About PennFab

Since 1983, PennFab has been a family-owned steel manufacturing company built on relationships and quality work. Located in Morrisville, PA, our 230,000 square foot facility and state-of-the-art equipment help us stand out from other steel companies in Pennsylvania and handle projects of any size.

Whether you are a customer or a vendor located in the PA tristate area, DC, NY, or even Boston and the rest of New England, PennFab will go above and beyond to deliver the products you need with a professional and positive experience.

industry professionals

Structural steel manufacturers that can take on your next project

Our team of structural steel manufacturers is composed of industry professionals, including in-house CWI (certified welding inspectors) and AWS D1.1 and D1.5 certified welders. PennFab is an AISC certified and PennDOT certified steel manufacturing company with a keen focus on quality and ensuring customer specifications and requirements are strictly adhered to.

The in-house engineering department uses the latest 2D (AutoCAD), 3D Modeling (Tekla/Xsteel & Solidworks) and manufacturing software systems to help make your next project a success. Our experience and knowledge are used to improve manufacturability and reduce fieldwork, saving our customers time and money and setting us apart from other steel manufacturing companies.

Our facility has bays with clear spans up to 100’ wide by 600’ long and are 100% crane served, with capacity to 30 tons and 25’6” under the hook. Our indoor rail spur allows for efficient and high-capacity movement of material and product in and out of our facility. Packed with state-of-the-art, fully automated robotic processing and welding equipment, PennFab can handle projects of any size or complexity, including:

  • Rail stations
  • Railroad catenary
  • Highway sign structures
  • Elevated platforms
  • Substations
  • Canopies
  • Construction support
  • Bridge components
  • And more!

If you are searching for structural steel manufacturers that can take on your next project, we are your top choice among other steel companies in PA. As an American-made business, PennFab can deliver high-quality end results produced by the best workers, equipment, designs and processes without receiving or shipping anything overseas. We comply with the “Buy America” act, wherein most, if not all, of our material is melted and manufactured right here in the USA.

AISC-Certified Custom Steel Fabrication Company

When your contract requires an AISC-certified steel manufacturing company, you are promised a certain level of quality that distinguishes the top-tier from the rest of the crowd. Such a certification ensures quality, safety and accountability, holding such steel manufacturing companies to a higher standard than most. PennFab has excellent record-keeping that ensures quality steel grades that are tracked from their origin, as well as control over the fabrication of products. To have the peace of mind that comes from an AISC certification is ideal in an industry with an emphasis on safety.

Our Capabilities

When it comes to steel fabrication, PennFab’s structural steel manufacturers have the capacity to invent a unique solution for your project through modern automated fabrication or welding, thanks to high-tech robotic equipment right here in our facility. Whether it is a one-time or recurring job, we are ready to accept. We offer fabrication of carbon steel, stainless steel, and aluminum for:

  • Welding
  • Fabrication & processing
  • Engineering
  • Assembly
  • Contract manufacturing
  • Fabricated parts
  • Metal supplies
  • Subcontracting
  • Miscellaneous metals
  • Construction support steel

Choose One of The Top Steel Companies in Pennsylvania

Whether you are here in the Pennsylvania tristate area, from as far south as DC, or as far north as NY, Boston and the rest of New England, PennFab is always prepared to handle your contract. If you are interested in services from one of the premier steel companies in PA, don’t hesitate to reach out! We are your go-to steel manufacturing company and can deliver products that go above and beyond your expectations.


What people say

Kim O'Malley

The PennFab family is one you won’t find anywhere else. Steve and Heather are amazing to work with! Being Veteran-owned and improving upon the safety of our railroad stations, bridges, and much more, I recommend PennFab to anyone who needs a solution or a unique job!

Lance Bachmann

Great company great work!!!


Very modernized shop. I worked there for only a few months back in 2015. Overall pretty laid back company. Their pay rates for welders could be higher main reason I left. If it wasn't for that I probably would stayed.

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