Bird's nest Areas

I found the following information about the Bird's Nest which we can relate to in our design.

Beijing National Stadium Statistics:

• 36 km of unwrapped steel
• 330 metres (1,082 feet) long
• 220 metres (721 feet) wide
• 69.2 metres (227 feet) tall
• 258,000 square metres (2,777,112 square feet) of space
• Usable area of 204,000 square metres (2,195,856 square feet)
• Seating for up to 91,000 spectators during the Olympics. (Seating reduced to 80,000 after the Games.)
• Construction cost approximately 3.5 billion yuan ($423 million USD)

http://architecture.about.com/od/greatbuildings/ig/Stadium-and-Arena-Pictures/National-Stadium.htm