NCC 2022 Volume One - Building Code of Australia Class 2 to 9 buildings
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C4

Part C4 Protection of openings

Part C4 Protection of openings

NSW C4D12 Bounding construction: Class 2 and 3 buildings and Class 4 parts2019: C3.11

Delete subclause C4D12(4) and insert NSW C4D12(4) as follows:

(4) Except as provided for in NSW C4D12(5), protection for a doorway required under (1), (2) or (3) must be at least—

  1. in a building of Type A construction — a self-closing –/60/30 fire door; and
  2. in a building of Type B or C construction — a self-closing, tight fitting, solid core door not less than 35 mm thick.
Delete subclause C4D12(5) and insert NSW C4D12(5) as follows:

(5) In a Class 3 building used as a residential care building protected with a sprinkler system complying with Specification 17, protection for a doorway must be at least a tight fitting solid core door not less than 35 mm thick that is—

  1. self-closing; or
  2. fitted with a free-arm action closing device which closes the door or causes the door to remain closed (without preventing manual re-opening), upon the detection of smoke caused by a smoke detector located within the room.
Insert NSW subclause C4D12(10) in clause C4D12 as follows:

(10) In a Class 9b building used as an entertainment venue, openings in construction required to separate one space from another must be protected in accordance with C4D5.

2019: C3.11
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