Define gridiron and its relation to the flying system.

• A. The seating grid
• B. The area above the stage where the fly system lines are routed, often containing the head blocks and connective hardware
• C. The control grid for lighting
• D. The grid used for audience movement

Answer: (B)

Gridiron is the space above the stage where the fly system’s lines are directed and secured. It sits above the grid and houses the head blocks and the connective hardware that guide and connect each flying line. This upper area lets riggers route lines from the loft to the battens, change direction as needed, and maintain tension safely, while keeping everything organized and accessible for inspection and maintenance. It’s not about seating areas, lighting control panels, or audience movement—those are different concepts.