Carrom boards are available in various board sizes and corner-pocket sizes. There are smaller boards and boards with larger pockets. Boards with larger pockets are used by beginners for easier gameplay. On traditional carrom boards, the corner pockets are only slightly larger than the carrom men, but smaller than the striker. On boards with larger pockets, it is possible to pocket the striker, resulting in a "" as in
pool. This results in a "due". On a due, the player has to return one previously pocketed carrom man to the board. The standardised association and federation size is a 74 × 74 cm (29 × 29 inch) square playing surface with 5–10 cm (2–4 in) borders. Other play-area sizes are not used in tournaments and competitions.
North American carrom North American carrom, played primarily in Canada and the
northern United States, is a variant developed around 1890 by
Christian missionaries to Asia, who brought the game back with them. Concerned with young boys loitering around
pool halls (where gambling was common), an American Sunday school teacher named Henry L. Haskell altered the game for Western tastes. Much of the game is the same, but the striker's weight is reduced and the carrom men are smaller. Generally, instead of disks, carrom men (including the striker) are rings, originally of wood but today commercially made of plastic. In addition, as an alternative to using the fingers to flick the striker, some of the American carrom boards use miniature
cue sticks. American carrom boards also have built into the corners, rather than circular holes in the board, to make pocketing easier. While traditionally made boards vary widely, current commercially produced American carrom boards, by the Carrom Company of Michigan, are squares measuring 28 inches (71 cm) to a side, are printed with checkerboard and backgammon patterns, among others, and are sold with
dice,
skittles, etc. to allow other games to be played on the same board. These boards may also be printed on the reverse with the circular pattern for playing
crokinole.
Japanese carrom Carrom was introduced to Japan in the early 20th century. Carrom became popular as , but fell in popularity in the
Shōwa period. However, carrom became known as "Hikone Karomu" (Hikone carrom) in
Hikone, Shiga. The Hikone carrom board has larger pockets (not unlike those of
pichenotte), the discs are arranged in a ring (also like in Pichette), each player is given twelve discs instead of nine, and the queen (known as the "jack") is pocketed last (similar to
Eight-ball or
Black ball).
South African fingerboard It is similar to Carrom played in South Asia, but coins are used rather than rocks.
Mexican fichapool Since 2008 there is a Mexican variation called
fichapool or colloquially,
fichapúl (from Spanish
ficha). The men (12 each side) as the strikers, are plastic rings. As the South African fingerboard, it has larger pockets. ==Commercial derivations==