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Steel Door Institute

SDI Member

Manufacturing, quality and performance standards

Hollow Metal Manufacturers Association

NAAMM/HMMA Member Since 1987

Performance standards and specifications

Underwriters Laboratories

UL Listed for Fire and Windstorm

UL listed for Fire and Wiindstorm


Fenestration, Acoustical and Performance Testing

Fenestration, Acoustical & Performance Testing

Architectural Testing

Acoustical Testing


Door & Hardware Institute

Door and Hardware Institute


Company History

Founded in 1980, MPI has become a leading manufacturer of custom steel doors, frames and accessories. 

The company’s modern production facilities of more than 55,000 square feet are located in Corbin, KY, USA adjacent to the main offices. Facilities include an advanced Amada Fabrication Center housing automated punching and forming equipment 

Learn why it is a good decision to specify and use MPI doors and frames >>>

What We Do

MPI produces custom steel doors and frames for distribution nationally and internationally. As an active member of the Steel Door Institute (SDI) and the National Association of Architectural Metal Manufacturers (NAAMM), MPI adheres to the manufacturing specifications established by the SDI and the Hollow Metal Manufacturers Association (HMMA) division of NAAMM. Products meet or exceed requirements of specification standards ANSI A250.8 and ANSI A250.4.

MPI offers a wide range of doors and frames in various thicknesses ranging from .042 to .093 steel. Products are manufactured from highest quality commercial grade steel in cold-rolled, A60 galvanneal or G90 galvanneal. Products are manufactured for fire ratings up to three hours positive pressure including, hard to find stainless steel doors and frames. Fire rated products are labeled with an Underwriters Laboratories listing mark to indicate compliance with UL, NFPA and ASTM specifications. See separate fire rating listings for additional information.

Utilization of the most up to date technological innovations assures production of quality products at competitive prices. Powerful databases and AutoCAD engineering systems aid in information processing. These, along with an experienced engineering staff, allow MPI to offer one of a kind service in the integration of complex hardware types. Often called upon by architectural firms, our staff is available to assist in the design of the most complicated door and frame systems.

Comprehensive Quality Assurance initiatives have been developed and implemented to ensure all products are subjected to rigorous inspection and exacting QA measures before leaving the factory. It is a wide-ranging program encompassing manufacturing processes from order entry through delivery. Quality and excellence in all phases of operation have brought MPI the recognition as a leading manufacturer of custom doors and frames. Custom means every door and frame is carefully hand-crafted to exact specifications. We do not pull components from a shelf, modify them and ship to a jobsite. When MPI says "custom", it means fully custom manufactured.

MPI Mission

Our people and our products are committed to your success...

The Mission of MPI is to provide our customers with the very best hollow metal products and support our products in a world class manner.

We intend to conduct our business in a professional, ethical and dependable fashion.

We will treat our customers, suppliers and each other with respect and consideration.

We will make a commitment to do the very best job we are capable of and expect the same from our coworkers.

We will develop partnerships with our customers that require us to constantly improve our products and services to meet and exceed their expectations.

MPI provides quality and reliable products you can count on. In addition, our friendly and professional staff is here to answer any questions you may have about our products or services.

Whether you need a quotation on a bid project or expedited delivery on your order, we have what you need at competitive prices.  At MPI, our goal is to provide you with courteous, expedient, professional service of the highest caliber.

Click this button to view our Portfolio of Prominent Projects

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Operable segmented radius window wall system
Bryan Station High School
Lexington, KY

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