Structural Steel & Metal Staircases in New York City

Steel Masters NYC custom fabricates, builds and installs structural steel and metal staircases for commercial, industrial, and residential buildings throughout New York City. With over 50 years of ironwork experience dating back to 1972, our Brooklyn shop has produced staircases for apartment buildings, hospitals, schools, restaurants, factories, office buildings, and government properties across all five boroughs, Long Island, and Westchester.

Every staircase is fabricated to your exact specifications — floor-to-floor height, tread configuration, landing layout, and railing style — and installed by our own crew. Whether you need a simple basement access staircase or a complete multi-floor egress system, Steel Masters is your go-to commercial steel staircase fabricator in New York City.

Storefront Basement access steel closed diamond plated staircase fabricated and installed.

New steel stairs installed for storefront basement access.

steel step fabrication

grated steel steps with landing and tubular hand railing painted black

Extra long steel backyard stairs with landing and tube railings, nyc

Closed tread metal checkered plate indoor staircase

Indoor steel staircase with railings - NY

indoor steel staircase split three levels

Commercial storefront diamond plate staircase for restaurant with new steel railings and custom metal double doors. All solid welded steel. Lower east side nyc

Floating steel open staircase on rooftop custom iron works, upper west side manhattan

Interior double diamond plate landing with 2 closed tread diamond plate steps for hallway. Midtown nyc

Basement steel pan indoor staircase in brooklyn, nyc

Metal staircases with 2 landings, supports and safety gate at top williamsburg, Brooklyn

Closed tread diamond plate metal stairs with custom filler plates. w 46st nyc

Open tread basement interior diamond plate metal staircases with square tube railing and support posts, forest hills queens ny

Interior extra long commercial open tread diamond plate staircase leading to office loft with 3 line welded pipe railing

- Morris park bronx new york.

Indoor fireproof basement steps of galvanized grating with pipe railing

Storefront basement egress galvanized grating metal stairs with hinged steel plate folding loading ramp

Outdoor fire staircase with galvanized grating steps, 3 line welded pipe railing and mid landing platform ,painted in cucumber green outdoor paint.

Closed tread indoor fireproof stairs with 3 line welded pipe-railing and support tubes

Interior metal stairs with ada guard railing

Diamond plate steel landing with bullnode and guard railing

Open tread metal bent diamond plate structural commercial staircase in store allen street new york

Indoor metal stairs with tube steel support posts and welded mounting plates in brooklyn, NYC

Staircase fabricated indoor steel

Closed tread diamond plate Custom metal stairs with endcaps and piperailing, Soho new york city

Closed tread diamond plate Custom metal stairs with endcaps and piperailing, Soho NYC

Metal stairs with round bar and tube railings

Steel stairs and custom balcony railings

Open tread diamond plate interior fireproof basement store stairs painted black

Steel staircases steps

4 foot wide steel diamond plate 1/4 this steps with square tube pipe railings

Galvanized metal fire egress staircase and pipe-railings

Structural commercial steel pan stair tower with structural framing, guardrail, stairs + landing, and protective debris mesh. (Manhattan, NY)

Grating Steps

Exterior metal stairs with open tread diamond plate fully welded steel steps and solid railings.

Outside diamond plate steps with landing and picket railings

Closed diamond steel plate stairs

Exterior staircase with supports

Diamond plate iron stairs with piperails

Boiler room catwalks and fixed ship ladders constructed of structural steel channel, galvanized grating all shop welded prepped for fully bolted assembly onsite.

Curved structural stair tower framing. (NY, NY)

Open tread flush mount bolt steps

Open tread simple steel staircase and guard

Diamond plate metal treads bolted to stringers

Institutional Steel staircase stringers. (Brooklyn, NY)

Open tread diamond plate steel stairs with support columns and half inch picket railings, all fully welded.

Treaded fire stairs

Interior metal staircase

Floating steel open staircase on rooftop custom iron works

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Why Contractors and Building Owners Choose Steel Masters NYC

Steel Staircase Types We Fabricate

Steel Masters NYC fabricates every type of commercial and residential metal staircase. Indoor commercial staircases include closed tread diamond plate, open tread grating, and concrete-filled stair pan configurations for egress, basement access, and mezzanine applications. Outdoor steel staircases use galvanized steel for corrosion resistance with open tread grating or diamond plate treads and welded pipe railings. Fire egress staircases are fabricated for multi-story commercial and residential buildings requiring rated egress paths. Architectural and floating staircases are custom-designed for restaurants, lofts, retail spaces, and rooftop applications where design and function are both priorities. Multi-landing staircases handle long floor-to-floor runs with one or more intermediate landings — standard for warehouses, factories, and multi-story commercial buildings. All configurations include welded pipe railings, wall railings, or both as required.

Serving All Five Boroughs, Long Island & Westchester

Our crews install structural steel and metal staircases throughout Brooklyn, Manhattan, Queens, the Bronx, Staten Island, Long Island, and Westchester. We work with general contractors, real estate management companies, architects, building owners, and facilities teams on projects of every scale.

Send us your drawings or call us at (888) 577-8335 or contact us online for a free estimate. We’ll visit your location, review your requirements, and provide a written quote.