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.

Steel staircases steps
Steel staircases steps
diamond plate meta steps tube rails
4 foot wide steel diamond plate 1/4 this steps with square tube pipe railings
metal fire egress staircase pipe railings
Galvanized metal fire egress staircase and pipe-railings
Structural commercial steel pan stair tower structural framing, guardrail stairs landing protective debris mesh
Structural commercial steel pan stair tower with structural framing, guardrail, stairs + landing, and protective debris mesh. (Manhattan, NY)
Grating steel steps
Grating Steps
exterior metal stairs open tread diamond plate fully welded steel steps solid railings.
Exterior metal stairs with open tread diamond plate fully welded steel steps and solid railings.
Outside diamond plate steps landing picket railings
Outside diamond plate steps with landing and picket railings
closed diamond stairs
Closed diamond steel plate stairs
exterior staircase Supports
Exterior staircase with supports
diamond plate iron stair piperail
Diamond plate iron stairs with piperails
Boiler room catwalks fixed ship ladders constructed structural steel grating bolts
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
Curved structural stair tower framing. (NY, NY)
Open tread flush mount bolt steps
Open tread flush mount bolt steps
Open tread simple steel staircase and guard
Open tread simple steel staircase and guard
diamond plate metal treads bolted stringers
Diamond plate metal treads bolted to stringers
Institutional Steel staircase stringers
Institutional Steel staircase stringers. (Brooklyn, NY)
Open tread diamond plate steel staircase
Open tread diamond plate steel stairs with support columns and half inch picket railings, all fully welded.
tread fire stairs
Treaded fire stairs
interior-metal-staircase
Interior metal staircase
floating steel open staircase rooftop custom iron works
Floating steel open staircase on rooftop custom iron works
closed tread diamond plate-metal steps
Closed tread diamond plate metal steps
Galvanized open tread staircase deck porch
Galvanized open tread staircase and deck porch
Diamond plate galvanized staircase
Diamond plate galvanized staircase
Double structural steel cement pan institutional staircase steel framed landing
Double structural steel cement pan institutional staircase w steel framed landing
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Why Contractors and Building Owners Choose Steel Masters NYC

Custom fabricated to your specs — every staircase is built to your building’s exact dimensions. We take field measurements, produce shop drawings, fabricate in Brooklyn, and install with our own crew.
NYC requirement — all staircases built to building standards covering riser height, tread depth, landing dimensions, and handrail requirements.
All staircase types — indoor and outdoor, closed tread diamond plate, open tread bar grating, concrete-filled stair pans, floating architectural staircases, and ships ladders.
New construction and full replacement — we handle complete demolition and replacement of existing staircases as well as new construction installations for renovation and new-build projects.
Fabricate-only or full install — we can fabricate and deliver to your site for installation by your own crews, or handle the complete fabrication and installation package.
50+ years of NYC commercial ironwork — Steel Masters Inc. has fabricated steel staircases for hundreds of general contractors and building owners across New York City since 1972.

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.

 

Steel Staircase Frequently Asked Questions

What types of steel staircases does Steel Masters NYC fabricate?

Steel Masters NYC fabricates all types — commercial open-tread staircases, closed-tread indoor metal staircases, outdoor galvanized staircases, steel egress staircases, rooftop access stairs, and custom configurations for commercial, industrial, and residential buildings throughout New York City.

Do you fabricate both interior and exterior steel staircases?

Yes. Interior staircases are typically mild steel or iron with closed treads or stair pan configurations. Exterior staircases are fabricated from galvanized steel with diamond plate or open grate treads for safety and weather resistance.

Can you replace an existing staircase in an NYC building?

Yes. We handle full staircase replacements including demolition and removal of the existing unit. We work with property managers, general contractors, and building owners to replace deteriorating staircases throughout NYC.

Do you fabricate steel staircases for residential properties?

Yes. In addition to commercial buildings, we fabricate and install steel staircases for residential properties throughout New York City — including brownstones, townhouses, rowhouses, and multi-family buildings. Common residential projects include basement access stairs, exterior decks, and rooftop access stairs.

Who do you build steel staircases for?

We build for apartment buildings, office buildings, hospitals, schools, factories, industrial facilities, retail stores, restaurants, government buildings, brownstones, townhouses, and general contractors throughout the New York metro area.

(888) 577-8335