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Heavy Duty Steel Helical Staircase
Heavy Duty Steel Helical Staircase

Contemporary Architectural Heavy Duty Steel Helical Staircase

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A modern all-steel spiral staircase featuring a heavy-wall central steel column, sleek vertical steel picket guardrail, heavy-gauge steel treads, and an integrated landing platform for a durable, space-saving architectural solution.

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Custom sizes available in 4 – 6 weeks.

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Description

Contemporary Architectural Heavy-Duty Steel Helical Staircase with Double Box Stringers and Multi-Line Railing

Engineered for grand architectural spaces, our contemporary heavy-duty steel helical staircase combines massive structural strength with refined modern industrial aesthetics. Built entirely from heavy-gauge structural carbon steel plate, this staircase features double curved steel box-section stringers, custom steel railing posts with parallel horizontal stainless steel tension cables (or solid steel rods), precision-fabricated open-riser steel treads, and an integrated steel exit platform.

INCLUDED Features:

  • Double Curved Steel Box-Section Stringers: Heavy-plate carbon steel inner and outer box stringers engineered to provide high torsional resistance and structural support.
  • Multi-Line Cable/Rod Guardrail System: Heavy-duty vertical steel railing posts paired with tensioned horizontal stainless steel cables (or steel fill rods) for a crisp, transparent safety enclosure.
  • Integrated Steel Landing Platform: Sturdy steel platform complete with matching perimeter cable guardrails and high-strength junction plates.
  • Open-Riser Fabricated Steel Treads: Heavy-gauge steel tread assemblies welded flush between stringers to enhance light transmission while maintaining high load capacities.
  • Structural Steel Support Column Base: Reinforced lower steel support column with heavy base anchoring flange for structural load distribution.

Signature Features:

  • Full Carbon Steel Structural Integrity: Constructed entirely from high-yield structural steel plates, structural tubes, and stainless steel hardware, guaranteeing zero-vibration stability and exceptional durability.
  • Center-Post-Free Helical Geometry: Open-center sweeping arc geometry designed without a traditional central column, creating a spacious, architecturally impressive silhouette.
  • Industrial Architectural Powder Coating: Multi-stage pre-treatment and electrostatic powder coating in charcoal/gunmetal matte finish for superior resistance to corrosion, UV exposure, and wear.
  • Precision CNC Cutting & Master Steel Fabrication: Laser-cut curved steel stringers and hand-finished continuous seam welds ensure geometric accuracy and smooth structural lines.
  • Heavy-Duty Commercial & Residential Grade: Engineered to meet strict structural load and deflection codes for high-end residential interiors, commercial lobbies, and outdoor elevated decks.
  • Fully Customizable Metal Specifications: Arc radius, total height, step count, tread design, cable layout, steel plate thickness, and custom powder-coat finishes tailored to exact project drawings.

Close-up detail: Matte dark steel box stringer paired with heavy-duty steel posts, stainless tension cables, and precision-welded open-riser steel treads.

Heavy Duty Steel Helical Staircase
Contemporary Architectural Heavy Duty Steel Helical Staircase

Tailored Solutions for Any Architectural Specification.

Leveraging robust manufacturing infrastructure and standardized quality control, we ensure faster lead times and reliable project execution for global clients.

👉 Connect with our design specialists today for custom quotes and technical support!

Why Do Customers Choose LIKE Metal ?

The gate for my yard is from Like Metal, and it's 100% exactly what I wanted—it's fantastic! Even though it had to be ordered from faraway China, it was all worth it.
Wrought iron gate with ornate scrollwork and spear-top finials, installed at a residential entrance, showcasing durable black metal craftsmanship.
EugeneFrom Spain
I really prefer this kind of classic, traditional style for doors and windows; I updated all 13 doors and 16 windows in my villa to a classic black-and-white theme. The result is truly stunning.
Industrial-style metal table legs in matte black finish, featuring welded cross braces and floor levelers, displayed in a workshop setting for a furniture manufacturer client.
JesseFrom Papua New Guinea
I ordered the stair railings and large iron gate from Like Metal. Well, it saved me a lot of money on renovations. But the quality is the same as locally made ones; Chinese manufacturing is truly impressive!
Custom wrought iron entry gate and matching staircase railing with ornate scrollwork, balusters, and wall brackets, installed in a luxury residential interior.
GrantFrom Morocco

High Quality

As a part of China, a manufacturing powerhouse, we possess the world's most complete metal material supply chain and the best production processes and teams, enabling us to manufacture high-quality wrought iron products.

Save Money

Compared to sourcing locally, purchasing directly from our factory can save you up to 30% or more in overall costs.

Customizable

The size, style, and color of the product can all be customized to maximize your satisfaction.

Global Reach

Our comprehensive logistics and packaging technology ensure that every product arrives at your destination intact.

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