A modular, reusable temporary enclosure system is particularly suited for the renovation of buildings having stacked concrete floors supported by steel and/or concrete columns. The system consists of a set of track components, one fastened to the floor, and one fastened to the ceiling. Columns assembled from rigid panels are supported and aligned between these components. The panel edges are connected to one another by an interfacing spline assembly. To ensure that the components can be brought up to the construction site by elevator, individual panels are shorter than the full distance between the floors.