Cue sports tables are usually heated to stave off moisture and provide a consistent playing surface. The length of the pool table will typically be a function of space, with many homeowners purchasing an table as a compromise. Full-size pool tables are 4.5 by (interior dimensions). High-quality tables have a made of thick slate, in three pieces to prevent warping and changes due to temperature and humidity. Smaller bar tables are most commonly made with a single piece of slate. Pocket billiards tables of all types normally have six pockets, three on each side (four corner pockets, and two side or middle
World Pool-Billiard Association a country's national federation. The chart and table shows the WPA's members : , the WPA board of directors are: World Pool-Billiard Association The World Pool-Billiard Association (WPA) is the international governing body for pool (pocket billiards). It was formed in 1987, and was initially headed by a provisional board of directors consisting of representatives from Japan, the United States, Sweden, and Germany. , the WPA president is Ian Anderson of Australia, and the organization is headquartered in Sydney. It is an associate of the World Confederation of Billiards Sports (WCBS), the international umbrella organization that encompasses the major cue