What are the dimensions of a tennis court?

A regulation tennis court playing area is 78 feet long by 36 feet wide for doubles, and 78 feet by 27 feet for singles. The net is 3 feet 6 inches high at the posts and 3 feet high at the center. Each service line sits 21 feet from the net, and each baseline sits 39 feet from the net. These dimensions are set by the International Tennis Federation (ITF) Rules of Tennis and are identical for recreational and professional play.

How much space do you need to build a tennis court?

You need far more than the 78 by 36 foot playing area. The ITF recommends 120 feet by 60 feet for tournament play and 114 feet by 56 feet for club and recreational courts. The practical minimum for a private residential court is about 110 feet by 50 feet, which gives 16 feet of run-back behind each baseline and 7 feet outside each sideline. Below roughly 110 by 50 the court is playable but players will run out of the fence on deep returns.

Can you fit a tennis court in a backyard?

Yes, if you have roughly a quarter acre of usable, buildable, reasonably flat ground. A 110 by 50 foot court footprint is 5,500 square feet before fencing, setbacks and access. Most Connecticut residential zoning also imposes side and rear setbacks and impervious-surface coverage limits, so the buildable envelope is usually smaller than the lot line suggests. A site walk answers this faster than a tape measure.

How big is a half tennis court or a youth tennis court?

The USTA defines two shortened court sizes for youth play: a red-ball court at 36 feet by 18 feet for players aged 8 and under, and an orange-ball court at 60 feet by 21 feet singles or 60 feet by 27 feet doubles for players aged 10 and under. These are the only officially standardized shortened tennis courts. A "half court" is not a defined tennis dimension the way a basketball half-court is.

Are residential and professional tennis court dimensions different?

The playing area is identical. The difference is entirely in the surrounding space, the fencing and the amenities. A professional venue provides 120 by 60 feet or more of enclosed surface plus seating, officials' positions and broadcast clearance, while a residential court commonly runs 110 to 114 feet by 50 to 56 feet with 10 foot fencing. Anyone who tells you a backyard court needs a smaller playing area is describing a youth court, not a shortened regulation one.

What is the minimum fence height for a tennis court?

Ten feet is the standard fence height behind the baselines, which is what stops most deep returns from leaving the court. Sidelines are commonly 8 to 10 feet. Going below 10 feet at the ends is the most common regret on residential courts, because ball retrieval, not appearance, is what drives day-to-day satisfaction with a fence.

Which direction should a tennis court face?

North to south, with the long axis of the court running north-south so players are not serving into a rising or setting sun. This is the standard ITF and American Sports Builders Association recommendation for outdoor courts, and it is the one decision on a court that cannot be changed after the base is graded.

Tennis Court Dimensions: Standard Size, Backyard Minimums, and Space Needed

July 28, 2026

A regulation tennis court playing area is 78 feet long by 36 feet wide for doubles, and 78 by 27 feet for singles. Those numbers are set by the International Tennis Federation and are the same for a backyard court and for Wimbledon. The number that actually determines whether you can build one is different: the total fenced footprint, which the ITF recommends at 120 by 60 feet for tournament play and 114 by 56 feet for club and recreational courts, with about 110 by 50 feet as the practical floor for a private residential court.

The gap between those two figures is where most backyard tennis projects go wrong. A homeowner measures 78 by 36 feet, finds it fits, and discovers during design that the court needs almost twice that area.

Key takeaways

Measure	Figure
Playing area, doubles	78 ft x 36 ft
Playing area, singles	78 ft x 27 ft
ITF tournament footprint	120 ft x 60 ft
ITF club / recreational footprint	114 ft x 56 ft
Practical residential minimum	110 ft x 50 ft (5,500 sq ft)
Net height	3 ft 6 in at posts, 3 ft at center
Standard fence height	10 ft behind baselines

The playing area, line by line

Every line on a tennis court is fixed by the ITF Rules of Tennis. None of it scales down for residential use.

Element	Dimension
Overall length, baseline to baseline	78 ft
Width, doubles sidelines	36 ft
Width, singles sidelines	27 ft
Doubles alley, each side	4 ft 6 in
Baseline to net	39 ft
Service line to net	21 ft
Service box, each	21 ft x 13 ft 6 in
Center service line to sideline	13 ft 6 in
Net height at posts	3 ft 6 in
Net height at center	3 ft
Net post offset outside doubles sideline	3 ft

All court lines are between 1 and 2 inches wide except the baseline, which may be up to 4 inches.

Total footprint: the number that decides your project

The playing area is only the painted rectangle. The buildable court adds run-back behind each baseline and side run outside each sideline, because players do not stop at the line.

