Off-Site Construction



Off-site construction presents an opportunity to improve project schedules and decrease project costs using techniques like prefabrication, modularization, panelization and preassembly. Quality and efficiencies improve when work is done ahead of time in a controlled environment. Additionally, reducing time and resources on site yields safer, cleaner and more efficient projects.


Prefabrication involves some level of work being completed prior to installation or final assembly on our projects. Prefabrication ranges from assemblies, spools and racks to wall and building sections. Significant prefabrication efforts are commonly performed at an off-site location but can certainly be completed on-site in an area other than that of the final assembly.


Volumetric prefabrication refers to the three-dimensional aspect of a particular assembly rather than the flat, two-dimensional aspect of panelized work. Both approaches can be effective for projects, but how the assemblies are erected can differ. The level of completion or finish can vary significantly depending upon the needs of the project and can range from simple rough-ins to complete façades and interiors.


Panelization is the construction of interior or exterior wall or floor assemblies, typically completed at an off-site location in a controlled environment. Panels have a wide range of material options and are set in place upon delivery to the site to complete the interior partitions or exterior wall assemblies. As with volumetric components, the level of complexity of panelized assemblies can vary significantly.

Multi-trade Assemblies

Perhaps the greatest value is realized with off-site construction techniques when multiple trades work together on largescale assemblies. Whether hosted in a construction manager-controlled facility or in a trade partner’s fabrication shop, integration of a robust VDC coordination effort allows project partners to visualize, fabricate and deliver an exact fit, bringing value to our projects.  These “plug and play” units reduce site congestion and total tradesperson hours on-site while enhancing quality and safety.



Off-Site Construction - Whiting-Turner

OhioHealth Neuroscience Center at Riverside Methodist Hospital

This project entails the design and construction of a 400,000 SF neuroscience/cardiac patient tower, including 224 individual private beds, renovation of existing surgery suites, linear accelerator, MRIs and CT scans, operating rooms, interventional radiology, outpatient clinics, 500-car addition to a parking garage, 7.5 MW emergency generator plant, central plant expansion and several acres of sitework.

Off-Site Construction National Leader
Jason Hannah
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