Steel Masters NYC custom fabricates and installs commercial steel staircases for apartment buildings, restaurants, storefronts, warehouses, factories, schools, and office buildings throughout New York City. Every staircase is built to your exact floor-to-floor height, footprint, and tread configuration in our Brooklyn shop — and installed by our own crew with no subcontractors.

Whether you’re replacing a rotted wooden basement staircase in a Brooklyn brownstone, installing a new egress staircase in a Queens commercial building, or fabricating a floating steel staircase for a Manhattan rooftop, Steel Masters Inc. has been building proper commercial steel staircases since 1972.

Closed tread diamond plate metal steps

Galvanized open tread staircase and deck porch

Diamond plate galvanized staircase

Double structural steel cement pan institutional staircase w steel framed landing

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Why Contractors and Building Owners Choose Steel Masters NYC for Commercial Staircases

Custom fabricated to your exact specs — every staircase is built to your building’s dimensions. We take measurements on-site, produce shop drawings, fabricate in Brooklyn, and install with our own crew.

NYC Installs — fabricated for NYC commercial staircases including riser height, tread depth, landing dimensions, and handrail requirements.

All tread types available — closed tread diamond plate, open tread bar grating, concrete-filled stair pans, and checkered plate treads available for indoor and outdoor applications.

Landings, platforms, and safety gates — single and double landing configurations, intermediate platforms, and safety gates at top or bottom of run fabricated as part of the complete package.

Pipe railings and wall railings included — welded square tube, round pipe, or custom railings fabricated and installed to code as part of every staircase project.

Over 50 years of NYC commercial ironwork — Steel Masters Inc. has fabricated commercial steel staircases for NYC buildings since 1972. We work with general contractors, real estate management companies, architects, and building owners.

Types of Commercial Steel Staircases We Fabricate

Basement and storefront access staircases are the most common commercial request — closed tread diamond plate or open tread grating stairs replacing old wood or concrete steps for retail storefronts and apartment building basements. Interior commercial egress staircases are fabricated for multi-story commercial and residential buildings, typically using stair pans filled with concrete or diamond plate closed treads. Outdoor and backyard staircases use galvanized steel for corrosion resistance, with open tread grating or diamond plate and welded pipe railings. Floating and architectural staircases are custom-designed for restaurants, lofts, and commercial spaces where appearance matters as much as function. Multi-level staircases with landings handle long floor-to-floor runs requiring one or more intermediate landings — common in warehouses, factories, and multi-story commercial buildings.

Serving All Five Boroughs, Long Island & Westchester

Our crews fabricate and install commercial steel staircases throughout Brooklyn, Manhattan, Queens, the Bronx, Staten Island, Long Island, and Westchester. We handle projects of every scale — from a single basement staircase replacement to complete multi-floor egress staircase systems for large commercial buildings.

Call us at (888) 577-8335 or contact us online for a free estimate. We’ll visit your location, take measurements, and provide a written quote.