What do treads refer to in a theatre?

In theatre, treads refer specifically to steps that connect different levels on the stage. This term is commonly used to describe the stair-like structures that allow performers to move between raised and lower areas of the stage, enhancing both functionality and design. Treads are essential for staging as they create dynamic movement options for actors and improve sightlines for the audience by allowing varied heights and perspectives within a scene.

The other options relate to different aspects of theatre. Lighting equipment encompasses various tools and devices used for illumination, costume storage areas refer to spaces designated for keeping costumes organized and accessible, and seating arrangements for the audience pertain to how chairs or benches are arranged in the auditorium. While all these elements are important to a theatre's operation, only the first option accurately defines what treads are within the context of a theatre setting.