formwork requirements
concrete surfaces
interior
Sq. m
total interior surface area excluding cinemas
18,750
freelevel floor
10,270
soffits, walls and underside of roof
8,480
cinemas 
17,236
level floor
4,555
risers and level floor (red)
5,174
risers alone
619
ceiling soffit
5,446
vertical walls
6,171
exterior

outer skin
20,937
flat soffit underbelly
1,891

of which this portion is vertical (blue)
1,717
this proportion is horizontal (pink)
1,825
