Court Specs Visualizer 📐

The Summary. Official dimensions are the “law” of the game. Every millimetre in the spec was chosen for a specific mechanical reason.

For a court to be regulation-ready, every millimetre matters. The four sports Singapore plays most have very different geometries, and the differences are not arbitrary — each dimension was chosen to balance rally length, shot variety, and human physiology.

Badminton (BWF Laws of Badminton, Law 1)

Total court is 13.40 m long. Width changes with format: 6.10 m for doubles, 5.18 m for singles. That 92 cm of doubles alley on each side isn’t decoration — it exists because doubles players cover the court in a pair and need the extra sideline space for the “defensive lift” that gets sent to the corner. The short service line sits 1.98 m from the net, and the doubles long-service line is 0.76 m inside the back boundary, creating that iconic thin back band that catches so many rec-level players out.

Tennis (ITF Rules of Tennis, Appendix I)

Total court is 23.77 m long. Width: 8.23 m singles or 10.97 m doubles. Each doubles alley is 1.37 m wide. The service box is 6.40 m deep and 4.115 m wide — deliberately smaller than the full court so serves have to be placed with precision, not just power. Our tool lets you overlay singles and doubles so you can see the alley difference in scale.

Pickleball (USA Pickleball Rulebook, §2)

Total court is 13.41 m × 6.10 m — essentially the same footprint as a badminton doubles court, which is why so many Singapore condos are converting badminton lines to pickleball with a single tape overlay. The unique feature is the Non-Volley Zone (“the Kitchen”): a 2.13 m strip in front of the net where volleys are illegal. It exists to prevent the game becoming pure net-blitz.

Futsal (FIFA Futsal Laws of the Game 2023/24, Law 1)

Total pitch is flexible: 25–42 m long by 15–25 m wide, with the international standard set at 40 × 20 m. Most Singapore school and ActiveSG venues run the 40 × 20 m size. The much smaller area (relative to full 11-a-side football) is what drives futsal’s explosive close-control style.

Knowing the official specs helps you settle the eternal “was that in or out?” debate — even on a multi-purpose hall where the line you’re arguing about might actually belong to a different sport entirely.

The Summary. Walk into any ActiveSG multi-purpose hall and you’ll see a spider-web of overlapping lines. Learn the colour code, or lose 15 minutes of court time arguing about which line is the baseline.

The typical ActiveSG hall — Bedok, Jurong East, Toa Payoh, Woodlands — is built to host four to six sports on the same wooden or synthetic floor. To fit them all, painters overlay coloured lines. The colour convention isn’t federally mandated in Singapore but has settled into a fairly consistent standard across SportSG venues:

• Green or White · Badminton. The most common line colour, because badminton is the most-played hall sport in Singapore. There are usually 3 badminton courts side-by-side across the hall width.
• Blue · Basketball or Netball. Blue lines mark the free-throw semicircle, the three-point arc, and (in netball) the goal-shooting circles.
• Red or Yellow · Futsal or Volleyball. Bright warm colours mark the futsal touchline and the volleyball attack line.
• Purple or Orange · Pickleball (newer halls). Since 2023 many halls have added pickleball overlays in a distinct colour so they don’t collide with the badminton lines.

The Perimeter Walk (30 seconds well spent)

Before your first rally, do a slow walk of the perimeter of your court. Trace each line with your eyes and identify: (1) your baseline, (2) your sidelines, (3) your service lines. The #1 heartland error is confusing the badminton doubles long-service line (the inner one, 76 cm from the back wall) with the back boundary. Miss this and half your first-service shuttles will look “in” but actually be short.

For badminton specifically, pay attention to the two service lines: the short service line is inside the court, and the doubles long service line is not the back wall. Singles use the outer back boundary; doubles use the inner one. Read the lines, don’t argue about them.

The Summary. It’s not just a barrier. The net height dictates the entire geometry of your shot and the shape of every rally.

Why does a tennis net dip in the middle? Per ITF Rule 1, the net must be 1.07 m at the posts but exactly 0.914 m at the centre, held down by a centre strap. This dip is not aesthetic — it’s a deliberate power channel. The lower centre encourages cross-court patterns (which fly over the low centre) and discourages down-the-line shots (which must clear a higher net). Every rally you’ve ever seen at the SG Open plays through this bias.

In Badminton (BWF Law 1.6), the net is 1.55 m at the posts and can dip to 1.524 m at the centre — a much smaller 26 mm sag because shuttles are lighter and don’t need the same trajectory bias. In Pickleball, the net is 0.914 m at the posts and 0.864 m at the centre (34 inches), a middle-ground designed to keep the game close-quarters and volley-heavy without becoming pure tennis.

Net Droop: The Public-Court Curse

If your neighbourhood net is sagging more than the spec, you’re playing a different game entirely. A badminton net that sags to 1.45 m at the centre (common at older CC halls) makes every net-shot legal that should have been a fault, and every low-serve becomes gettable. Bring a measuring tape to important games. It sounds obsessive, but the pros do it too.