Standard	Run-back (each end)	Side run (each side)	Total footprint	Total area
ITF Grand Slam / Davis Cup	26 ft 3 in	14 ft 9 in	132 ft x 66 ft	8,712 sq ft
ITF tournament	21 ft	12 ft	120 ft x 60 ft	7,200 sq ft
ITF club / recreational	18 ft	10 ft	114 ft x 56 ft	6,384 sq ft
Practical residential minimum	16 ft	7 ft	110 ft x 50 ft	5,500 sq ft

Below 110 by 50 feet, stop and reconsider. Older guidance circulating online suggests figures like 90 by 45 feet for a “compact” residential court. That is not a compact court, it is a court with 6 feet behind each baseline. A player receiving a deep serve is into the fence before the ball has finished bouncing. If your usable area will not reach roughly 110 by 50, the honest options are a youth-size court, a shared multi-sport surface, or a pickleball court, which needs a 30 by 60 foot footprint rather than 5,500 square feet.

For context, 5,500 square feet is about an eighth of an acre of flat, buildable ground, before you account for fencing, access for equipment, zoning setbacks, and the impervious-coverage limits most Connecticut towns apply. See do you need a permit to build a sports court in Connecticut for what that review involves.

Residential versus professional: what actually differs

The playing area does not change. Everything around it does.

Aspect	Professional venue	Residential court
Playing area	78 ft x 36 ft	78 ft x 36 ft (identical)
Total footprint	120 ft x 60 ft or larger	110 to 114 ft x 50 to 56 ft
Fencing	Full enclosure plus spectator separation	10 ft chain link or vinyl-coated, 8 to 10 ft sides
Surfaces	Hard court, clay, or grass	Acrylic hard court, cushioned acrylic, occasionally synthetic turf
Lighting	Stadium-grade, 75 to 125 footcandles	LED pole-mounted, typically 4 to 8 poles
Amenities	Seating, officials’ chairs, broadcast positions	Benches, windscreen, occasionally a rebound wall

The one dimension homeowners most often try to trade away, side run, is the one that hurts soonest. Wide play in doubles happens on every point; the deep lob that tests run-back does not.

Youth and shortened courts

If the site genuinely will not hold a full court, the USTA defines two standardized shortened courts for junior development. These are real, officially specified sizes, not improvised ones.

Court	Playing area	Net height	Age group
Red ball	36 ft x 18 ft	2 ft 9 in	8 and under
Orange ball, singles	60 ft x 21 ft	3 ft at center	10 and under
Orange ball, doubles	60 ft x 27 ft	3 ft at center	10 and under
Green ball	78 ft x 36 ft (full court)	3 ft at center	11 and up

A 60 by 21 foot orange-ball court needs roughly a 78 by 36 foot footprint with run-off, which fits on lots that cannot take a full court. Note that a tennis “half court” is not a defined size. Unlike basketball, tennis has no officially recognized half-court dimension.

Orientation, slope and fencing

Three specifications are as fixed as the dimensions themselves:

Orientation: north-south long axis. Recommended by the ITF and the American Sports Builders Association so players are not serving into a low sun. This cannot be changed after the base is graded. The same logic, with tighter tolerances, applies to pickleball court orientation.
Slope: 1 percent in a single plane, commonly specified as 1 inch per 10 feet. Never crown a tennis court. Details and the surface systems that sit on top of it are in our base and surface systems guide, and drainage specifics in tennis court drainage solutions for homeowners.
Fence: 10 feet behind the baselines. Sidelines 8 to 10 feet. This is the most common residential regret when value-engineered down.

If you plan to light the court, pole positions have to be set before the base goes in, since footings sit outside the surface. See planning tennis court lighting for night play.

What this costs to build

Dimensions drive cost more than any other variable, because base and surfacing are priced by area. A court that grows from 110 by 50 to 120 by 60 adds 1,700 square feet, roughly 31 percent more surface. Full current pricing is in our tennis court cost guide for Connecticut and the broader backyard sports court cost guide.

Resurfacing intervals are a function of use and climate rather than size: acrylic surfaces on a residential court typically need recoating every 4 to 8 years in the Northeast.

Planning a court

Precision Sports CT builds tennis courts across Connecticut and Florida, from private residential courts to resort installations such as Four Seasons Anguilla. If a full court will not fit, we will say so at the site walk rather than after design, and a tennis-to-pickleball conversion or a multi-sport surface is often the better answer.

See our tennis court construction service, our Connecticut service area, or request a quote.

Sources: International Tennis Federation, Rules of Tennis, Appendix on court dimensions and recommended run-off; United States Tennis Association, youth court specifications; American Sports Builders Association, Tennis Courts: A Construction and Maintenance Manual.