Building Information Modeling. Building Virtually First.

Building Information Modeling (BIM) is part of our standard approach to every major project. With a customized approach for each job, we use BIM to reduce cost, help streamline the design process, optimize the schedule, eliminate unknowns, and enable fast, high-quality construction.

Some examples of how we use BIM:  
  • Fast, precise estimates. Our estimates are created from models from the start, whether a model already exists or is created by Lewis. The model is based on the individual material pieces, with automatic quantities and exact dimensions. This means less manual paperwork and more time for gap analysis, constructability, and value-adding innovation to achieve the design intent at a better price. Revising the model is even faster as the design evolves. 
  • Point Layout laser scanning and Robotic Total Station to facilitate exacting construction and as-builts. Older laser scanning technologies were slow and labor-intensive, and allowed only visual comparison of scan vs. design. Point Layout allows one layout person (saving labor) to use a small handheld device that ties instantly into an existing 3D grid. The output integrates bi-directionally into Revit and Navisworks with actual dimensional data. For example, using this technology, we can verify exact placement of a steel truss as it is hoisted into place. 
  • Optimizing prefabrication. Lewis self-performed the wood framing on our ODVA Lebanon Veterans Home project, winner of numerous awards. To take advantage of the repetitious design and meet budget, the team chose a panelized wall system. The team modeled the entire MEP and fire sprinkler systems in BIM prior to the completion of the final wall panel design. This helped direct the wall panel factory, who framed walls with mechanical openings, moved studs for plumbing, and installed backing for fixtures. The additional shop drawing coordination and wall framing modifications were done at no cost while saving thousands in potential re-framing and mechanical conflicts.