Tennis Court Dimensions: Official Size, Interactive Diagram & Layout Planner
A regulation tennis court is 78 feet long and 36 feet wide for doubles (27 feet for singles). Explore service boxes, alleys, backcourt, and net specs with our interactive diagram. Toggle between feet and meters.
Click on any zone in the diagram to see its dimensions and details
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A regulation tennis court measures 78 feet long (23.77m) for both singles and doubles play. The width differs by format: 27 feet (8.23m) for singles and 36 feet (10.97m) for doubles, with 4.5-foot alleys running the full length of the court on each side for doubles play.
The total playing surface area is 2,808 square feet for a doubles court and 2,106 square feet for singles. The standard total court pad — including runback and side space — measures 60 feet wide by 120 feet long (7,200 square feet), which is the dimension used when constructing new courts or planning facility layouts.
The net stretches across the full width of the court (including doubles alleys for doubles play) at a height of 3 feet 6 inches (1.07m) at the posts and 3 feet (0.914m) at the center. A center strap holds the net to the correct center height. Net posts are set 3 feet outside the doubles sideline on each side.
All measurements conform to the ITF Rules of Tennis, which govern court specifications worldwide for recreational, collegiate, and professional play.
Tennis Court Zones Explained
Service Boxes
Each side of the court has two service boxes: the deuce box (right) and the ad box (left), divided by the center service line. Each service box measures 13.5 feet wide by 21 feet deep (283.5 square feet). Servers alternate between the deuce and ad sides after each point, and the serve must land inside the diagonally opposite service box.
Doubles Alleys
The doubles alleys are 4.5-foot-wide strips running along each sideline for the full 78-foot length of the court. They are only in play during doubles matches. In singles, the narrower sidelines (27 feet apart) define the boundary.
Backcourt (No Man’s Land)
The area between the baseline and the service line on each side is 18 feet deep. Strategically known as “no man’s land,” this zone leaves players vulnerable to shots at their feet — which is why competitive players avoid lingering there, preferring to hold the baseline or advance to the net.
Net Specifications
The net is suspended from posts set 3 feet outside each doubles sideline, making the total post-to-post distance 42 feet. Center height is 3 feet; post height is 3 feet 6 inches. The net band at the top must be between 2 and 2.5 inches wide and is typically white.
Singles vs Doubles Court Differences
The court length is identical for both formats at 78 feet. The difference is width: 27 feet for singles versus 36 feet for doubles. The doubles alleys (4.5 feet on each side) are the only area that changes between formats. For service, the boxes and center line remain the same regardless of whether singles or doubles is being played.
Most facilities paint a single set of lines that accommodates both formats. The inner sidelines mark the singles boundary, and the outer sidelines mark the doubles boundary. This is standard at public parks, private clubs, and tournament venues alike.
Standard Tennis Court Pad Size
When building a new court or evaluating existing space, the critical number is the total pad size: 60 feet wide by 120 feet long. This provides the playing surface plus adequate space behind baselines (approximately 21 feet) and beside sidelines (approximately 12 feet) for safe play and ball retrieval. For tournament-level courts, the ITF recommends even more runback — up to 27 feet behind each baseline.
This 60 × 120 foot pad is also the reference point for pickleball conversions. A single tennis pad accommodates two to four pickleball courts depending on spacing preferences. See our conversion calculator for exact layouts.