For the construction of suspended ceiling, the installation sequence is important. This is to ensure a good flow of work to save on time and also minimise on wastage through damage to other materials of the system. For a suspended ceiling system that comprises infill units such as gypsum ceiling board or plaster ceiling board, the latter is to come in taking the last spot in the sequence order.
As can be seen in the photos in this posting, they are arranged in sequence of installation of a suspended ceiling system. The ceiling board will be put up last to finish the whole process of suspended ceiling construction.