There are many sizes and styles of pool and billiard tables. Generally, tables are rectangles twice as long as they are wide. Most pool tables are known as 7-, 8-, or 9-footers, referring to the length of the table's long side, though a standard size used now is approximately 9ft by 4.5ft. Traditionally for Billiards, 12ft long table was common but these days 10ft tables remain the standard size for billiard games. The slates on modern billiard tables are usually heated to stave off moisture and provide a consistent playing surface. A Pool table has a bed made of three pieces of thick slate to prevent warping and changes due to humidity.
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"Billiards Table vs Pool Table." Diffen.com. Diffen LLC, n.d. Web. 23 Nov 2014. < http://www.diffen.com/difference/Billiards_Table_vs_Pool_Table >