Chapter 04 of 5
Sightline Geometry
Mastering the C-Value: the math that ensures every fan sees every play.
- The Focal Point
The Point of Focus
Designers start with the 'Point of Focus,' usually the nearest touchline or the center of the pitch. Every seat's elevation is calculated from this exact spot.
- Geometry
The C-Value Calculation
The 'C-Value' is the vertical distance between a spectator's eyes and the top of the head of the person in front. It is the gold standard of stadium math.
- Physics
The 60mm Minimum
Architects aim for a C-Value of at least 60mm to ensure views over hats or slightly taller fans. The 'Super-Sighting' standard is often set at 90mm.
17 more cards in this chapter
Could you answer this?
What does a stadium's 'C-Value' specifically measure?
🏟️ The Stadium Architecture
- 01The Colosseum TemplateExamine the Roman blueprints that still dictate how we enter and exit arenas.
- 02The Acoustic CauldronDiscover the physics of roar: how roofs and concrete weaponize crowd noise.
- 03Retractable EngineeringA deep dive into moving 10,000-tonne pitches and the tech behind hybrid turf.
- 04Sightline GeometryMastering the C-Value: the math that ensures every fan sees every play.
- 05The Tribal GeographyHow stadium location and 'ends' turn concrete structures into sacred homes.