When it comes to combining design, durability, and customization in a single staircase, the D500 spiral stairs by Custom Iron are in a class of their own. Whether you’re designing a contemporary urban loft, a rustic cabin getaway, or a modern office space, the D500 gives you the freedom to express your style, and change it later without hassle. That’s right. The D500 is made to evolve with your space and your taste.
At Custom Iron, we believe in building more than just stairs. We build character into your home or project. Our D500 spiral stairs offer a unique, modern aesthetic while maintaining the solid quality and ease of installation that homeowners, architects, and builders appreciate.
What Makes the D500 So Unique?
The D500 isn’t just a spiral stair. It’s a design statement. Crafted with a smooth 2-inch wide flat handrail and square main balusters, the D500 offers a clean, bold profile that instantly upgrades any space. Unlike many spiral staircases that are fixed in design, the D500 features interchangeable laser-cut panel designs. This means you can update the look of your stair without replacing the entire unit. Just swap out the panels!
Our clients love the flexibility this provides. Want a sleek industrial feel today and a warm wood accent tomorrow? With the D500 spiral stairs, that’s completely possible. You can change your staircase’s vibe without starting from scratch. It’s like giving your home a mini makeover anytime you want.
Custom Options That Fit Your Vision
The D500 spiral stairs come with a wide variety of customization options to make sure your staircase matches your exact needs and vision. From platform styles to tread materials, every detail can be tailored:
- Platform Styles: Choose from B-Style (railing on one side), C-Style (railing on both sides), or D-Style (an L-shaped platform with rail on two sides). Whether your stair connects through a floor, alongside a wall, or along an open edge, we’ve got a fit for you.
- Platform Surfaces: Options like checkerplate, smooth, deck ready, or wood give you control over the look and feel. Whether you want slip resistance, aesthetic appeal, or a mix of both, we’ve got you covered.
- Tread Surfaces: Match your platform with checkerplate, wood, radial grate, or pan-style treads. Whether your look is classic or contemporary, your D500 spiral stairs can align perfectly.
- Risers: From economy to solid metal or elegant red oak, risers help enhance the overall finish. You can even add laser scroll risers for that extra touch of personalization.
- Column Caps: Top off your stair with a painted or wood cap, including options in red oak or other species.
All these choices allow you to create a stairway that’s not only functional but also reflects your personal style.

Built for Performance and Easy Installation
It’s not just about looks. Our D500 spiral stairs are engineered for long-lasting durability and effortless installation. The simple yet elegant 1/4 x 2 flat bar handrail is welded on top of a 1/2 x 1-1/2 channel, ensuring strength and comfort. Whether you’re a contractor or a hands-on homeowner, you’ll appreciate how easy these stairs are to install. Each component is thoughtfully designed to fit together smoothly, reducing on-site labor time.
With minimal tools and clear instructions, you’ll be surprised how fast your D500 comes together. Plus, our team is always here to help. From planning to final install, we’re just a call or message away.
Express Yourself With Every Step
Why settle for ordinary when you can showcase your personality? The D500 allows you to be bold with your home design. From bamboo panels to checkerplate treads, there’s no limit to what you can achieve. Our stair systems are more than just ways to move from one floor to another. They’re conversation starters, focal points, and true expressions of your aesthetic.
Thanks to its panel-swapping feature, your D500 spiral stairs can adapt just like your taste does. Want something more minimal for now and a more decorative look later? No problem. This stair grows with you.
Real Style for Real Life
We get it. You want a style that’s flexible but also practical. That’s where the D500 spiral stairs shine. They’re ideal for:
- Tight spaces where a traditional stair won’t fit
- Indoor or outdoor installations
- Homes with evolving design needs
- Commercial projects needing high visual impact
Builders love them. Designers praise them. And homeowners can’t stop showing them off to guests. That’s why our D500 line has become one of our most popular offerings.
Get Inspired With Custom Iron
We’ve been building custom stairs for years, and the D500 is the culmination of all that experience. It represents everything we value: strength, beauty, creativity, and customer satisfaction.
When you choose the D500 spiral stairs, you’re not just picking a product. You’re joining a community of clients who believe in building things that last and look amazing while doing it.
Want to see more examples or need help customizing your own stair? Our team is ready to assist with planning, design, and installation. We’ll work with your space, your goals, and your budget.
Contact Us Today
If you’re ready to add something truly special to your home or building project, our D500 spiral stairs are the perfect solution. Let us help you turn your stairway into a stunning centerpiece.
Our expert team at Custom Iron is here to guide you through every step of the process, from selecting the perfect panel design to final installation. No two homes are alike, so why should your staircase be?
We’re excited to help you bring your vision to life. Let’s talk about your next staircase and how the D500 spiral stairs can make it amazing. Whether you’re a homeowner, architect, or builder, we’ve got the tools and the experience to deliver quality and beauty with every stair.
To get started, simply request a quote, and our team will be in touch to begin crafting your custom stair solution. Call our team at Custom Iron today at (800) 732-7696 and let’s take your next project to a whole new level.