Court: 18 m × 9 m rectangular, divided by a center line into two 9 m × 9 m halves; Attack line: 3 m from the center line on each side, defining the front zone vs back zone; Service zone: behind the end line, full court width
Why people argue about this
People often assume that the 9-meter width is measured from side-to-side at the net height, leading to arguments about where exactly the center line should be placed on the court. The confusion arises because they overlook the official definition stating it's a measurement across the entire playing area, not just from the net down.