In the Hellenistic theater, the doors and their frames which pierce the upper story of the skene or episkenion. Description: The Greek word thyromata means either "a room with doors to it, a chamber" or "a door with posts and frame." These Hellenistic doorways of the peiskenion, or upper storey of the skene, alternated with stone piers or columns. The frames were sometimes grooved, and painted panels could be set into these openings along the facade; other times the frames were fitted with doors which would be thrown open to give an interior view of a room. The number of thyromata varied in number in the different theaters from one to seven.