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
Billiard table well as a number of other British Commonwealth and European countries, the typical pool table is a 7 × 3.5 ft (2.13 × 0.91 m), although 6-foot (1.83 m) tables for the pub and home market are also common. These are the sizes used by internationally standardised blackball and the amateur World Eightball Pool Federation, as well as informal pub pool. The 7-foot size is also frequently used in North American amateur leagues, and are common coin-operated fixtures in bars and other venues. The playing surface for a 7-foot table is by . Pockets, usually rimmed at the back with