The Lines of a Tennis Court
Baseline: Doubles 36 feet / Singles 27 feet
The baseline runs parallel to the net and defines the farthest boundary, or back of the court, on each side. It’s where you will hit most of your groundstrokes (forehands and backhands) and the approximate location you’ll return serves. Any shots that land beyond this line are out of bounds.
Center Mark: 4 inches long
The center mark divides the baseline in half and runs perpendicular to the net. It defines the point you cannot cross when hitting a serve in either the deuce and ad court. It’s a great point of reference, as you’ll find coaches telling you to always return to the center of the baseline after you hit a groundstroke.
Service Line: 27 feet wide
The service line runs parallel to the net and marks the halfway point between the net and the baseline. It also marks the end of the service boxes. However, unlike the baseline, it extends only to the singles sidelines. Any serve that lands beyond this line in the court is out.
Center Service Line: 42 feet long (21 feet on each side of the court)
The center service line runs perpendicular to the net and meets the service line to create two equal-sized service boxes.
Singles Sidelines: 39 feet long
The singles sidelines also run perpendicular to the net and define the side boundaries of the court for singles matches.
Doubles Sidelines: 39 feet long
A few feet outside of the singles sidelines are the doubles sidelines. These sidelines run perpendicular to the net and define the side boundaries of the court for doubles matches.
How much space/area should be left after base line/Net post as per international guidelines ( ft L* ft W)
Hey Narendra!
Thanks so much for your question.
International Competition
For international competition it’s recommended that the space or distance between the baseline and the backstop should be 21 feet. The distance between the sidelines and the sidestops is recommended to be 12 feet. If you’re measuring from the net post this distance should be 9 feet because the distance from the sideline to the net post should be 3 feet.
Recreational Play
The recommended measurements for recreational play are slightly shorter. 18 feet between the baseline and the backstop and 10 feet from the sideline and sidestops or 7 feet from the net post.
Hopefully this helps :) Please let me know if you have any other questions.
PS – here’s a quick bonus. If the court is indoors the minimum recommended height of the ceiling should be 30 feet.
All the best,
Jon
Sir great guidance this sure will help a lot of people…….
Thank you, Rao!
Thank you for the useful info on your site. Can you tell me what the stndard length of a net should be. If the posts are 3 feet outside of the doubles court lines how much is allowed for the static hook and winder spindle on either side.
Hey John,
Great question! Nets made for singles and doubles play are 42 feet in length. The width of a court including doubles alleys is 36 feet and the net posts are required to be placed 3 feet outside the doubles sideline. If we take the quick total (36+3+3) that gives us our 42 feet, which the net needs to cover.
Recognizing this the net should extend right to the edge of each net post. The cable that passes through the band at the top of the net will be a few feet longer than 42 feet so that there is ample cable to wind the net so that it’s taut – this extra length can vary slightly from manufacturer.
Hopefully this helps!
All the best,
Jon
I like tennis
I really appreciate your info on tennis
Hi Zanna! Me too ;) Thanks for stopping by and for the positive feedback.
its an amazing site 4 sure….I have a whole team n we train each an every day….. we’ve Neva met with a strong team….. we need a challenger
Are outdoor courts supposed to face a certain direction, to avoid sun or wind direction?
Hi Monte,
I love this question! It’s not super straightforward, but let’s dive into some of the details.
Generally, courts should have a north to south orientation. The sun rises in the east and sets in the west, so this orientation keeps the sun out of the player’s eyes. However, there are two other key factors to take into consideration:
– Time of day courts get the most use
– Seasons when courts are used (spring, summer, winter, fall)
– Latitude of the court’s location
The direction of the sun changes throughout the day and year. It also varies for locations further south or north of the equator. The key is to consider these three factors and then determine the best direction to optimize play by keeping the sun out of players eyes.
As for wind, I wouldn’t worry about it :) It’s best to focus on the direction of the sun first and foremost.
Hopefully, this helps point you in the right direction.
Feel free to share more details, and we can figure it out together.
All the best,
Jon
Great resource. I was looking for tips on how to set up the singles sticks to ensure the net is 6″ higher at its edges than in the middle. Is there an official way? How do you do it?
Hi Bryan,
Thanks for the note! Yes, there’s definitely an official way to make use of singles sticks.
First off, you’ll want to make sure your net is well tensioned. Then check to make sure the height at the middle of the net is 3 feet and adjust the strap if necessary.
Once you’ve done that, you can place the singles sticks on either side of the net 3 feet from the singles sideline, and that’s it. For reference, singles sticks are the same height as the net posts or 3.5 feet tall, and if you notice, the net posts are placed exactly 3 feet outside of the doubles sidelines, which I find is a good point of reference to help remember.
Hopefully, that helps, let me know if I can help clarify anything.
All the best,
Jon
this is good works
Thanks, Tim!