NCC 2022 Volume One - Building Code of Australia Class 2 to 9 buildings
Classification
Building class 1a Building class 1b Building class 2 Building class 3 Building class 4 Building class 5 Building class 6 Building class 7a Building class 7b Building class 8 Building class 9a Building class 9b Building class 9c Building class 10a Building class 10b Building class 10c

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Classification
Building class 1a Building class 1b Building class 2 Building class 3 Building class 4 Building class 5 Building class 6 Building class 7a Building class 7b Building class 8 Building class 9a Building class 9b Building class 9c Building class 10a Building class 10b Building class 10c

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.

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

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.

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

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.