Fabrication and Level Of Development: When to Draw the Line (And Where to Model It)

This presentation will provide an in-depth discussion of fabrication and Level Of Development (LOD) from the 2015 Associated General Contractors (AGC) Building Information Modeling (BIM) Forum LOD Specification. It will address model elements at the different stages in a building lifecycle: design, construction, and ownership. The framework of the discussion will consider the LOD Specification that defines models on a scale of 100 to 500 with a particular focus of LOD 350, which the speaker originally authored and introduced to the LOD Specification committee. The content will discuss how architects, mechanical engineers, construction managers, subcontractors, and fabricators use structural element models. This will demonstrate how you can use the newly issued LOD Specification to define team expectations of what should be modeled. We will show practical examples of model detail issues, along with effective approaches to resolve the challenges using the LOD Specification as an early BIM planning tool.