A regulation NBA backboard will be rectangular shaped and 54 x 32 inches in diameter.
The link has the official rules for the NBA.
A regulation NBA basketball court is 94' long by 50' wide.
A NBA regulation backboard is 72" wide x 42" high
The regulation height for a NBA and NCAA basketball hoop is 10 feet.
The regulation size for basketball nets are all the same at ten feet. The regulation for high school, college, and the NBA/WNBA use nets that are ten feet high.
A regulation NBA basketball court is 94 feet in length
NBA regulation requires to be 7.5 to 8.5 pounds in air pressure.:)
The center circle on an NBA regulation basketball court has a circumference of 37.7 feet (37 feet 8.4 inches).
So pros can play basketball
These are the different regulation court sizes:#1 NBA/NCAA - regulation basketball court dimension is 94' long by 50' wide.#2 High School basketball court dimension measure 84' long by 50' wide.#3 Jr. High School basketball court dimension measure 74' long and 42' wide
The diameter of an official NBA basketball hoop is 17 inches, about an inch less than twice the diameter of a men's ball. Other sizes are available for practice or games other than regulation basketball.