Building Information Modeling (BIM), as powerful a tool as it may be, is really only as powerful as the coordination between a contractor and an engineer. One of BIM’s most useful functions is the ability to detect and report clashes to the user. Clash detection can accelerate the coordination process between disciplines by identifying issues between models faster and more thoroughly. This allows the communication between trades to focus on solutions rather than identifying problems. The process for clash detection and reporting will vary depending on the stage of the project. In order for building owners and facility managers to receive the most benefit from clash detection tools, they need to understand how the variables and goals in clash detection vary from design to construction phases.