2'0" x 4'0" plaster board or plaster ceiling board was used to be very popular in the construction of suspended ceiling in Selangor, especially for eatery and coffee shop ( mamak restaurant ). This ceiling board / ceiling tile was chosen over gypsum board for it's price.
But in the last few years, gypsum board has become the most commonly used ceiling board for suspended ceiling in Klang Valley, Selangor. The difference in price between the two types of ceiling boards has been narrowed down to become marginal.
Gypsum ceiling board, being thicker, will not sag as much as compared to plaster ceiling board under a humid interior condition. Because of this feature, most of our customers from the factories in Shah Alam, Petaling Jaya, Subang Jaya and Port Klang have chosen gypsum board over plaster board for their suspended ceiling.