A full size FIBA regulation size basketball court measures exactly 28 by 15 meters. In the ...
The Key dimensions. The Key measures in a rectangle of 5.8m by 3.6m. The restricted area must be painted for international competitions. The rectangle areas represent the restricted areas and are marked on the playing court finished by the endlines.
Court dimensions. The playing court has a flat, hard surface free from obstructions. The dimensions of the courts may vary to account for local facilities. The standard size is 28m long and 15m wide. It can be scaled down in size, providing the variations are in the same proportions from 26m x 14m to 12m x 7m.
Professional (NBA): The key is 16 feet wide; College (NCAA) and High School: The key is 12 feet wide; Regulation courts have the backboard extending out 4 feet over the baseline into the key. A 6 foot arc (half circle) extends from the foul line away from the basket to complete the key. The 3 Point Line (Arc): Three Point lines differ as follows:
A key basketball court dimension for installation purposes is the distance from the baseline to the face of the backboard. In a setting where sanction play will occur the dimension from the baseline to the face of the backboard will be 4'.
College and High School – the 3 point arc is 19 feet 9 inches, with a straight line extending out 5 feet 3 inches (63 inches) from the baseline. The Backboard and Rim: The regulation distance from the ground to the top of the rim is 10 feet for all levels of play.
Dimensions of the key area have varied through the history of the game. Since the 2010 FIBA rule amendments (implemented following the 2010 FIBA World Championship ), its shape is rectangular for games sanctioned by all three associations, 16 feet (4.9 m) wide for both NBA and FIBA keys, and 12 feet (3.7 m) for NCAA and NAIA keys.
The basketball key lines for the NBA are wider. The official dimensions are as follow. NBA key is 16’ wide by 19’ from baseline to free throw line. The 19’ include the 4’ backboard overhang. College and High school basketball key dimension is 12’ wide by 19’ baseline to free throw line. That also includes the 4’ backboard overhang.