Tennis Court Dimensions: How Big is a Tennis Court?


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The dimensions of the tennis court are very important for serious tennis players, especially those who lose a rally just by a quarter of an inch at the borderline. There are generally two types of tennis courts, an average court that is found in clubs and a competitive court where professional tennis matches are held. The size of the playing area however is the same and refers to the bounds within which the ball is in play. 

Dimensions of the Tennis Court

Tennis Court Dimensions
Image: Wikimedia/Businns

The dimensions of the tennis court for singles are about 78 feet by 27 feet and for the doubles match, it is about 78 feet by 36 feet. These dimensions are given by the International Tennis Federation. The tennis court is a rectangle is the shape, the lines at the ends of the court are called the baselines and the lines at its sides are called the sidelines.

The length of the service box is about 21 feet x 6.4 m and the width of the service box is about 13.5 feet by 4.1 m. The dimensions of the No Man’s land (The space between the service box and the baseline) is about 486 Sq.ft. The centerline is about 4” thickness and 0.1 m long.

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The Net of the Tennis Court

The tennis court is divided in the middle by a net, which is suspended by either a cord or a metal cable. The net passes over two net posts that lie at the height of 3 ½ feet. The net posts are located at least 3 feet outside the sideline for both the singles and the doubles match. When fully extended, the net fills the space between the two net posts. The center point on the net is 6 inches lower than its height at the end of the posts, owing to its weight. The center of the net is held down with the help of a strap and a band covers the top and the cord of the net. Both the strap and the band should be white.

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Right and Left Service Boxes

The service line divides the playing area into two halves and the central line creates a subdivision within that existing division. These service boxes each measure 13.5 feet in length and 21 feet in width. According to tennis rules, the first volley of the player on the left side of the court much hot the right box on the opponent’s side.

No Man’s Land

This stretch of land lies between the service line and the baseline. Its dimensions are 27 feet in length and 18 feet in width. It is the largest of the three boxes on either side of the net. Players can find it tough to hit the ball properly from this land.


The addition 9 feet of land in the doubles match, is not considered the part of the playing area in the singles match. Thus the idle 4.5 feet of land on either side of the tennis court is termed as the ‘alleys’. In a singles match, if the ball goes beyond the alley, it is considered an out.

Different Lines on the Tennis Court

The tennis court indeed looks great with its lines and patterns that run across the great in majestic white color. But these lines have a purpose and a name and of course, are made with precise measurements. Most of all, these lines should be exactly the mirror images on both the left and the right sides. The different court lines are made no wider than four inches and no thinner than two inches.

The baseline: The baseline is the farthest line from the net and the ball that falls beyond this line is considered out of boundary. Most players stay close to the baseline, to cover the entire court but are also careful not to go beyond it. The baseline is about 36 feet long, in singles matches only the middle 27 feet is used.

The Service line: The tennis court is divided into three distinct boxes and this is perhaps the most notable feature of the tennis court. This service line runs parallel to the net and down the middle of the half of the playing area. It extends from one doubles sideline to the other. The center service line runs perpendicular to the net and terminates at the point it intersects with the service line. 

Center mark: This is a small notch that points towards the net and arises from the middle of the baseline. Players position themselves on one side of the mark when they prepare to serve. The mark is only four inches long.

Sideline: There are two sidelines in the tennis court and each runs perpendicular from the net. These lines are 27 feet apart from each other for the singles match and the sidelines of the doubles match make use of the complete 36 feet. 

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FAQs with Tennis Courts

Are all the tennis courts of the same size?

Yes, all the tournament grade tennis courts are of the same size. But there can be differences in the areas around the marked court, and this can vary from one venue to another. Courts for juniors and recreational players can be slightly smaller.

How wide are the lines of the tennis court?

The white lines that are marked on the court have a standard thickness. The center service line in 2 inches wide and the other lines on the court should be 1-2 inches wide. The baseline can be up to 4 inches wide.

How much space does a tennis court occupy?

This again depends on whether you want to build a recreational or a professional tennis court. The minimum space requirement of a tennis court is about 595 square meters.


The court dimensions, and the precision at which its different lines are marked, makes us presume tennis as a complex and tough game. But these lines are a mark of fairness and consistency and the game as such is not tough with interest and practice.



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