Indoor Badminton Court Dimensions Explained
The official court is 13.4 meters long and 6.1 meters wide for doubles. For singles, the width shrinks to 5.18 meters. That is it. There are not many variables to juggle, but getting the lines right matters more than people realize, especially if you are setting up a home court or trying to understand why your game feels off when you step onto a poorly marked facility. I spent years coaching in community centers and school gyms where the court markings were either faded beyond recognition or painted over with questionable accuracy. One particular problem I ran into was a facility that claimed to be regulation size but was actually 13.2 meters instead of 13.4. That two-centimeter difference barely registers visually, but it throws off serve depth judgment, especially on quick net returns. I ended up just laying down my own tape for practice sessions because trust but verify. Let me walk through the dimensions and what each line actually means in play, because memorizing numbers without understanding the function won't help you on the court.
Length: 13.4 meters (44 feet) This runs from the back boundary line to the other back boundary line. The center line divides the court vertically into two service courts. The short service line sits 1.98 meters from the net on each side, and the long service line for doubles is 0.76 meters inside the back boundary. These service lines exist for a reason most recreational players ignore. Width: 6.1 meters (20 feet) for doubles, 5.18 meters (17 feet) for singles
The outermost side boundaries define the full doubles width. The inner side boundaries narrow the court for singles play. The difference is almost exactly one meter, and it changes how you cover ground significantly. If you train only on a full-width court and then play singles, you will find yourself stepping out of bounds more often than you should. Net height: 1.55 meters at the edges, 1.524 meters at the center The net sags slightly in the middle, which is accounted for in the rules. A tight net that dips too much at center is a sign of poor setup. I once played on a court where the center was nearly 10 centimeters lower than regulation because the tape had stretched over time. Smashes that would normally clip the net tape sailed clean through the sagging section every time. It changed the entire rally dynamic.
Get the Full Details
Here is a practical approach to marking or verifying your court. Get a steel tape measure, not a fiberglass one, because those stretch. Measure diagonally from corner to corner. If both diagonals are equal, your rectangle is square. If they differ by even a centimeter, your corners are off and your service box dimensions are already compromised. This took me maybe ten minutes once and saved me from weeks of misaligned practice drills. One counter-intuitive thing about court dimensions that beginners miss is that the service boxes are actually quite small relative to the full court. The long doubles service line creates a shallow receiving area, which is why high clears to the back of the court during a doubles serve return are so effective. The receiver has limited to work with on the serve, and that is by design. Understanding this changes how you approach serve placement rather than just aiming for the middle. Another detail most people overlook is the clearance height. BWF recommends a minimum of 9.2 meters from the floor to any overhead obstruction. This matters far more than court surface dimensions for actual play quality. I played in a gym with a low basketball hoop structure that intruded into the airspace above the court, and every overhead clear became a calculated risk. You learn quickly not to go for height in that situation.
If you are setting up a temporary or permanent court at home or in a multipurpose space, consider using removable court tape rather than paint. Paint is permanent and unforgiving if you make a measurement error. Tape costs roughly $30 to $50 for a full set and can be removed without damaging most flooring surfaces. I switched to tape after accidentally measuring wrong on a concrete court and having to live with crooked lines for two years. For reference, the BWF handbook publishes these dimensions in appendix one, and you can find the current edition on the BWF website. The measurements are straightforward but the enforcement at amateur levels is essentially nonexistent, which is why learning to self-verify your court saves you more headaches than buying expensive equipment ever will. I also want to note a limitation here. These dimensions assume an indoor court under controlled conditions. Outdoor courts, school gyms with basketball overlays, and converted sports halls often compromise on one dimension or another. There is no universal fix for that except knowing which lines truly matter for the type of play you are doing and marking only those with temporary tape while ignoring the rest. A properly marked service area within an otherwise sloppy facility is better than a perfectly painted court you cannot trust.
