ART. 1 . . . A free-throw lane, 12 feet wide measured to the outside of each lane boundary, and the semicircle with the free-throw line as a diameter, must be marked at each end of the court with dimensions and markings as shown in Figure 1-1. All lines designating the free-throw lane, but not lane-space marks are part of the lane.
ART. 2 . . . The lane-space marks (2 inches by 8 inches) identify areas which extend 36 inches from the outer edge of the lane lines toward the sidelines. There are three lane spaces on each lane boundary line.
ART. 3 . . . The free-throw lane line and semicircle must be the same color as the three-point line. See Table 1-1, No. 3 if the use of contrasting colored-floor areas instead of the lines is desirable.