Stair Stringer Market, By Material Type (Wood, Metal (steel, aluminum, etc.), and Composite materials), By Application (Residential, Commercial (offices, retail spaces, public buildings), and Industrial (factories, warehouses)), By Construction Type (Indoor stair stringers, Outdoor stair stringers), By Design Style (Traditional/Classic, Modern/Contemporary, Industrial, Minimalistic), By End User (Homeowners, Architects and Designers, Contractors and Builders), By Distribution Channel (Direct Sales ( manufacturers selling directly to customers), Retail ( home improvement stores, specialized building material stores), Online Retail ( e-commerce platforms)), By Geography (North America, Latin America, Europe, Middle East & Africa, and Asia Pacific)