Double Stringer Floating Steel Stairs

Yes, using two stringers is a reliable and popular method for supporting staircases. Double stringers provide two parallel points of support under each tread, offering balanced weight distribution and high structural stability. This design is well suited for both straight and curved layouts, supporting residential and commercial applications while maintaining an open, modern architectural style without the bulk of traditional walls.

Double stringer configurations are specifically suitable for wide staircases exceeding 48 inches in width. For example, 60-inch wide stairs can be engineered with 32-inch stringer spacing to provide balanced structural support across the tread surface. Because every staircase is custom fabricated, stringer placement and tread supports are engineered to meet specific project dimensions and required commercial or residential load criteria.

The length of a 2-step stringer varies depending on project-specific floor-to-floor rise, tread depth, and desired run requirements. Because every staircase is custom engineered rather than mass-produced in fixed dimensions, stringer members are cut and fabricated to match exact architectural specifications and local building code standards. Consult with our engineering team with your measurements to establish exact stringer dimensions.

Double stringer stairs accommodate a wide variety of tread materials to match any interior or exterior design aesthetic. Tread material options include wood, steel, stainless steel, stone, glass, rubber, and ceramic tile. These treads mount securely atop welded steel carriers positioned along the two structural stringers, allowing you to combine durable metal framing with distinctive architectural surfaces tailored to your space.

Yes, double stringer stairs can be custom fabricated for both interior and exterior applications. For outdoor installations, stringers can be manufactured using durable steel, aluminum, or stainless steel profiles, and protected with durable finishes such as powder coating. This heavy-duty metal construction ensures long-lasting weather resistance and reliable structural performance for outdoor residential decks, commercial entryways, and exterior access points.

Double stringer curved stairs can be built to nearly any height and configured to accommodate a wide variety of curved layouts. Supported designs include slight curves, wide radiuses, 180-degree turns, and small inner diameter curves. With heavy-duty steel tube, channel, or fabricated I-beam stringers supporting up to 300 pounds per tread, curved systems deliver striking visual impact and reliable support.