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The slate mattress of a carom billiards table must have a minimal thickness of forty five millimetres and in tournaments recommended heating temperatures is 33-37 °C (91-99 °F), which helps to keep moisture out of the cloth to help the balls rolling and rebounding in a constant manner, and customarily makes a table play faster. Snooker cloth historically has a directional nap, upon which the balls behave in a different way when rolling towards vs. 1⁄8-in (51-fifty four mm) balls, and this type of table has smaller, slim pockets (the width is calculated as the ball diameter multiplied by 1.6, and is constant in any respect six pockets), with rounded entrances and practically parallel sides, like those on a snooker desk. On a coin-operated desk, the object balls are deposited inside an inaccessible window until the desk is paid once more, allowing the balls to be launched into the compartment, whereas the cue ball is normally separated into its own ball return, usually utilizing a different sized ball. On snooker and English billiards tables, the pocket entries are rounded, while pool tables have sharp "knuckles". A snooker desk has six pockets, one at each corner and one at the centre of every of the longest facet cushions.

A pool table, or pocket billiards table, has six pockets - one at each nook of the desk (nook pockets) and one at the midpoint of each of the longer sides (aspect pockets or middle pockets). Cushions (also typically referred to as "rail cushions", "cushion rubber", or not often "bumpers") are positioned on the inside sides of a table's wood rails. There are six alongside each long rail (with the aspect pocket interfering with the place the seventh one would go, on pocket billiard tables) and three along each short rail, with every of the 4 corners counting as another in the mathematical programs that the diamonds are used to calculate. The profile of the rail cushion, which is the cushion's angle in relation to the mattress of the table, varies between desk sorts. This impacts how correct pictures must be to get right into a pocket, and how fast they can be when not dead-on, including pictures that run along and towards a cushion, making snooker harder to play than pool.

A potential result of drop pockets is that if too many balls go into the identical pocket, it could fill up the receptacle and stop any extra balls from going in that pocket, requiring that some be moved out of the pocket manually earlier than shooting once more. Other sorts of billiard tables are used for specific games, similar to Russian pyramid and Kaisa which use a '12 ft by 6 ft' table (much like a snooker desk however with a lot smaller pockets), and Asian four ball which uses a pocketless 8 ft by 4 ft table. 1⁄4-inch (57 mm) balls, wider at the aspect (center) pockets than the corners. This "pace" of the cloth impacts the quantities of swerve and deflection of the balls, amongst different points of game finesse. Another case is the outline of the triangle rack behind the foot spot the place the balls are racked in straight pool, because the define of this space is strategically vital all through the sport. The relative size of the ball and the pocket makes the sport very difficult. Eight if any, has a powerful effect on how easily a ball is accepted by the pocket (the "pocket velocity"). K-fifty five cushions have cloth, often canvas, vulcanized into the highest of the rubber to regulate rebound accuracy and pace.

The thickness of this cloth determines the table's speed (lack of friction) and responsiveness to spin, thicker cloths being longer lasting however slower and fewer responsive. Most bar tables, which get much use, use the slower, thicker blended felt because it's cheaper. Snooker tables use an L-shaped profile, such as the L77 profile. In keeping with the WPBSA official rule book, "the pocket openings shall conform to the templates owned and authorised by The World Professional Billiards and Snooker Association (WPBSA)". The organizations don't acknowledge tournament play or data (most breaks, and so forth.) if not performed on tables that conform to then-present templates. An electrically heated desk is required below international carom billiard tournament rules 'in order to make sure the very best rolling', though temperatures are not specified. For tournament competition below WPA world-standardized rules (and league play underneath derived rulesets), the mattress of the pocket billiard desk have to be fabricated from slate no less than 1 inch (2.54 cm) thick. A heated desk is required beneath worldwide carom rules and is an particularly essential requirement for the games of three-cushion billiards and artistic billiards.