Types of Stair Stringers

Stair stringers are the structural backbone of a staircase. They support the treads (horizontal steps) and risers (vertical parts) and determine the overall shape and stability of the stairs. There are several types, each suited for different styles and structural needs.

1.  Double Stringer

Design: Two stringers placed beneath or on the sides of the treads.
Appearance: Can be hidden or exposed depending on design.
Use Case: Industrial or modern applications.
Pros: Strong and stable; customizable.
Cons: May require more space than mono stringers.

2. Pre-cut or Prefabricated Stringers

Design: Factory-cut to standard dimensions.
Appearance: Varies based on design.
Use Case: DIY projects, decks, and outdoor stairs.
Pros: Convenient and time-saving.
Cons: Limited customization.

Common Materials Used

Wood: Traditional, easy to cut and shape Residential stairs
Steel: Strong, durable, modern appearance Commercial and industrial stairs
Aluminum: Lightweight, corrosion-resistant Outdoor or marine environments
Composite: Low-maintenance, weather-resistant Decks and exterior stairs

Stair Treads & Materials Guide

Discover the Perfect Stair Tread for Your Space

Stair treads are more than just the steps you walk on—they’re a key design element that influences the look, feel, and safety of your staircase. Whether you're building a new staircase or upgrading an existing one, choosing the right tread material is essential. From classic wood to sleek glass, here's everything you need to know.

Popular Stair Tread Materials

Wood Treads

Wood is a timeless favorite for its natural warmth and character.

Common Types:

• Hardwood
• Merbau
• Massaranduba

Best For:

• Indoor residential stairs

Benefits:

• Warm, inviting appearance
• Easy to sand and refinish
• Wide variety of grains and finishes

Considerations:

• Requires maintenance
• Sensitive to moisture and scratches

Steel Treads

Strong and industrial, steel treads are built for performance.

Best For:

• Commercial spaces
• fire escapes
• modern interiors

Benefits:

• Extremely durable and fire-resistant
• Can be perforated or textured for grip

Considerations:

• Can be noisy underfoot
• Requires rust protection outdoors

Aluminum Treads

Lightweight and corrosion-resistant, aluminum is a smart choice for both indoor and outdoor stairs.

Best For:

• Coastal homes
• outdoor staircases
• lightweight structures

Benefits:

• Rust-proof and low maintenance
• Non-slip options available

Considerations:

• Less structural strength than steel
• Prone to denting under heavy impact

Stair Nosing Options

Stair nosing enhances safety, durability, and style. Here are a few popular types:

Nosing Type Features Ideal For:

• Bullnose (Rounded) Smooth, curved edge for comfort Traditional wood stairs
• Square Edge Clean, modern profile Contemporary designs
• Anti-Slip Nosing Textured or rubber inserts for grip Commercial or outdoor stairs

Need Help Choosing?

Whether you're designing a staircase for your home, business, or outdoor space, the right tread material can make all the difference. Contact us today for expert advice or a custom quote tailored to your project.