Standard Measurements used in Basketball
Playing court: College: 94 feet long by 50 feet wide (ideal dimensions). High School: 84 feet long by 50 feet wide (ideal dimensions). Baskets: Rings 18 inches in inside diameter, with white cord 12-mesh nets, 15 to 18 inches in length. Each ring is made of metal, is not more than 5/8 of an inch in diameter, and is bright orange in color. Height of basket: 10 feet (upper edge). Weight of ball: Not less than 20 ounces nor more than 22. Circumference of ball: Not greater than 30 inches and not less than 29 1/2. Free-throw line: 15 feet from the face of the backboard, 2 inches wide. Three-point field goal line: 19 feet, 9 inches from the center of the basket. In the National Basketball Association, the distance is 22 feet.