The width of all lines on the tennis court shall be a minimum of 2.5cm and a maximum of 5cm. The baseline may be 10cm. The centre service lines and centre mark shall be 5cm.
Service lines are two lines between the singles sidelines, 6.40m from each side of the net, parallel with the net.
On each side of the net, the area between the service line and the net are divided into two equal parts called the service courts. The line dividing the service courts is the centre service line and is drawn parallel with the singles sidelines and halfway between them.
A north-south orientation is preferred to minimise sun interference amongst players.
As a guide, the recommended minimum distances should be the space behind each baseline 5.48m and the space at the sides 3.05m
Outdoor tennis courts have a built-in slope to facilitate drainage, the design gradient depends on how the stormwater is to be drained. The design gradient of the court is generally between 1% and ½%, the degree of the gradient is influenced by whether the tennis court’s base is permeable (vertical flow of water) or impermeable (surface run-off).