Ten-pin bowling is a sport that uses the imperial system of measurement.
The length of a regulation lane is 60 feet from the foul line to the centre of the headpin. The lane is 42 inches wide but is measured in boards. There are 39 boards.
Board 20 is the center board, counting from either side. It is marked by the Center Arrow. Arrows are 5 boards apart for easy board counting.
The surface is free of all continuous grooves. It is perfectly flat both side to side and front to back with a maximum tolerance of just 40/1000th inch allowed.
The approach where the bowler delivers the ball is not less than 15 feet in length. The same lane finishing coating is applied from edge board to edge board.
The pin deck
The pins are located within a 91.44cm equilateral triangle, with each of the pins aligned 30.48cm apart centre to centre.
Each pin is 12 inches from its neighbour in any direction (as measured from the centre of each pin).