* Bowling Dimensions

Lane Dimensions

The bowling lane is 60 feet (18.28 metres) from the foul line to the head pin (1-pin). About fifteen feet (4.57 metres) from the foul line are a set of guide arrows. The lane is 3.5 feet (1.07 m) wide and normally consists of 39 wooden boards or a synthetic material. The bowling lane has two sets of approach dots; from the foul line back to the first set of approach dots is about 12 feet (3.65 metres) and to the second set of approach dots is about 15 feet (4.57 m) (an additional 3 feet/0.91 m).


Pin Dimensions

USBC rules specify that a pin must be 15 inches (38.1 cm) tall and about 4.7 inches (11.4 cm) wide at the "belly" of the pin, where a rolling ball would make contact. There are additional measurements which delineate the shape. The weight of a single pinmust be at least 3 pounds, 4 ounces (1.47 kg) and no more than 3 pounds, 10 ounces (1.64 kg). Within a set of ten pins, the individual weights may vary by no more than 4 ounces (113.4 g), if made from wood or plastic cloated, or just 2 ounces (56.7 g) if synthetic. The pins must show the name and mark of the maker, "USBC Approved", and appear uniform.


Ball Regulations

For competition bowling, a ball must be made of a completely solid material and its weight must be distributed evenly. The circumference of the ball must not be more than 2.25 feet (0.686 m), and the ball cannot weigh more than 16 pounds (7.26 kg). The ball must have a smooth surface over its entire circumference except for holes or indentations used for gripping the ball, identification letters and numbers, and general wear from normal use.

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* Bowling Basic Rules