Materials
Wooden boards are the most common breaking item in most martial arts, Individual boards used may range from nominal sizes as small as 6"x12"x1" to as large as 12"x12"x1" (a board with a nominal width of 1" has an actual width of 3/4"). The typical adult testing board is approximately 10"x12"x1".
The grain of the board must be cut so as to be parallel with the striking hand.
Children may use narrower and thinner boards with 4 and 5 year olds sometimes breaking boards as small as 4"x12"x1/2".
Read more about this topic: Breaking (martial Arts)
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