Official ITF Tennis Court Dimensions 2026: Singles & Doubles Line Geometry
Standard court layout specifications certified under ITF Rule 1 (The Court) for Grand Slam, ATP Tour, and WTA Tour competitions.
Verified against: ITF Rules of Tennis: Rule 1LAST VERIFIED: 2026-08-01
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TECHNICAL BLUEPRINT: COURT & NET SPECIFICATION
Top-down orthographic CAD projection • Official ITF Rule 1 Scale
Full Doubles Court
23.77 m × 10.97 m
ITF Rules of Tennis, Rule 1: Outer doubles boundary
Tennis Official Metric & Imperial Calibration Matrix
| Field Parameter / Boundary | Metric Specification | Imperial Equivalent |
|---|---|---|
| Court Total Length (Baselines) | 23.77 m | 78.0 ft |
| Singles Court Width (Sidelines) | 8.23 m | 27.0 ft |
| Doubles Court Width (Alleyways) | 10.97 m | 36.0 ft |
| Doubles Alley Width (Each side) | 1.37 m | 4.5 ft |
| Service Line Distance from Net | 6.40 m | 21.0 ft |
| Net Height at Center (Strap) | 0.914 m | 3.0 ft (36.0 in) |
| Net Height at Posts | 1.07 m | 3.5 ft (42.0 in) |
| Net Post Distance outside Singles Line (Singles Sticks) | 0.914 m | 3.0 ft |
| Baseline Line Width | Up to 10.0 cm | Up to 4.0 in |
| Run-off Space Behind Baseline (Grand Slam Minimum) | ≥ 6.40 m | ≥ 21.0 ft |
Tennis Dimensions FAQs
Frequently Asked Questions: Tennis Ground & Pitch Dimensions
Under ITF Rule 1, a tennis court is 78 feet (23.77m) long. For singles matches, the width is 27 feet (8.23m); for doubles matches including the alleys, the width is 36 feet (10.97m).
Line Thickness Rule
All boundary markings must be of equal width and are legally part of the area they enclose. A ball on the line is legally in play.
Statutory Governing Authority
Dimensional tolerances are codified under the official rulebook of the governing authority (Tennis) and applied at international championship level.