(1) Combustible stage flooring supported on noncombustible structural members is permitted in a building required to be of noncombustible construction.
(2) Wood members more than 50 mm but not more than 375 mm high applied directly to or set into a noncombustible floor slab are permitted for the construction of a raised platform in a building required to be of noncombustible construction provided the concealed spaces created are divided into compartments by fire blocks in conformance with Sentence 3.1.11.3. (2).
(3) The floor system for the raised platform referred to in Sentence (2) is permitted to include combustible subfloor and combustible finished flooring.
(4) Combustible finished flooring is permitted in a building required to be of noncombustible construction.