Case Study: Delivering a 3.6m Diameter Custom Spiral Staircase for a Beijing Event Hall
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The Engineering Challenge: Scaling Grandeur with Safety
Many builders and designers ask: "How do we achieve a 'Wow' factor without compromising structural integrity?" For this Beijing project, the vision was a wide, sweeping curve with a tread width of 1.5m to 1.6m. In the world of architectural metalwork, a tread this wide requires meticulous load-bearing calculations.

Decoding the Spatial Footprint
To accommodate a 1.5m tread comfortably, we "decoded" the spatial logic. The final design required a total diameter of 3.5m to 3.6m.
The Problem: Most standard stairs wobble at this scale.
The Stark & Smith Solution: We utilized 10mm to 12mm thick high-grade carbon steel for the central spine and outer stringers, ensuring zero vibration even under heavy foot traffic.
From Foshan Factory to Beijing Installation: The Process
As a Foshan-based manufacturer, we leverage the world's best metalwork ecosystem. But what sets us apart is our "No Exaggeration" policy. We show our clients the raw metalwork before the final finish.
Why the "Naked" Finish Matters
We believe the quality of the weld is the true mark of a professional. In our workshop, we perform full-penetration welding and precision laser cutting. By inspecting the raw steel, you can see the strength of the joints—the "naked truth" of our craftsmanship.

Results: A Ready-to-Use Architectural Centerpiece
The final delivery in Beijing was a seamless installation. The curved steel structure was finished with a premium powder coating, matching the aesthetic of the luxury event hall while meeting strict safety codes.
Key Project Specs:
Location: Beijing, China
Application: Commercial Event Hall / Wedding Venue
Material: Heavy-duty Carbon Steel
Tread Width: 1.55m
Total Diameter: 3.6m
Compliance: Designed with international safety standards in mind.
Looking for a Reliable Metalwork Partner in China?
If you are a developer or architect seeking a professional sourcing agent or staircase manufacturer who speaks your language and understands your standards (including AU/BCA), let's connect.
At Stark & Smith, we don't just sell stairs; we engineer architectural solutions.
10+ Years of Project Experience (Ex-Australia)
Direct Factory Pricing from Foshan
BCA Compliant Designs Available
Contact James Chen today for a technical breakdown of your next project.