Green clay is a natural clay, which is packed to make a subsurface, then covered with a topping. This is a highly popular style in the eastern and southern United States. Player injuries are less frequent on natural clay courts. Clay courts do require regular watering, compacting and brushing. These courts should be constructed in an area where the humidity is high so they can absorb extra moisture.
Drainage is also an important.
The latest subsurface watering systems help keep clay courts in playable shape at all times. A subsurface irrigated tennis court is watered from below the surface of the court rather than above. These are hardcourts covered with a vinyl cushioning material or a colored acrylic paint mixed with sand for texture, and can be much easier on the players. Cushioned hardcourts are the most popular surfaces for residential court construction and renovation. In locations where watering is impractical, the sand-filled synthetic grass or indoor carpet surfaces should be considered.