This article summarizes the main features and company information of steel stair manufacturers in Pennsylvania. We hope it will be helpful for those looking for a company in Pennsylvania or nearby.
Selecting the right steel stair manufacturer in Pennsylvania requires evaluating key criteria, including structural engineering, building code compliance, and material durability against regional weather conditions.
Commercial and industrial stairways in Pennsylvania must strictly comply with the Pennsylvania Uniform Construction Code (UCC)—which adopts the International Building Code (IBC)—as well as federal OSHA standards (29 CFR 1910.25) to guarantee structural integrity and workplace safety. Essential specifications mandate a minimum tread depth of 9.5 inches, a maximum riser height of 9.5 inches, and guardrail heights set at a standard 42 inches. Furthermore, safety regulations dictate that stair assemblies support at least five times the intended live load, with a minimum concentrated load capacity of 1,000 pounds applied at any single point.
Partnering with a supplier that possesses advanced stair engineering capabilities ensures these regulatory dimensions, headroom clearances, and load calculations are accurately integrated during the design and fabrication phases, preventing costly field modifications or compliance issues.
Pennsylvania experiences diverse weather conditions across the state, characterized by humid summers and harsh, freezing winters with heavy snowfall, ice, and frequent freeze-thaw cycles. Outdoor steel stairs exposed to moisture and road de-icing salts face heightened risks of accelerated rusting and structural deterioration.
When selecting a manufacturer for exterior stairs, choose a supplier that provides high-performance protective finishing options such as hot-dip galvanizing or heavy-duty powder coating. These advanced surface treatments establish a resilient barrier against atmospheric moisture and chemical corrosion, extending operational service life while significantly reducing long-term upkeep expenses.
Paragon Stairs is an American steel stair manufacturer that has continued to provide high-quality “Made in USA” custom metal stairs for more than 75 years.
The company specializes in space-saving spiral stairs and floating stairs that create a modern look for a space. From residential homes to commercial facilities, it offers products suited to creating spaces that combine design aesthetics and safety.
| Company name | Paragon Stairs |
|---|---|
| Headquarters address | 106 G.P Clement Dr., Collegeville, PA, USA |
| Phone number | 1-888-939-3778 |
| Official website | https://www.paragonstairs.com/ |
Crescent Iron Works is an American steel stair manufacturer with a history dating back to its founding in 1931, combined with modern fabrication technology utilizing robots.
The company specializes in manufacturing highly designed monumental stairs that can become the centerpiece of a building, making it well suited for complex, highly design-oriented custom projects.
| Company name | Crescent Iron Works |
|---|---|
| Headquarters address | 4901 Grays Ave., Philadelphia, PA, USA |
| Phone number | 215-729-1204 |
| Official website | https://www.crescentiron.com/ |
PRIME Metal Fabrication LLC is a manufacturer that handles the entire process in-house, from initial design to fabrication and on-site installation.
The company provides appropriate made-to-order steel stairs for a wide range of projects, from custom homes and renovations that emphasize spatial aesthetics to buildings that require durable construction.
| Company name | PRIME Metal Fabrication LLC |
|---|---|
| Headquarters address | 325 Woodland Avenue, Morrisville, Pennsylvania, United States |
| Phone number | (267) 399-8372 |
| Official website | https://primemetalfab.com/ |
Steel Valley Fabricators, LLC is a metal fabrication manufacturer that produces custom metal stairs and railings for commercial, industrial, and residential applications. Using durable materials such as carbon steel and stainless steel, the company offers fully custom solutions with a wide variety of tread and railing options.
It handles a broad range of work, from specialized large-scale projects that cannot be accommodated with off-the-shelf products. They make specialized products such as power plant stairs, emergency exit stairs, or custom prototypes.
| Company name | Steel Valley Fabricators, LLC |
|---|---|
| Headquarters address | 19 Talbot Ave, Braddock, PA, USA |
| Phone number | 412-271-6900 |
| Official website | https://www.steelvalleyfab.com/ |
Trinity Steel, Inc. is an AISC-certified American steel solutions company. Its team, with more than 30 years of industry experience, uses new 3D design technologies and advanced fabrication equipment to handle a wide range of work, from structural steel to custom stairs and railings, as well as highly decorative metal fabrication.
A key strength of the company is its high level of installation capability, handling everything in-house from design and fabrication to on-site installation and crane arrangements.
| Company name | Trinity Steel, Inc. |
|---|---|
| Headquarters address | 98 Antisbury Place, Rankin, PA, USA |
| Phone number | 412-271-1620 |
| Official website | https://www.trinitysteelinc.com/ |
Agar Welding & Steel is a company with AWS-certified welders and a large in-house shop, offering integrated services from the design to installation of custom steel and metal stairs. With more than 25 years of history, the company provides stairs in a wide range of specifications for commercial facilities and residential properties.
Its strengths include fast lead times of approximately two to four weeks and reliable technical capabilities offered at reasonable prices.
| Company name | Agar Welding & Steel |
|---|---|
| Headquarters address | 93 Firehouse Road, Walnut Bottom, PA, USA |
| Phone number | 717-532-1000 |
| Official website | https://agarwelding.com/ |
Mylen Stairs is a U.S. manufacturer founded in 1945 that mainly handles the design and manufacturing of spiral stairs and floating stairs. Through integrated production at its own shop, the company is known for flexible specification options tailored to budget and space, along with a wide variety of designs. With an in-house support system covering everything from sales to manufacturing, Mylen Stairs provides high-quality products for design-focused commercial facilities and residential properties with strict space constraints.
| Company name | Mylen Stairs |
|---|---|
| Headquarters address | 105 GP Clement Drive, Collegeville, PA, USA |
| Phone number | 800-431-2155 |
| Official website | https://www.mylenstairs.com/ |
The Blatt Group is not a company specializing exclusively in stairs, but as a general construction company with metal fabrication and welding divisions, it can fabricate and install steel stairs and railings. Its metal fabrication division includes AWS-certified technicians, and its strength lies in its ability to handle everything in-house, from design and welding to installation. Under thorough quality control, the company provides full-service fabrication and installation of metal products, including steel stairs and railings, for commercial, industrial, and healthcare facilities.
| Company name | The Blatt Group |
|---|---|
| Headquarters address | 8 Tube Drive, Reading, PA, USA |
| Phone number | 610-916-9828 |
| Official website | https://theblattgroup.com/ |
The Iron Shop is an American stair manufacturer mainly focused on spiral stairs. In addition to indoor and outdoor stairs, the company also accommodates special specifications such as Floating Stairs, Combo Stairs, and Half-turn Stairs. The Iron Shop makes stairs that can be installed in limited spaces to allow for better circulation between floors. The Iron Shop is a manufacturer worth considering for stair planning in lofts, decks, rooftops, and basements. Since customers can choose metal frames, wood treads, and decorative designs, the company is also well suited for creating stairs that match the exterior or interior of residential homes and small commercial facilities.
| Company name | The Iron Shop |
|---|---|
| Headquarters address | P.O. Box 547, 400 Reed Road, Broomall, PA, USA |
| Phone number | 1 (800) 523-7427 |
| Official website | https://www.theironshop.com/ |
Selecting the ideal steel stair manufacturer in Pennsylvania relies on matching your project's specific demands—whether industrial access, commercial egress stairs, or custom spiral designs—with a fabricator’s engineering expertise, adherence to OSHA and UCC/IBC codes, and weather-resistant finishes. Requesting competitive estimates from multiple leading manufacturers helps ensure you receive the optimal combination of safety, durability, and cost efficiency for your facility.
If you are looking to explore top-tier, highly capable steel stair manufacturers offering extensive service coverage across Pennsylvania and the surrounding region, check out our handpicked top choices below.
Compare manufacturers for egress, decorative, and industrial stair applications in the Ohio Valley.
| Key standards |
OSHA, AISC, AWS, etc. |
|---|---|
| Typical lead time |
6 to 8 weeks |
| CAD data | Available |
| Key standards |
IBC, OSHA, etc. |
|---|---|
| Typical lead time |
8 to 12 weeks |
| CAD data | Available |
| Standards | OSHA,ADA, etc. |
|---|---|
| Lead time | Contact for details |
| CAD data | Contact for details |