The Stack 4857 Broadway,
New York, NY

Award-winning modular

The Stack, a 38,000 sf, seven-story, 28-unit apartment building was the first modular building constructed in Upper Manhattan. Modules for the 1, 2 and 3 bedroom units were constructed off-site at DeLuxe Building Systems in Berwick, Pennsylvania and were transported to Inwood, a neighborhood at the northern tip of Manhattan, and stacked atop a steel-framed podium level. The modules where shipped with utilities and finishes installed allowing for rapid construction.

The elegance of the design was in its simplicity. The innovation and challenge of the project was to take basic building materials, utilize them to their maximum efficiency and adapt for use in modular construction. The project required fabrication, shipping and assembly of 56 modules. Module dimensions and weight were controlled by shipping and crane constraints. The modules needed to be rigid and stable while in motion – during transportation and erection. Connection details between the modules were developed such that the boxes could be lowered into place onto alignment pins and then be bolted or welded in place. Connection points positioned where they were most accessible to minimize the need to access the connections through finished walls and ceilings.

The 56 modules were erected in nineteen days with a single crane and crew of 14 workers.

This project received The National Council of Structural Engineers Associations Excellence in Structural Engineering Awards, Outstanding Project, New Buildings $10-30 Million.


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Structural Systems Used

Steel Frame Modular Construction