Single Stringer Curved Stairs
Single Stringer Straight Stairs
Double Stringer Straight Stairs
Side Stringer Straight Stairs
Side Stringer Curved Stairs
Double Stringer Curved Stairs
Interior Spiral Stairs
Building Code Compliance certified

Building Code Compliance

Modern Steel Open Tread Stair Systems

Modern steel open tread stair systems feature innovative single, double, and side stringer configurations that create floating aesthetics for residential and commercial spaces. These custom-fabricated staircases combine structural steel engineering with contemporary design, offering versatile solutions in straight, curved, and spiral configurations. Built to handle 300 lbs per tread, they accommodate various materials including wood, glass, stone, and steel while meeting building codes for interior and exterior applications.

Our Range of Products

Single Stringer Curved Stairs

Single Stringer Curved Stairs

  • Most floating design available
  • 300 lbs per tread capacity
  • Heavy-duty structural steel
Single Stringer Straight Stairs

Single Stringer Straight Stairs

  • Minimalist single stringer design
  • Laser-cut triangular frame treads
  • Up to 42 inches wide
Double Stringer Straight Stairs

Double Stringer Straight Stairs

  • Superior load-bearing capability
  • Suitable for 60+ inch widths
  • Lighter for easier installation
Side Stringer Straight Stairs

Side Stringer Straight Stairs

  • Open aesthetic with side support
  • Weather-resistant options
  • Multiple tread materials
Side Stringer Curved Stairs

Side Stringer Curved Stairs

  • Flowing ribbon-like curvature
  • Freestanding or wall-attached
  • Pan-style construction
Double Stringer Curved Stairs

Double Stringer Curved Stairs

  • Sturdiest curved design
  • Easy to ship and install
  • Handles 180 degree turns

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Frequently Asked Questions

What is an open tread staircase?

An open tread staircase has no risers between steps, creating a floating appearance with visible space between each tread for a modern, airy aesthetic.

Are open stairs legal?

What is the weight capacity of these stair systems?

Can open tread stairs be used outdoors?

How are these stairs shipped and installed?

What tread materials are available?

What's the lead time for custom fabrication?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Residential Construction

Residential Construction

Custom open tread stairs provide elegant, space-saving solutions for modern homes, lofts, and apartments requiring floating aesthetics.

Commercial Real Estate

Commercial Real Estate

Sophisticated stair systems for offices, retail spaces, and showrooms requiring high-traffic durability with striking architectural appeal.

Architectural Design

Architectural Design

Fully customizable stair configurations for unique projects requiring curved, spiral, or geometric designs that serve as focal points.

Industrial Facilities

Industrial Facilities

Durable pan-style stairs with weather-resistant finishes for exterior access, decks, balconies, and industrial applications.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Why Architects and Contractors Choose Acadia Stairs

40+ Years Combined Experience

Four decades of expertise designing custom metal staircases for virtually every circumstance, shipped nationwide with proven quality and reliability.

Complete Design Collaboration

From initial consultation to final installation, our expert team provides shop drawings, technical support, and contractor collaboration throughout your project lifecycle.

Engineered for Performance

Heavy-duty structural steel systems rated for 300 lbs per tread with code-compliant fabrication, ensuring superior strength and long-term durability.

Request a Custom Staircase Quote for Your Project

Connect with our design team for a free consultation. We'll provide detailed shop drawings and expert guidance to bring your vision to life.

Contact Us Today

For immediate assistance, feel free to give us a direct call at +1 845-765-8600 You can also send us a quick email at info@acadiastairs.com