What size is the court, and how high is the net for juniors?

Court (Rule 1.1): a 16 x 8 m rectangle of levelled sand, surrounded by a free zone at least 3 m wide on all sides, with at least 7 m of clear space overhead.

Net height (Rule 2.1): 2.43 m for men and 2.24 m for women, measured from the centre of the court. It must be the same height over both side lines and no more than 2 cm above the official height.

The rules allow lower nets for younger age groups: