The game of Tennis is played on a rectangular flat surface which is called court and the court is usually of three types

Clay court
Clay courts are considered as "slow" court which means the balls bounces relatively high and more slowly, making is difficult for player to hit an unreturnable shot. On clay courts, line calls are easily reviewable because the ball leaves a visible mark.The French Open is played on Clay court

Grass court
Grass court as considered as "fast" court and it adds an additional variable, with bounces depending on how healthy the grass is and how recently it has been mowed. Of the major Grand Slam tournaments, the Wimbledon is played on grass court.

Hard court
The hardcourt encompasses many different surfaces, ranging from old-fashioned concrete courts to coated asphalt to wooden gymnasium surfaces to artificial grass similar to AstroTurf.Hardcourts are also considered as "fast" surfaces, where fast, low bounces keep rallies short, and powerful, hard-serving players have an advantage.
Australian Open and U.S. Open use hardcourts - though both originally used grass courts

Length : 78 feet (23.77 m)

Width : 27 feet (8.23 m)

Length : 78 feet (23.77 m)

Width : 36 feet (10.97 m)

The net is 3 feet 6 inches (1.07 m) high at the posts, and 3 feet (914 mm) high in the center.

Additional clear space around the court is required in order for players to reach overrun balls. A net is stretched across the full width of the court, parallel with the baselines, dividing it into two equal ends.

Wimbeldon

US Open

Australian Open

French Open