Underground utility and excavation contractors rely on Efficiency Production’s industry-leading trench shielding and shoring equipment to keep their workers safe, and their production and profits high.  The trust and confidence contractors feel for their Efficiency trench box is evident in the many brown-painted trench shields that are still on the job even after 10 years of hard working service of being dragged through trenches and pipelines of all types of ground conditions.  Efficiency contractor-series trench shields can take the abuse any utility contractor can dish out because they are the strongest, most well-built shoring in America.