Badminton Court Dimensions: Everything You Need to Know

## Why Court Dimensions Matter Understanding the exact dimensions and layout of a badminton court does more than satisfy curiosity — it directly improves your game. The court's geometry determines shot selection, positioning, and strategic choices at every level of the sport. Players who know the court thoroughly have a significant advantage over those who play by feel alone. Every zone on the court has a purpose. The lines define what is in and what is out, what is legal in a serve and what is not, where you should position yourself in defence versus attack. Getting these details wrong costs points. Getting them right opens up tactical options that less knowledgeable opponents cannot exploit. This article covers the full badminton court — singles and doubles — with precise measurements and explanations of how each zone affects the game. Read it once and come back when you need to settle an argument or refine your positioning. ## The Full Court: Overall Dimensions A standard badminton court has the following key measurements: - **Length:** 13.40 metres (44 feet) — the same for both singles and doubles - **Width for doubles:** 6.10 metres (20 feet) — the outer sidelines are used only in doubles - **Width for singles:** 5.18 metres (17 feet) — in singles, only the inner sidelines apply; the outer sidelines are out of bounds This distinction between singles and doubles is one of the most commonly misunderstood aspects of badminton among newcomers. The outer sidelines — the lines at the far left and right edges of the full court — are only valid in doubles. In singles, those lines are considered out of bounds. The shuttlecock must land inside the inner sideline to be in play. Knowing this changes your shot selection in singles. A shot that appears to be heading wide of the court may actually be good if you have correctly calculated whether the outer or inner sideline applies. Many beginners lose points unnecessarily because they call shuttlecocks "out" when they have actually landed inside the correct sideline for the format being played. **The net** runs across the centre of the court, dividing it exactly in half. The net is 1.55 metres (5 feet 1 inch) high at the edges, where it is supported by two posts. The net dips slightly in the middle — approximately 1.52 metres — due to natural sag and the physics of how nets hang. This subtle difference at the centre is rarely significant in practice but is worth knowing. The net is 6.10 metres wide in doubles — matching the full court width. In singles, the net posts are positioned at the outer doubles sidelines, but the net itself is the same width. ## The Net and Its Physical Properties The net itself is made of synthetic mesh — typically nylon or polyester — strung tightly between the two posts. The mesh size is regulated: approximately 15-20mm across, which is small enough to prevent shuttlecocks from passing through but allows good visibility for players. The top of the net is banded with a white tape — a 75mm strip that runs the full width of the net. This white band is technically the top edge of the net and must be struck by the shuttlecock cleanly for a fault to be called in professional matches. At club level, the band is often ignored in casual play — it is the net mesh that stops the shuttlecock in practice, not the white tape. The net is not a solid surface. Shuttlecocks can pass through the mesh if hit with enough force, which is why smash shots at close range are so effective — the opponent has very little time to react and the net does not block the shot. This is one of the reasons why attacking formation in doubles means staying at the net: if you are too far back, your opponent can hit through the net mesh rather than around it. ## Service Courts: The Most Important Zones The service courts are where badminton's rules get detailed and specific. Understanding them fully is one of the highest-value investments you can make as a player — the majority of service faults in amateur badminton come from imperfect knowledge of the service court rules. **Each side of the court is divided into two service courts:** a left service court and a right service court. This creates four service courts total — two on each side of the net. **The service court dimensions:** - Length: 3.88 metres (12 feet 9 inches) — from the net to the long service line - Width: 2.53 metres (8 feet 3 inches) — from the inner sideline to the centre line The short service line marks the front boundary of the service court, 1.98 metres (6 feet 6 inches) from the net. The long service line marks the rear boundary at 3.88 metres from the net. The centre line divides the court into left and right service courts and runs perpendicular to the net. ## The Scoring Rule for Service Courts This is the rule that causes the most confusion and the most lost points in amateur badminton. **When your team score is an even number (0, 2, 4, 6...), you serve from the right service court.** **When your team score is an odd number (1, 3, 5, 7...), you serve from the left service court.