The badminton service law adds another wrinkle. The shuttle must be struck below 1.15 m from the court surface (BWF Law 9.1.6, revised 2018). Combine that with a proper 1.524 m centre net and you have the geometric reason short serves rise-and-drop the way they do.

The Summary. In a land-scarce city, the space around the court is just as important as the space inside it. Ignore the run-off and you will meet a pillar with your shoulder.

Most hobbyists forget the “run-off”: the safe clear space around the playing rectangle. It’s not part of the court dimensions the ITF or BWF publish, but it’s embedded in every professional facility guideline.

• Tennis (ITF facility guide). Minimum 6.40 m behind each baseline and 3.66 m to each side. Recreational facilities compress this to 3–4 m behind the baseline. HDB and small CC courts often only have 1.5–2 m.
• Badminton (BWF facility guide). Minimum 2 m clear behind each baseline and 1 m between adjacent courts. This is why 3-court halls have that noticeable narrow gap between courts.
• Pickleball (USAPA). Minimum 3 m behind each baseline. In tight condo footprints this is frequently violated.
• Sport Singapore Design Guidelines recommend that community facilities target the professional buffers wherever floor plan permits, but recognise the reality of dense HDB and MCST redevelopments.

The HDB Void-Deck Reality

If you’re playing on a void-deck court with less than 1.5 m of run-off behind the baseline, you must adjust your positioning. Our Smart Kaki Positioner covers “Void Deck Geometry” in detail — the short version is: stand more aggressively (0 m stance, on the baseline) so you cut off angles before they force you deep into pillar territory. The Nadal 3.2 m stance is a luxury for full-facility courts.

Injury data collected by ITF from recreational players consistently shows wall or fence contact accounts for around 5% of court injuries, most of which are entirely preventable by respecting the run-off.

The Summary. Singapore’s climate turns every court surface into a different beast. From CC parquet to outdoor acrylic, humidity and heat shape the game more than most players realise.

Parquet (CC halls, most ActiveSG venues)

Wooden parquet has a high coefficient of friction (COF around 0.5–0.7 when dry) — excellent grip for badminton lunges and pickleball pivots. But parquet also absorbs sweat. Once a few drops hit the floor, the local COF can drop below 0.2, turning that patch into a skating rink. This is the “soggy shirt hazard”: it’s not the sweat on you, it’s the sweat under you. Wipe the floor between long rallies.

Acrylic hard court (outdoor tennis, some pickleball)

Acrylic is engineered for consistent bounce and grip — but Singapore’s tropical sun turns it into a heat sink. Surface temperatures can reach 45 °C by 2 PM on an outdoor Kallang or Farrer Park court. At that temperature, the rubber compound in your shoe soles begins to soften, which subtly changes your effective grip. It’s also why serious outdoor players in SG book morning or evening slots.

Synthetic grass / carpet (condo tennis, some futsal)

Fast surface, low bounce. Requires a deeper knee-bend to hit clean groundstrokes because the ball skids through rather than kicks up. Recovery footwork also feels different — the surface friction is directional, which changes how your foot plants during a lateral push-off. Benguigui et al. (2024) documented measurable changes in player recovery speed across surface types, with synthetic carpet the fastest and clay the slowest.

Practical shoe recommendation

For SG conditions we recommend gum-rubber sole indoors (parquet) and herringbone-pattern outdoor tennis shoes for acrylic. Do not wear runners on parquet — the tread pattern is designed for asphalt and will slide unpredictably on wood.

The Summary. Limited land means we have to be efficient. Here’s the maths condo Management Corporations (MCSTs) use to squeeze more sports into the same footprint.

Did you know a full tennis facility footprint (playing court plus proper run-offs, roughly 36.6 × 18.3 m) can accommodate three badminton courts side-by-side, or two pickleball courts with proper run-offs, or one full tennis court with room to spare? This spatial math is why pickleball is exploding in Singapore condos — two pickleball courts can be lined onto an existing tennis rectangle for the cost of a bucket of paint.

The three most common Singapore overlays

• 1 tennis → 2 pickleball. A regulation tennis court (23.77 × 10.97 m) fits two pickleball courts side-by-side lengthwise. Line them in a contrasting colour and both sports use the same net (adjust the centre strap to 0.864 m for pickleball).
• 1 tennis facility footprint → 3 badminton. With the tennis run-off zones included, three badminton doubles courts (6.10 m × 3 = 18.30 m across) fit across the width. This is how most SG multi-purpose halls are dimensioned.
• 1 futsal pitch → 4 badminton. A 40 × 20 m futsal pitch has enough surface to line four badminton courts perpendicular to the futsal touchline. Rarely done in practice because of goal-post placement, but the geometry works.

For MCST committees pitching to their residents: showing the visualizer above with overlaid line sets is the fastest way to prove that adding pickleball or badminton lines to an under-used tennis court doesn’t require any construction — just paint. It’s the ultimate Singaporean solution to the sports-space crunch.