Custom Spiral Stairs & Curved Railings
Custom Spiral Stairs, Built to Impress
At Excalibur Metal Design, we create bold, visually striking custom spiral stairs that combine form and function. Whether you’re looking for a compact staircase solution or a showstopping centerpiece, our spiral stairs are custom-built to fit your space, style, and structural needs. Each staircase is more than a means to move between levels — it’s a sculptural element that defines the architecture of a space. We specialize in crafting both residential spiral stairs and commercial-grade spiral stair systems, with attention to detail and lasting craftsmanship.
Whether you’re building a new home in Meridian or remodeling in Eagle, our custom designed and fabricated metalwork brings your vision to life with quality that lasts for generations.
Indoor & Outdoor Spiral Staircases
Our spiral staircases are engineered for durability and designed to elevate the visual flow of any property, whether inside or out:
Indoor Spiral Stairs – Perfect for tight spaces like lofts, basements, and upper-level bedrooms. These stairs maximize vertical space while adding a unique architectural element to modern homes and offices. Custom treads, risers, and handrails ensure a seamless blend with your interior style — from minimalist black steel to rustic-industrial finishes.
Outdoor Spiral Stairs – Ideal for connecting patios, balconies, rooftop decks, or garden levels. Our outdoor staircases are built using weather-resistant materials and durable powder coatings to handle the elements year-round. Choose from open risers for drainage or solid plate for added safety.
Commercial Spiral Stairs – Built to meet local code requirements and withstand high traffic in retail, office, or hospitality environments. We combine performance and aesthetics to deliver stair systems that impress clients and last for decades.
Each spiral staircase is built to spec, with layout, finish, and material options fully tailored to your property and use.
Helix, Curved & Flared Railings
The right railing transforms a functional stair into a true architectural feature. We design and fabricate a range of custom railing systems that follow the natural arc of your spiral stairs for an integrated, fluid look:
Helix Railings – Sleek, continuous railing systems that mirror the spiral shape for a smooth, uninterrupted handhold. Great for modern interiors and statement staircases.
Curved Stair Railings – Designed to complement the flow of the staircase and meet code requirements without sacrificing elegance. Choose from horizontal bars, solid plate, or artistic patterns.
Flared & Split Railings – Enhance the drama of your entryway or staircase landing with railings that widen at the base or split symmetrically. Ideal for grand staircases and open-concept layouts.
Residential & Commercial Options – Whether you need understated elegance or bold architectural lines, we’ll craft a railing system that balances safety, function, and design impact.
All railings are welded and finished in-house, using steel, aluminum, or mixed materials for a refined, lasting result.
For Examples of Our Work, Please Visit Our Spiral Stair & Helix Rail Gallery
Our Custom Process – From Concept to Completion
1. Consultation – Discover the Vision
We begin with a deep dive into your goals — what kind of space you’re working with, how the staircase will be used, and what your aesthetic preferences are. We’ll review any site constraints, style inspirations, and discuss finish options. Whether you’re envisioning a steel spiral staircase for a downtown loft or an outdoor stair with helix railing for a mountain-view deck, we’re here to bring your idea to life.
2. Design & Quote – Visualize It First
Once we understand your needs, our design team develops a detailed concept including dimensions, layout, and material options. We provide sketches or 3D renderings (depending on complexity) so you can visualize the final product. You’ll receive an all-in quote with clear pricing for fabrication, finishing, delivery, or installation — no surprise costs, just honest craftsmanship.
3. Fabrication – Built by Hand in Idaho
Every spiral stair and railing system is custom-built in our Meridian, Idaho shop using premium metals and precision equipment. We handle everything in-house: cutting, bending, welding, and finishing. Whether you’re getting a mono-stringer spiral, double stringer, or a unique flared split staircase, we ensure tight tolerances and flawless details that elevate your space for years to come.
4. Delivery or Installation – Local or Nationwide
For customers in Boise, Meridian, Eagle, and surrounding areas, we offer full-service installation by our skilled team. Outside of Idaho? No problem. We crate and ship nationwide, providing everything needed for smooth, local installation. Every stair kit includes labeled parts, hardware, and instructions — and we’re just a call away if your contractor needs support.
From initial concept through final weld, we guide your project every step of the way.
Proudly Serving the Treasure Valley and surrounding areas.
- Boise, Id
- Meridian, ID
- Eagle, ID
- Nampa, ID
- Caldwell, ID
- Kuna, ID
- Star, ID
- Middleton, ID
- McCall, ID
- Donnely, ID
- Tamarack, ID
- Sunvalley, ID
- Twinfalls, ID
Why Choose Excalibur for Spiral Staircases?
Custom-built spiral stairs and railing systems
Designed for both indoor and outdoor applications
Residential and commercial capabilities
Local installation or nationwide shipping
Dozens of finish and material options
Full design support, permits, and code compliance
With decades of metalworking expertise and a reputation for artisan quality, Excalibur Metal Design is your trusted partner for unforgettable spiral stair and railing systems.
Ready to Add Spiral Stairs to Your Space?
Let Excalibur Metal Design elevate your environment with custom spiral staircases built for beuty, function, and code complience.