slip stage

A slip stage is a theatrical device used for scene shifting, allowing for the movement of scenery, actors, and props from offstage to onstage. This is achieved by building scenery on a low platform mounted on casters, which can then be quickly rolled into view. Slip stages are a form of permanent stage machinery, often associated with proscenium stages, and are typically powered by electrical or hydraulic horizontal drives integrated into the theatre's structure. This mechanism enables rapid and efficient changes of scenery, contributing to the fluidity of theatrical productions.123