Can You Build Stairs with Cold-Formed Steel? Yes—Here’s How

Building stairs with cold-formed steel (CFS) framing is not only possible but often a highly effective solution for creating durable and reliable stair systems. CFS is particularly well-suited for modern prefabricated constructions, offering flexibility in design and efficient installation. Stairs made with CFS can range from straight to complex configurations like curved or spiral designs, with the option for off-site manufacturing to streamline the assembly process on-site. 

Key methods and advantages of using CFS for stair construction:

Metal pan stairs: A widely used system where CFS sheets form the treads and risers, supported by steel stringers. Concrete is often poured into the tread "pans" to provide a sturdy and long-lasting walking surface.

Prefabrication: Stairs constructed from CFS can be prefabricated to precise specifications, minimizing on-site errors and significantly reducing installation time. This approach aligns perfectly with industrialized construction practices, as all components are manufactured in a controlled environment and delivered ready for assembly.

Customization: Advances in roll-forming technology and tools like Building Information Modeling (BIM) software make it easy to create unique and complex stair designs. Features such as spiral or curved staircases, which are challenging to construct with traditional materials, become much more achievable with CFS.

Durability: CFS is an ideal material due to its strength and lightweight properties. It is highly resistant to common issues such as warping, rotting, or pest damage. For added resilience, it can be galvanized for outdoor use or painted for interior applications.

Design flexibility: Architects and engineers can customize CFS stairs to comply with specific building regulations and safety standards, including those governing riser height and tread depth. Proper attention to connections is critical for structural integrity and accommodating factors like seismic forces.

Cold-formed steel framing offers a versatile and dependable option for stair construction, making it a popular choice across various building projects.