Change of surface

[bob jenkins]

1.1.1 Playing Surface
The court and a free zone area at least 2 meters (6 feet, 6 inches) adjacent to
and surrounding the court must be flat, smooth and free of obstructions, other
than net supports� The free zone may include playing area that is even with or
not more than approximately 1�25 centimeters (½ inch) lower than the primary
surface� For facilities constructed after 2016, a free zone of 3 meters (9 feet, 10
inches) is required