A racquetball court is a rectangular enclosed area that can be indoor or outdoor. The standard length of the racquetball court is 40ft long, 20 ft wide and 20 ft long with back walls at least 12 ft high.
Different types of court markings are there in racquetball courts which are as follows −
Short Line − The short line is the middle line between the front and back walls.
Service Line − The Service line is 5 ft in front of short line and lies between the short line and front wall.
Service Zone − Service zone is a rectangular 5' × 20' area enclosed between the short line, service line, and the side walls.
Receiving Line − Receiving line is the line that is drawn 5 ft behind the short line and is placed parallel to the back wall and between the short line and back wall.
Safety Zone − Safety zone is a rectangular 5' × 20' area enclosed between the short line, receiving line, and the two side walls.
Drive Serve Lines − These are a set of lines of 3 ft drawn parallel to the side walls and within the service zone.
Doubles Service Lines − These are a set of lines of 18 inch drawn parallel to the side walls and within the service area.
In case of doubles matches, the non-serving doubles partner stands between the area enclosed by the side wall and double service lines within the service zone, which is also called the doubles box. A server must not enter in to the area enclosed between the drive serve line and side walls within the service zone, during hitting a drive service between him and the nearest side wall.
It is very much similar to that of squash court. The only difference is that the ceiling is also considered as a valid surface whereas in case of squash only four walls surrounding the room including the ground were considered as valid surface areas for the sport.