National Electrical Contractors Association

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Index #: F3410

Measuring Productivity and the Effect of Prefabrication on Productivity (PDF)

Field and office productivity and the use of prefabrication in the Electrical Contracting industry are intertwined. This project explored the impact and use of prefabrication within Lean Construction and BIM and VDC. The focus was to untangle and objectively characterize the relationship between productivity and prefabrication. The investigation resulted in a set of best practices that can help Electrical Contractors optimize prefabrication to obtain peak productivity.

To understand how productivity of field and office personnel is measured and to identify the impact of prefabrication on operations, the research team conducted specific “case studies” with 14 leading union and non-union electrical contractors and with leading mechanical contractors throughout the United States. Individual site visits and personal interviews allowed a deeper dive into the changes electrical contractors made to increase their use of prefabrication.

The case studies explored the impact on productivity for field and office operations. These studies provided tactics to guide other electrical contractors who want to increase their prefabrication efforts and understand how they could use prefabrication to increase their competitiveness in the marketplace.

The final investigative report includes the findings from the case studies and provides a series of tactics that may be used by an electrical contractor for implementing prefabrication and measuring its impact on productivity. 

The report presents three different levels of tactics for contractors at different stages:

- beginners at prefabrication,
- contractors seeking to dramatically increase their prefabrication efforts
- advanced prefabricators who can benefit from a few additional tactics.
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