Basketball rims are orange painted goals attached to the backboard in a game of basketball. Basketball rims have an inner diameter of 18” | 45.72 cm. Nets are hung from the bottom of the rim with lengths between 15”-18” | 38.1-45.7 cm. Basketball rims are mounted 10’ | 3.05 m from the court floor.
The official size of the basketball used by the NBA is 29.5 inches in circumference with an average diameter of 9.51 inches. With those dimensions, the ball can go through a standard rim with an inner clearance diameter of 18 inches. That’s the same size used throughout men’s college and high school basketball leagues.
For anyone, male or female, between the ages of nine and 11, a ball size of 28.5 inches in circumference is recommended.Boys and girls between the ages of 4 and 8 should use a basketball between the sizes of 22 inches and 25.5 inches in circumference.
The Rim. A basketball hoop is circular in shape and has an inside diameter of exactly 18 inches from edge to edge. These 18 inches should be consistent from all point-to-point measurements that cross the exact center of the hoop. The metal hoop should also contain harness hooks to secure the net.
Basketball backboards are flat elevated vertical boards with mounted baskets, or rims. Regulation basketball backboards have a width of 72” | 183 cm and a height of 42” | 110 cm with an inner rectangle that is 24” | 61 cm wide and 18” | 45.7 cm tall. All rims are hung 10’ | 3.05 m above the court.
the rim is exactly the size of 2 bballs, so they will get stuck and not go thru the hoop. and the rims are the same size, because some college teams play in Tuis Eet & drink