The Japanese unit of measurement equaling 11.93 inches.
Traditional Japanese unit of measurement which is used to determine a drum's size. The exact length of a shaku varies according to the geographical area and trade in which it is used, but when applied to taiko it is about 30 cm or roughly one foot in length.
a Japanese word meaning "measure" or "scale", also used for several traditional units in Japan:  As a unit of distance, the shaku is the Japanese foot, equal to about 30.30 centimeters or 11.93 inches;  As a unit of area, the shaku equals 330.6 square centimeters (51.24 square inches);  As a unit of volume, the shaku equals about 18.04 milliliters (0.61 U.S. fluid ounce).
Measure of distance roughly equivalent to 1 foot (30 cm).
The shaku (å°º) is an archaic Japanese unit of length, approximately equal to the foot. As with other measurements, it was originally derived from nature: the average length between nodes on bamboo. Since 1891, the shaku has been defined to equal 10/33 meter (approximately 30.3 cm, or 11.93 inches), or 3.3 shaku to the meter.