In recent times, there has been a global surge in the design and construction of mass timber
buildings due to their benefits, particularly regarding sustainability. Many of these buildings
are proposed to be used in commercial premises with open-plan layouts. As discussed by
Rackauskaite et al.,[1] compartment fire experiments with exposed timber surfaces
published at the time of the authors' review were limited to a compartment area of 84 m2. In
contrast, open floor office spaces often exceed 1000 m2. To address this limitation in …