The Armstrong Cork Company (formerly of Armstrong World Industries

Armstrong World Industries

Armstrong World Industries, Inc. is an international designer and manufacturer of floors, ceilings and cabinets. Based in Lancaster, Pennsylvania, Armstrong operates 40 plants in 10 countries and has approximately 12,300 employees worldwide. In 2006, Armstrong’s net sales were $3.42 billion, with...

) located at 2349 Railroad Street in the Strip District neighborhood of Pittsburgh, Pennsylvania

Pittsburgh, Pennsylvania

Pittsburgh is the second-largest city in the US Commonwealth of Pennsylvania and the county seat of Allegheny County. Regionally, it anchors the largest urban area of Appalachia and the Ohio River Valley, and nationally, it is the 22nd-largest urban area in the United States...

, was built circa 1901, and designed by architect Frederick J. Osterling

Frederick J. Osterling

Frederick John Osterling was an American architect, practicing in Pittsburgh from 1888....

. The building was added to the National Register of Historic Places

National Register of Historic Places

The National Register of Historic Places is the United States government's official list of districts, sites, buildings, structures, and objects deemed worthy of preservation...

 on May 10, 2005, and to the List of Pittsburgh History and Landmarks Foundation Historic Landmarks in 2007.

Today, the building is maintained as loft

Loft

A loft can be an upper story or attic in a building, directly under the roof. Alternatively, a loft apartment refers to large adaptable open space, often converted for residential use from some other use, often light industrial...

 apartment

Apartment

An apartment or flat is a self-contained housing unit that occupies only part of a building...

s (since May 2007), and is called "The Cork Factory " (also known as the "Cork Factory Lofts", and "The Cork Factory - loft apartments on the river").