** You switch service courts after every point scored, regardless of which player served or who won the rally. This is different from tennis, where players hold serve. In badminton, the server changes every single point. The reason this matters so much is that serving from the wrong court costs you the point immediately — your opponent does not need to win the rally, you simply hand them the point by serving incorrectly. In competitive badminton, this is called a "service fault" and is penalised without the opponent needing to return the serve. In doubles, this becomes more complex because two players share the court and both will serve during the game. The rule remains the same: even score = serve from right, odd score = serve from left. After each point, the server switches and the partner takes over the opposite service court. This is one of the reasons doubles serving patterns look confusing to newcomers — both players are constantly shifting position between points. ## The Short Service Line and Its Role The short service line is located 1.98 metres from the net — closer than most beginners expect. A serve that looks like it will land short often actually lands long because players misjudge this distance. Watching a beginner serve for the first time, you will frequently see them serve from too far back — their natural instinct is to be as far behind the line as possible, but serving from too deep means the shuttlecock has further to travel and is more likely to drift beyond the short service line. This line applies only to serves. During rally play, there is no restriction on where the shuttlecock lands — it can land anywhere inside the court boundaries. But on a serve, the shuttlecock must land before (in front of) the short service line, not beyond it. The distance from the net to the short service line is shorter than many newcomers think. If you are serving from the wrong position — too far back, or from the wrong side — the shuttlecock's trajectory will naturally carry it beyond the short service line and your serve will be judged illegal. **Key rule:** In doubles, the back boundary for the service is the long service line, not the full rear court line. In singles, the back boundary for the service is the full rear court line. This means doubles serves travel a shorter distance than singles serves — another detail that catches out beginners moving between formats. ## Singles Court: Specific Considerations In singles, the court is effectively the full length (13.40 metres) but the width is narrower (5.18 metres). Only the inner sidelines and the full-length outer boundary apply in singles. The outer doubles sidelines are out of bounds. This affects shot selection significantly. In singles, because the court is narrower, players have less room to hit wide angles on the forehand and backhand. The shuttlecock can be played closer to the outer sideline and still be in play if it lands inside the inner sideline. This makes cross-court shots — hitting diagonally across the net to the opposite side of the court — particularly useful in singles, as they open up angles that are not available in doubles. Singles also uses the full-depth service court. The serve must travel from behind the short service line and land in the service court that stretches to the rear of the court. There is no short rear boundary in singles service — the full 13.40 metres applies. The singles court rewards endurance above almost all other attributes. The full length of the court must be covered by a single player, which means footwork efficiency is paramount. The best singles players have extraordinary economy of movement — they reach the shuttle early, control the rally from the centre, and recover to the optimal position between each shot. ## Doubles Court: Specific Considerations The doubles court is wider (6.10 metres) but the service court is shorter at the rear. The long service line marks the back of the valid service area in doubles. The full rear line of the court (the baseline) does not apply to serves in doubles — it only applies during rally play. In doubles, the outer sidelines are valid for all shots including serves. This makes the court significantly wider to defend and creates opportunities for wide-angle serves and shots that are not available in singles. The penalty for hitting wide in doubles, however, is higher than in singles — the court is wider and your partner may not be able to cover the space you've opened up. The two main serving rules in doubles that differ from singles: 1. The serve must be struck from behind the short service line and land within the service court bounded by the long service line at the rear 2. Both feet of the server must remain inside the service court until the shuttlecock is struck — in singles, the server can have one foot outside the service court ## Why Understanding the Court Gives You an Advantage Players who know the court dimensions precisely can do several things that less informed opponents cannot: **1. Call out width with confidence.** If you know exactly where the lines are, you can make precise calls on shuttlecocks that land near the sideline. In casual play without line judges, this matters enormously — close line calls are the source of most post-rally arguments in club badminton. **2. Target the short service line on your serve.** Because you know exactly where 1.98 metres from the net is, you can aim precisely and consistently — giving your opponent no easy return. A well-placed serve that just clips the short service line is among the most difficult serves to attack, because the opponent must move forward to reach it, taking away their backswing. **3. Recognise when opponents serve illegally.