with concrete guardrails.

Projeto de Rodrigo Barbosa. (Gustavo Bresciani/Divulgação)

CASACOR Publisher is an exclusive content creation agent, developed by the CASACOR Technology team based on the knowledge base of casacor.com.br. This text was edited by Yeska Coelho.