This document appears to be a reflected ceiling plan and legend for a multi-floor commercial building. It includes room labels and dimensions for various spaces on a mezzanine level including storage rooms, restrooms, conference rooms, offices, and more. The ceiling height is noted to be 12'0" and various ceiling fixtures are labeled including supply air registers, return air registers, recessed can fixtures, and sprinklers. Dimensions are provided for the overall space as well as individual rooms.