A regulation NBA basketball must contain between 7 1/2 and 8 1/2 pounds of pressure per square inch, or PSI. The ball also must exhibit an official NBA approval mark. At the beginning of an NBA game, each team must have access to six balls during the warm-up period. A regulation backboard measures 6 feet wide and 3 1/2 feet tall.
This is the official size for the NBA and men’s college and high school basketball leagues. Size 6: 28.5″ 20 oz: 7.5 to 8.5: This is the official size for women’s high school, college, and pro basketball. Size 5: 27.5″ 17 oz: 7.5 to 8.5: This is a youth basketball size used for girls and boys ages 9 – 11. Size 4: 25.5″ 14 oz: 7.5 to 8.5
The NBA uses full-grain leather balls made by Wilson. They are size 7 and weigh 22 ounces, have a circumference of 29.5 inches, and are inflated between 7.5 to 8.5 PSI. These balls are orange in color with black seams for grip. WNBA. Spalding has been making the official game balls for the WNBA since 1997 when the league first started.
A regulation basketball used in NBA play is inflated to an air pressure between 7.5 and 8.5 pounds of pressure per square inch. Many balls are inflated to the average pressure of 8 pounds. Regulating a basketball's air pressure ensures fair playing conditions throughout a league. A ball's internal air pressure determines the height of its bounce.
To begin with, the NBA basketball is produced by Spalding, and the official size for men’s tournaments has to be 29.5 inches in circumference. With a weight of 22 oz., the ball can be inflated with a pressure range of 7.5 to 8.5 psi. These balls are made up of orange leather having black lettering, and are of size 7.
An NBA basketball must be inflated to a pressure of 7.5 to 8.5 PSI. The WNBA uses the same pressure regulations.
The official NBA basketball has a circumference of 29.5 inches and an air pressure of 7.5 to 8.5 psi. The official NBA basketball is commonly referred to as a size 7. WNBA Basketball Weight. The WNBA and the NBA may have a similar 10-foot hoop and 50 feet x 94 feet of court, but there is a slight difference between the weight of the basketball they use.
The officiating crew chief will inspect the three game balls for wear/tear and ensure that the balls comply with the NBA-approved ball pressure specification of between 7½ and 8½ PSI.