A tennis court is 23.77 m (78 ft) long. It is 8.23 m (27 ft) wide for singles and 10.97 m (36 ft) wide for doubles. The net is 0.914 m (3 ft) high at the centre and 1.07 m (3 ft 6 in) at the posts.
Official measurements
| Feature | Size |
|---|---|
| Court length | 23.77 m (78 ft) |
| Singles width | 8.23 m (27 ft) |
| Doubles width | 10.97 m (36 ft) |
| Service line from net | 6.40 m (21 ft) |
| Net height at centre | 0.914 m (3 ft) |
| Net height at posts | 1.07 m (3 ft 6 in) |
| Doubles alleys | 1.37 m (4.5 ft) each side |
| Centre mark | 10 cm long, 5 cm wide |
Run-off and junior courts
- Recommended space behind each baseline is at least 6.40 m (21 ft) for recreational play.
- Recommended side space is at least 3.66 m (12 ft).
- Orange-ball courts are 18 m (60 ft) long.
- Red-ball courts are about 11 to 12.8 m (36 to 42 ft) long.
- Surfaces include hard, clay, grass and carpet; dimensions stay the same.
Rules reference: ITF Rules of Tennis. National federations (such as the USTA) and tours may add their own regulations.
Frequently asked questions
Is a doubles court longer than a singles court?
No. Both are 23.77 m long; doubles is wider.
How high is a tennis net?
3 feet (0.914 m) at the centre and 3 feet 6 inches (1.07 m) at the posts.
How much space do I need to build a tennis court?
About 36 m by 18 m (120 ft by 60 ft) is a common recommended area including run-off.
