Specification · Updated 2026
A squash court is
9.75 by 6.4 meters inside four walls
Squash court dimensions are 9.75 meters long by 6.4 meters wide (32 ft by 21 ft), with a front wall out line at 4.57 meters, a back wall out line at 2.13 meters, a service line at 1.78 meters, a tin 48 centimeters high (43 for professional play), and a minimum clear height of 5.64 meters. Squash court construction is an interior fit-out: a plastered or panel wall system, a sprung hardwood floor, a glass back wall and specialized lighting, inside a building that already has the height.
Squash is the only court on this site that is built entirely indoors and entirely by specialists.
Key figures
- Court
- 9.75 × 6.40 m (32 ft × 21 ft); singles, international standard
- Front wall out line
- 4.57 m (15 ft) above the floor
- Back wall out line
- 2.13 m (7 ft)
- Service line
- 1.78 m (5 ft 10 in) on the front wall
- Tin
- 0.48 m (19 in); 0.43 m (17 in) professional
- Short line
- 5.44 m (17 ft 10 in) from the front wall; service boxes 1.6 m square
- Clear height
- 5.64 m (18 ft 6 in) minimum over the court
- Squash court cost
- $80,000–160,000 per court fit-out, inside an existing building
Free to cite with attribution and a link. Full set at courtbaseline.com/reference.
Fig. 01
What are the squash court dimensions, line by line?
A 9.75 by 6.4 meter floor with a short line 5.44 meters from the front wall, a half court line splitting the back half, and two 1.6 meter service boxes in the back corners of the short line. On the front wall, three horizontal lines: the tin at 0.48 meters, the service line at 1.78 and the out line at 4.57. The out line slopes down the side walls to 2.13 meters at the back wall.
| Element | Metric | Imperial |
|---|---|---|
| Court length | 9.75 m | 32 ft |
| Court width | 6.40 m | 21 ft |
| Front wall out line height | 4.57 m | 15 ft |
| Back wall out line height | 2.13 m | 7 ft |
| Service line height, front wall | 1.78 m | 5 ft 10 in |
| Tin height | 0.48 m (0.43 pro) | 19 in (17 in) |
| Short line from front wall | 5.44 m | 17 ft 10 in |
| Service box | 1.60 × 1.60 m | 5 ft 3 in square |
| Line width | 50 mm | 2 in |
| Clear height, minimum | 5.64 m | 18 ft 6 in |
| Doubles court (North American hardball) | 13.72 × 7.62 m | 45 × 25 ft; 24 ft ceiling |
How does squash court construction work?
Inside a room at least 6.4 by 9.75 meters with 5.64 meters of clear height, a specialist installs three playing walls (a hard plaster system on blockwork, or prefabricated panel walls on a steel frame), a glass back wall with a door, a sprung maple floor, the tin, the lines, and lighting mounted above the out line. The building supplies the shell, the slab, HVAC and access; the squash court builders supply everything the ball touches.
Wall systems are the decision. Traditional hard plaster over block gives the truest bounce and the longest life but needs a mason who has done it before. Panel systems (fiber-reinforced composite or MDF-based panels on a frame) install faster, are consistent, and are what most new US courts use. The glass back wall is standard on any court built for viewing; all-glass show courts with four glass walls are a specialist product for events.
Floors are sprung maple strip, sanded and sealed but never varnished glossy, with the lines inlaid or painted. Lighting is 300 to 500 lux from fixtures above the out line, protected from ball strikes. HVAC matters: squash players sweat, the room is sealed on three sides, and a court without proper air handling is slippery within an hour.
How much does a squash court cost?
$80,000 to $160,000 per court for the fit-out inside an existing building with the height: walls, glass back, floor, lighting and lines. A new building to hold two courts with a gallery adds $400,000 to $900,000. Converting an old court to a current-spec panel system and glass back is $50,000 to $100,000.
| Line | Low | High | Notes |
|---|---|---|---|
| Wall system, three walls | $30,000 | $60,000 | Panel systems at the low end; hard plaster on block higher in labor |
| Glass back wall with door | $15,000 | $35,000 | 12 mm tempered, frameless fittings |
| Sprung maple floor | $12,000 | $25,000 | 62 m² plus margins |
| Tin, lines, door hardware | $3,000 | $6,000 | |
| Lighting | $5,000 | $12,000 | Above out line, impact-protected |
| HVAC connection and controls | $5,000 | $15,000 | Building system extended into the court |
| Design, installation labor, freight | $10,000 | $25,000 | Specialist crew, 2–4 weeks |
| Total per court | $80,000 | $160,000 | Building excluded |
Who are squash court builders?
A small number of specialist companies, most of them the wall-system manufacturers or their licensed installers, who design and fit courts nationally. A general contractor builds the room; the squash specialist builds the court inside it. Expect 3 to 6 months from order to play, driven by the wall panel lead time.
Vet them the way you would any court builder: courts you can visit, a named wall system, and a quote that states what the building must provide (floor flatness, height, power, HVAC capacity). Squash shares a building happily with padel, which needs 8 meters where squash needs 5.64; a hall tall enough for padel holds squash courts along its lower-roof edge. See indoor padel court and sports court builders.
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