Can You Step on the Red Line When Serving in Squash?
Guides
Can your foot touch the red service box line in squash? Find out what counts as a foot fault and how to serve legally.
The quick answer
No, not with the foot you are using to satisfy the service-box rule. At the moment you strike the ball, at least one foot must be in contact with the floor inside the service box, with no part of that foot touching the box boundary. A squash serving foot fault occurs if neither foot meets that requirement at contact.
Does your whole body have to stay in the box?
No. The rule concerns one qualifying foot at the moment of contact. Your other foot does not have to be inside the box, and your racket and body may extend beyond it. This is why you can see players leaning or stepping forward while serving. What matters is the exact position of the foot that keeps your serve legal when the racket hits the ball.
What if your foot is over the line but not touching it?
The service rule specifies that the qualifying foot must be on the floor inside the box without touching its boundary. The rule does not separately define an overhanging shoe. Keep the whole qualifying foot clearly inside the box rather than relying on a borderline position. In a fast club match, leaving clear space between your shoe and the line is the easiest way to avoid an argument.
Other serving lines that matter
The serve must strike the front wall above the service line, not on it. If the ball is not volleyed, its first bounce must be in the opposite back quarter, not on the short line or half-court line. Painted lines are not a free pass on a serve.
A simple practice drill
Place your qualifying foot comfortably in the centre of the service box and practise ten serves without moving it onto a line. Once you can consistently serve deep, add your normal movement. Ask a friend to watch your feet rather than your shot.
Frequently asked questions
Is touching the service box line a fault?
Yes, if it is the foot being used to meet the one-foot-inside-the-box requirement at contact.
Can my other foot be outside the service box?
Yes. One legally positioned foot is enough at the moment of contact.
Want to vary your serve? Try an overhead squash serve while keeping one foot legally positioned. Our squash rules for beginners explains the rest of the rally. For a friendly club challenge, explore personalised Dunlop Competition squash balls.
Rules checked against World Squash Singles Rules, September 2025, section 5.7: official squash rules.
