The Court

The squash court is a playing surface surrounded by four walls. The court surface contains a front line separating the front and back of the court and a half court line, separating the left and right hand sides of the back portion of the court, creating three 'boxes' - the front half, the back left quarter and the back right quarter. Both the back two boxes contain smaller service boxes. All of the floor-markings on a squash court are only relevant during serves. There are four walls to a squash court. The front wall, on which three parallel lines are marked, has the largest playing surface, whilst the back wall, which typically contains the entrance to the court, has the smallest. The out line runs along the top of the front wall, descending along the side walls to the back wall. There are no other markings on the side or back walls. Shots struck above the out line, on any wall, are out. The bottom line of the front wall marks the top of the 'tin', a half meter-high metal area which if struck means that the ball is out. The middle line of the front wall is the service line and is only relevant during serves.

The Ball

Squash balls are 39.5 mm and 40.5 mm in diameter, and weigh between 23 and 25 grams. They are made with two pieces of rubber compound, glued together to form a hollow sphere and buffed to a matte finish. Different balls are provided for varying temperature and atmospheric conditions and standards of play: more experienced players use slow balls that are smaller and have less bounce than those used by less experienced players (slower balls tend to 'die' in court corners, rather than 'standing up' to allow easier shots). Depending on its specific rubber composition, a squash ball has the property that it bounces more at higher temperatures. Small coloured dots on the ball indicate its dynamic level (bounciness), and thus the standard of play for which it is suited. The recognised speed colours indicating the degree of dynamism are: