Modeling radio frequency transmission coverage in complex indoor environments requires high-fidelity 3D models and advanced electromagnetic calculations. The 3D ray tracing code in Wireless InSite can accurately predict received power coverage even in a multi-room environment containing many walls and different material types. In order to verify the accuracy of the code, the floor plan of Remcom’s business offices was modeled in the software with a WiFi antenna. We then used a third party tool and a laptop computer to create a coverage plot of the received power throughout several of the suites. In this presentation we present the results for this basic measurement campaign.