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Floor not resting directly onto ground may be constructed as follows:

a)    Timber framed on brick piers, steel posts or treated timber posts

b)    Suspended concrete decks using either:

• Cast in-situ concrete with reinforcing steel using uncompacted
  soil for formwork, conventional formwork or steel decking such
  as "Bondek" for formwork and slab reinforcement.
    
• Precast concrete units such as "Ultra-floor" or hollow core
  concrete planks with a cast in-situ topping.  Steel or concrete
  beams and columns may be used to support concrete floor slab.

Concrete Floor Slab - Style 1.

Concrete Floor Slab - Style 2.

Concrete Floor Slab - Style 3.