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9.10.13.3.(1)
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Application
Application 1: 
Minimum thickness of wood frames for doors, where the frames have not been tested and rated, and the doors:
  • are required to provide a 20 min fire-protection rating [see Article 9.10.13.1.], or
  • are permitted to be 45-mm-thick, solid-core wood, as stated in Sentence 9.10.13.2.(1).
This applies to buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
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Intent
Intent 1: 
To supersede the requirements of Sentence 9.10.13.1.(1), which would otherwise require the frames to be tested and rated, if certain conditions are met [i.e. wood frames have a minimum thickness], on the basis that the frames will provide an inherent and sufficient degree of resistance to the spread of fire.
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