Tennis court size and line marking
A tennis court is 23.77 m (77′ 11⅞″) by 10.97 m (35′ 11⅞″); with its run-off it needs 34.73 m (113′ 11⅜″) by 17.07 m (56′ 0″).
- Playing area23.77 m × 10.97 m
- With run-off34.73 m × 17.07 m
- Surface593 m²
- Played onOutdoor hard courts, usually acrylic.
Tennis court drawing, every line measured
Doubles court with singles lines. The run-off shown is the ITF minimum for club and recreational courts.
- Playing area
- 23.77 m × 10.97 m
- With run-off
- 34.73 m × 17.07 m (5.48 m behind each end line, 3.05 m at each side)
- Surface to build
- 593 m², court and run-off together
- Square check
- Both diagonals of the court must read 26.179 m. If they differ, the court is out of square.
- Played on
- Outdoor hard courts, usually acrylic.
- Lines
- 5 cm for the centre service line and centre mark; 2.5 to 5 cm for the others; the baseline may be up to 10 cm.
- Net and posts
- 0.914 m at the centre, 1.07 m at the posts. Posts stand 0.914 m outside the doubles sidelines.
- Run-off for tournaments
- 6.40 m behind each baseline and 3.66 m at each side, 36.57 m × 18.29 m overall.
- Centre mark
- 0.10 m long, inside each baseline.
- Net posts
- No more than 15 cm across; the top no more than 2.5 cm above the net cord. Singles sticks hold the net at 1.07 m, 0.914 m outside the singles lines.
- Fence
- Behind the court 3 m or 3.60 m high; at the sides 1.20 m or the same as behind.
- Lighting
- At least 350 lux for competition play.
Fence around the court
- Fence run
- 104 m
- Mesh area
- 379 m²
Tennis Australia gives 3.0 or 3.6 m (about 10 or 12 ft) behind the baselines, and 1.2 m or the same height at the sides. The run is measured round the edge of the run-off; gates are left out.
How to mark a tennis court
- Fix one end line. Stretch a string line 10.97 m long between two pins.
- Square the corner with 3-4-5. 3 m along the end line, 4 m out along the side; when the gap reads exactly 5 m, the corner is square. Run the side line out to 23.77 m.
- Check both diagonals. Each must read 26.179 m. If they differ, move the corners before marking any line.
- Mark the inner lines.
- Singles sideline: 1.37 m inside the doubles sideline.
- Service line: 6.40 m from the net.
- Centre service line: 12.80 m long, service line to service line.
- Mark to the right edge. Measured to the outside of the boundary line. The line is part of the court, so a ball on the line is in. Mask both sides of every line with tape before painting.
Marking it yourself? Send a photo of your set-out on WhatsApp and we will help you check it before the paint goes on.
Questions people ask
What is the size of a tennis court in feet and metres?
A tennis court is 23.77 m (77′ 11⅞″) long and 10.97 m (35′ 11⅞″) wide.
How much space is needed for a tennis court?
With the run-off around it, the surface is 34.73 m (113′ 11⅜″) by 17.07 m (56′ 0″): about 593 m² (6,381 sq ft).
What are the net and post measurements for tennis?
0.914 m at the centre, 1.07 m at the posts. Posts stand 0.914 m outside the doubles sidelines.
How do I check that a tennis court is marked square?
Measure both diagonals from corner to corner. On a tennis court each should read 26.179 m (85′ 10⅝″); if the two differ, the corners need moving.
Which edge of the line is the tennis court measured to?
Measured to the outside of the boundary line. The line is part of the court, so a ball on the line is in.
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Want this court built?
Send the location and a few photos of the site. We will reply with the right Acrlay court for it and a written quote.