0.914 vs 1.07 m
A tennis net is lower at the centre than at its supports
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Photo: Tiia Monto · CC BY-SA 3.0
The short answer
The ITF specifies a net height of 0.914 metres at the centre and support height of 1.07 metres. A centre strap holds the middle down.
Why it's true
A regulation tennis net is not meant to form a perfectly horizontal barrier. Its centre is three feet high, while its posts support the cable at three feet six inches. The metric figures in the ITF rulebook are 0.914 metres and 1.07 metres, so the middle is visibly lower than the supported ends.
That shape is prescribed rather than evidence that a groundskeeper forgot to tighten the net. Rule 1 requires a strap at the centre and specifies the supporting arrangement. The height difference creates one of the court’s most useful pieces of geometry: the obstacle a ball crosses depends partly on where it passes over the net.
By the numbers
0.914 m
Net height at the centre
1.07 m
Height at prescribed supports
0.156 m
Difference between published metric heights
How we know
The ITF Rules of Tennis puts the net requirements in Rule 1, The Court. The net hangs from a cord or metal cable, fills the space between the posts, and must have mesh small enough to prevent a ball passing through it. Its centre is held down by a strap, and the top cable is covered by a band.
The same rule distinguishes singles and doubles support arrangements. For doubles, the post centres stand three feet outside the doubles court on each side. For singles played with a doubles net, singles sticks support the net at the prescribed height outside the singles sidelines. Thus “height at the sides” needs a reference to the correct supports, not merely the painted singles lines.
Worth remembering
- A regulation net deliberately dips at its centre.
- The centre strap and singles sticks perform different functions.
- A lower crossing point offers margin but does not guarantee a good shot.
In context
The court combines a rectangular landing target with a barrier of varying height. That pairing creates tactical choices without changing the scoring system. Players can seek a safer trajectory, a sharper angle, or a more surprising route, but every choice still has to produce a legal return.
A closer look
A geometric advantage, not a magic route
A shot travelling across the middle of the net encounters a lower obstacle than one crossing nearer a support. This gives a player a little more vertical room for a chosen trajectory. It helps explain the appeal of central and crosscourt rally routes, especially when combined with the longer diagonal landing path available across the court.
However, not every crosscourt stroke crosses the exact centre, and not every down-the-line stroke passes next to a post. The player’s contact position and chosen target determine the crossing point. Net height alone cannot predict whether a ball will clear safely. Spin, speed, launch angle, and intended bounce position remain essential parts of the shot.
The strap and sticks have different jobs
The centre strap fixes the lowest prescribed point. Singles sticks, when required, create appropriate support positions for a singles match using a wider doubles net. They do not pull the middle upward to the same height as the ends. Confusing these components can lead to a net that looks tidy but fails the actual setup requirements.
A practical check starts by identifying the format and the support configuration, then measuring the centre and the relevant support heights from the court surface. Measuring the hanging bottom edge would tell you something different. A net can also have correct height but unsuitable mesh or a damaged top band, because compliance involves more than one dimension.
The height figures should not be used to assume a perfectly straight slope from the middle to each support. The rule specifies the required setup and key heights, not a simple classroom triangle for every point along the top band. Consequently, calculating an exact clearance at an arbitrary distance from the centre needs more information than subtracting the two headline numbers. For players, the dependable practical lesson is more modest: the middle is lower, the relevant supports are higher, and a correctly installed net must satisfy the whole arrangement rather than a guessed visual profile.
Related facts
Compare another rule that fixes the size of a playing surface. A regulation tennis court is 23.77 metres long.
See how a format change alters the legal landing area. Doubles tennis uses a wider court than singles.
Compare the specified target height in a different sport. A regulation basketball ring sits 3.05 metres above the floor.
Examine the construction requirements for a different flying object. A regulation feathered badminton shuttle has sixteen feathers.
Key terms
- Centre strap
- Strap holding the net down at its centre.
- Net support height
- Specified net height at the supports: 1.07 metres.
People also ask
Is the dip accidental?
No. The lower centre is explicitly specified in the rulebook, and a strap holds it down there. Ordinary wear can cause additional problems, but the basic centre-to-support difference belongs to the intended design. Tightening the cable until the top is level would not be the correct goal.
How much lower is the centre?
Subtracting the published metric figures gives 0.156 metres, or 15.6 centimetres. The imperial specifications differ by six inches. These are paired rounded metric and imperial descriptions, so avoid treating their converted decimal difference as a separate precision requirement.
Where do you measure net height?
Measure from the playing surface to the top at the specified location. The centre has its own value, and the support arrangements have theirs. The bottom of the mesh, the top of a protruding post cap, or the surrounding fence is not the relevant reference.
Are singles sticks always needed?
They are specified when a singles match uses a doubles net. A net supported by correctly positioned singles posts is a different arrangement. The purpose is to establish the proper singles support geometry, not to introduce an extra obstacle into the middle of the court.
Can a shot go around the post?
The ITF good-return provisions allow certain balls returned outside the net posts, including paths below the level of the net top. Whether a particular return is good also depends on where it lands and whether it contacts an object that the rules treat as disqualifying. Clearing the top is not the only possible legal route.