** In social play, most players do not know the service court rules perfectly. You will frequently see opponents serve from the wrong side or serve short when they thought they were serving long. You gain free points by knowing the rules better than your opponent. **4. Position correctly for the next shot.** Knowing where the court boundaries are helps you recover to the right position after each shot. If you know exactly how much space you have to cover, you can position more efficiently, arriving early rather than late. **5. Dispute line calls accurately.** When a rally ends and there is disagreement about whether the shuttlecock landed in or out, knowing the exact location of each line helps you resolve the dispute without animosity. In badminton, a shuttlecock that lands any part on the line is considered valid — it is not "out until proven in." ## The Centre Line and Its Role The centre line runs the full length of the court, perpendicular to the net, dividing the court into left and right halves. It is the line that separates the two service courts on each side. This line matters in doubles during service — the serve must land in the correct service court (left or right) and cannot cross the centre line into the opponent's service court. The serve travels diagonally in badminton, which means it starts from one service court and must land in the opposite service court on the other side of the net. The centre line is also important when the shuttlecock lands exactly on it — in badminton, the line is considered in play. If any part of the shuttlecock touches the line, the shot is valid. This is sometimes called the "line is in" rule and applies to all lines on the court, not just the centre line. ## Practical Courtside Observations Next time you are on court, take 60 seconds to look at the lines from different positions. Notice: - How close the short service line is to the net — it is farther forward than most beginners expect. Stand behind the short service line and look back at the net from that perspective. The distance is surprisingly short. - The difference in depth between the singles and doubles service courts — the singles service court extends much deeper toward the rear line than the doubles service court does. - How the centre line splits the court symmetrically — both left and right service courts are identical dimensions. - The width difference between the inner sideline (singles) and outer sideline (doubles) — in singles, there is 0.46 metres of additional space outside the inner sideline that is only used in doubles. - How the net post sits exactly on the outer doubles sideline — in singles play, the post is technically outside the playing area but does not affect the game. This visual familiarity will translate into better shot selection and fewer errors under pressure. ## Court Surface and Lighting Considerations While not strictly dimensions, the court surface and lighting are specified by the Laws of Badminton and affect play meaningfully. The court must be on a level surface — typically wooden or synthetic — that allows players to move quickly in all directions. The surface should not be slippery and should provide adequate grip for the shoes worn. Wooden courts are preferred in club and competitive play because they offer a consistent bounce and good grip. Synthetic courts are common in leisure centres and are generally cheaper to install and maintain. Lighting must be uniform across the court, at a minimum of 500 lux at court level for international competition and 300 lux for national and club play. Poor lighting affects depth perception and makes it harder to judge the shuttlecock's flight — particularly at the rear of the court where the light may be behind the player. This is why evening sessions at poorly lit venues can feel significantly harder than daytime play, even for the same opponents. When playing in a new venue, it is worth spending a minute observing how the shuttlecock behaves under the available lights before starting competitive play. Different lighting temperatures — warm LED versus cool fluorescent versus natural light — can subtly affect shuttlecock visibility and flight paths. Feather shuttlecocks are particularly sensitive to lighting conditions, which is why club players often select their shuttlecocks based on the venue. ## Key Numbers to Remember Here are the essential measurements to carry with you on court: - **13.40m** — full court length (singles and doubles) - **6.10m** — doubles court width - **5.18m** — singles court width - **1.55m** — net height at the edges - **1.52m** — net height at the centre (sag) - **1.98m** — distance from net to short service line - **3.88m** — length of a service court (from net to long service line) - **2.53m** — width of a service court - **21 points** — game winning score - **2 point minimum gap** — required to win - **30-29 maximum** — score ceiling in a game The court is defined by these dimensions in the Laws of Badminton, published by the Badminton World Federation (BWF). All competitive and club play uses these standards globally. The same dimensions apply regardless of whether you are playing in London, Tokyo, Jakarta, or Copenhagen — the court is identical from local club level to the Olympic final.