Spiral Steel Staircase Detail


Fully detailed construction drawing for a steel spiral staircase with cantilevered steps. Modular tread steps that can be rotated and moved on-site to match floor heights exactly.

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CAD dwg drawing for a Spiral Steel Staircase Detail with a cantilevered tread step. Stairs with modular tread steps that can be rotated and/or moved on-site to match floor heights exactly.

Product includes CAD .dwg file, CAD .dxf file and PDF file formats. Fully unlocked & customizable

Complete CAD design solution

Detail includes center support column with connection details and ground floor foundation support detail.

Tread step finish is illustrated with a wooden plank 40mm thick but can be altered according to architectural design.

Modular Staircase

This is a modular design. Apart from the fixed center support CHS column, each step can be individually adjusted on-site to match the preferred height and rotation of the circular staircase.

Each step consists of a steel plate welded onto a circular ring that is adjustable around the main circular post. After rotating to the right position it can be welded onto the CHS column.

Use with any project

This comprehensive drawing provides a clear and detailed representation for constructing a modular circular staircase. Drawing includes, elevation and cross section view, 3D parametric view, plan view and tread step detailing.

The drawing is designed to be adaptable to any steel design project, ensuring that it can be used across a wide range of construction applications. You can easily customize the detail to fit your unique design specifications and steel beam profile sections, saving valuable time and increasing efficiency on every project.

Save time with all projects

Can be used by any engineer, architect, or construction professional working with steel frame designs.

With unlimited use, unlocked and fully customizable content in DWG, DXF, and PDF formats, you’ll have a valuable resource at your fingertips for every project you undertake and be able to deliver your projects faster and more efficiently.

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Additional information


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INSTANT DOWNLOAD ACCESS – zip file containing : CAD dwg, dxf & pdf formats.


For reference purposes


Product image above is a demo low resolution snapshot for presentation purposes. Purchased content is fully customizable full resolution CAD drawing. Any 3D illustrations are not included


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