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A Leader in the Manufacturing of
Pre-Assembled Buildings Since 1975

Since 1975, Keystone Structures has been manufacturing the finest quality pre-assembled buildings and structures for a vast array of industries including, petroleum, parking, industrial, security, transit, and sanitation.

During this time, we have produced and delivered more than 8500 booths, guardhouses, convenience stores, restrooms, in-plant offices, and other prefabricated structures, enclosures and shelters for customers throughout the United States.

Our booths are completely pre-assembled, wired, and outfitted in our 30,000 square foot production facility in Kennett Square, Pennsylvania.


Learn more about Keystone projects, history, and suppliers.