Outdoor Steel Staircases

Outdoor steel staircase with open tread diamond plate and solid railings fabricated by Steel Masters NYC
Exterior Metal Staircase — Open Tread Diamond Plate

Steel Masters NYC custom fabricates and installs outdoor steel staircases for commercial and residential properties throughout all five boroughs, Long Island, and Westchester. Whether you need a new exterior staircase or a full replacement of an existing unit, every staircase we build is custom-measured, fabricated in our Brooklyn shop, and installed by our own crew. Licensed and insured since 1972.

Types of outdoor steel staircases we fabricate

Every outdoor staircase application is different. We fabricate all major configurations to meet your specific site conditions, load requirements, and building code specifications:

Galvanized open-tread staircases — weather-resistant, ideal for exterior commercial use
Diamond plate tread staircases — anti-slip surface, heavy foot traffic applications
Grating tread staircases — open bar grating allows drainage, ideal for wet environments
Rooftop access staircases — fixed roof stairs with safety cage and handrails
Loading dock staircases — industrial-grade stairs for warehouse and facility access
Straight & L-shaped configurations — custom layout for any site
Handrails & guardrails included — pipe rail, flat bar, or custom profiles

What’s included with every outdoor staircase installation

Custom site measurement & design
Galvanized or primed & painted finish
Structural steel stringers & welded connections
Anti-slip tread surface
In-house fabrication & on-site installation

Why outdoor steel staircases need to be built right in NYC

Outdoor staircases in New York City face constant punishment — freeze-thaw cycles, salt air, rain, snow, and heavy daily use. A poorly fabricated staircase deteriorates fast and becomes a safety and liability hazard. Steel Masters builds every outdoor staircase from heavy-gauge structural steel with galvanized or quality painted finishes specifically engineered to withstand the New York climate for decades. Every unit is built to proper building standards so you’re protected from day one.

Who we build outdoor staircases for

We work with apartment building owners, property managers, general contractors, hospitals, schools, factories, industrial facilities, retail properties, and government buildings throughout New York City. Whether you need a simple backyard staircase or a complex multi-flight exterior egress system, our team has the experience and capacity to handle it. See also our full staircases hub page and our indoor fireproof metal staircases.

Serving all of NYC and surrounding areas

We fabricate and install outdoor steel staircases throughout Brooklyn, Queens, Manhattan, the Bronx, Staten Island, Long Island, and Westchester. Every staircase is custom-built to your exact site — call us at (888) 577-8335 or submit an estimate request and we’ll arrange a site visit to measure and quote your project.

(888) 577-8335