Side Stringer Stairs

Side stringer stairs feature a prominent stair stringer running along the outer edge of the treads, creating clean lines while making the structural system part of the design statement. Unlike traditional stair stringers that remain hidden beneath treads, side stringer stairs place the structural element where it’s fully visible—becoming an architectural feature in itself. This approach delivers both structural efficiency and design flexibility for contemporary residential and commercial interiors.

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Design Features

The side stringer serves as the primary load-bearing element, positioned vertically along the staircase edge where it defines the visual character of the stairs. This placement creates an interesting visual rhythm—the vertical line of the stair stringer contrasting with the horizontal planes of the treads. Metal and Wood Products fabricates side stringer stairs from three distinct profile options, each offering unique aesthetic and structural characteristics.

tube side stringer

Tube Style

Tube stringers provide a streamlined, modern appearance with clean geometric edges. The hollow steel tube offers excellent strength-to-weight ratio and can be finished in powder coating, painted to match interior schemes, or left as raw steel for industrial aesthetics. Tube profiles work particularly well in contemporary spaces where simple forms and honest materials define the design language.

c channel side stringer

C-Channel Style

C-channel stringers bring authentic industrial character with their distinctive open web profile. The parallel flanges and exposed web create visual texture while providing robust support for heavy-traffic applications. C-channel stair stringers are particularly effective in loft conversions, commercial spaces, or residential projects where exposed structural elements contribute to the overall design theme.

profile cut plate side stringer

Profile Cut Plate Style

Plate stringers offer maximum design flexibility through laser cutting or waterjet fabrication. Steel plate can be cut to custom profiles—from geometric patterns to organic curves—or finished as simple flat plate for minimal expression. Plate stair stringers excel when the staircase should serve as a bold design feature, with the stringer profile becoming artwork in itself.

Structural Performance

Side stringer stairs handle loads differently than undermount configurations. The vertical orientation of the stair stringer creates a direct load path from treads down to foundation, making this an efficient structural system for both residential and commercial applications. The visible stringer location also simplifies inspection and maintenance over the staircase’s lifespan.

All side stringer designs meet BC Building Code requirements for load capacity, guardrail integration, and tread dimensions. The exposed stair stringer allows for straightforward railing attachment, with posts or panels mounting directly to the steel for integrated structural performance.

Customization Options

Each side stringer staircase is custom-fabricated for specific project dimensions and design requirements. Stair stringer profile dimensions are calculated based on span, tread depth, expected loads, and material selection. Finishes include powder coating in virtually any color, industrial clear coat, or specialty finishes like patina treatments for unique character.

Tread materials coordinate with the stringer aesthetic—hardwood treads soften industrial profiles, while steel or concrete treads emphasize the modern material palette. Railing systems can mount directly to the stair stringer or attach through tread connections, with options in glass, cable, or matching steel profiles.

Ideal Applications

Side stringer stairs work exceptionally well in spaces embracing industrial, modern, or transitional design aesthetics. The visible structural element adds visual interest to open floor plans without creating the transparency of undermount designs. This makes side stringer stairs ideal for defining spaces while maintaining openness—the vertical line of the stringer subtly separating zones without barriers.

Commercial applications include restaurants, retail spaces, and office environments where the staircase contributes to brand identity through material honesty and contemporary design. For residential projects, side stringer stairs complement exposed beams, concrete floors, and metal-framed windows in creating cohesive modern or industrial interiors.

Frequently Asked Questions

ABOUT OUR SIDE STRINGER STAIRS

Side stringer staircase costs depend on profile selection (tube, C-channel, or plate), dimensions, finish specifications, and tread materials. Generally, tube stringers are the most economical option, while custom waterjet-cut plate profiles with intricate designs represent premium pricing. Contact our team for a detailed quote based on your specific design requirements and project scope.

For exterior applications, hot-dip galvanizing provides maximum corrosion protection and longevity. Powder coating in architectural-grade finishes also offers excellent weather resistance with expanded color options. C-channel and tube profiles naturally drain water, making them practical choices for outdoor installations. Plate stringers work well outdoors with proper finish treatments to prevent rust and weathering.

Side stringer staircase installation requires welding expertise, structural knowledge, and proper anchoring to foundation and floor systems. While the visible stringer location simplifies some aspects compared to hidden support systems, professional installation ensures code compliance, proper load distribution, and safety. We recommend working with experienced metal fabricators or contractors for installation.

Yes. Side stringer stairs are well-suited for commercial applications due to their robust structural performance, ease of maintenance, and design flexibility. The direct load path and exposed stringer location simplify inspection requirements. C-channel and tube profiles handle high-traffic loads effectively, while various finish options allow coordination with commercial interior design themes.

Consider your overall design aesthetic and functional requirements. Tube stringers deliver clean, modern lines ideal for contemporary residential and commercial spaces. C-channel brings authentic industrial character perfect for lofts, warehouses, or transitional designs. Plate stringers offer maximum design flexibility when you want custom profiles, geometric patterns, or sculptural elements. Your fabricator can recommend optimal profiles based on span requirements and design goals.

Next Steps for Your Side Stringer Stair Project

Currently planning a custom build or renovation?

Share your project details, space measurements, and design preferences with our team. We’ll discuss tube, C-channel, and plate stringer options, recommend appropriate profiles for your application, and provide guidance on timeline and budget considerations.

Working with an architect or designer?

We collaborate directly with design professionals throughout the Greater Vancouver area. Request our technical specifications, load capacity data, and profile dimensions to incorporate side stringer systems into your project plans.

Exploring staircase options?

Compare our full range of modern staircase designs, including cantilevered stringers, plate guard styles, and undermount configurations. Each offers distinct aesthetic and structural characteristics for contemporary spaces.

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Side Stringer Staircase

Side stringer stairs feature a prominent stair stringer running along the outer edge of the treads, creating clean lines while making the structural system part of the design statement. Unlike traditional stair stringers that remain hidden beneath treads, side stringer stairs place the structural element where it's fully visible—becoming an architectural feature in itself. This approach delivers both structural efficiency and design flexibility for contemporary residential and commercial interiors.

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