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NBA
Basketball Court Layout Diagram
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Pro (NBA), College,
High School and Junior High School courts
differ on overall size an layout, but the
interior markings for the “Foul Line”, “The
Key” and “The Backboard and
Rim” are the same. The NBA court
has a unique 3 point line (arc). College
and High School Courts share the same 3
point line measurements.
Regulation
Sizes-Official Measurements:
Court Size Overall:
- NBA and College – 94
feet long and 50 feet wide
The Foul Line:
For all courts including
the NBA, the “foul
line” distance is 15 feet from the
foul line to the front of the backboard
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The Key:
Standard for all basketball
courts, “the key” (sometimes called “the
lane”) 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):
NBA – the
3 point arc is 22 feet to the center of the
rim on the sides with a straight line extending
out 16 feet 9 inches from the baseline. Past
those points the line extends out 23 feet 9
inches from the center of the rim.
The Backboard and Rim:
The regulation distance from
the ground to the top of the rim is 10 feet for
all levels of play. Regulation backboards are
6 feet wide (72 inches) by 42 inches tall. All
basketball rims (hoops) are 18 inches in diameter.
The inner square on the backboard is 24 inches
wide by 18 inches tall.
All line markings on the floor
are 2 inches wide and can vary in color.
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