The court is rectangular and divided into halves by a net. Courts are usually marked for both singles and doubles play, although the laws permit a court to be marked for singles only. The doubles court is wider than the singles court, but both are the same length. The exception, which often causes confusion to newer players, is that the doubles court has shorter serve-length dimensions. The full width of the court is 6.1 meters (20 ft), and in singles, this width is reduced to 5.18 meters (17 ft). The full length of the court is 13.41 meters (44 ft). The service courts are marked by a center line dividing the width of the court, by a short service line at a distance of 1.98 meters (6 ft 6 inch) from the net, and by the outer side and back boundaries. In doubles, the service court is also marked by a long service line, which is 0.76 meters (2 ft 6 inch) from the back boundary. The net is 1.55 meters (5 ft 1 inch) high at the edges and 1.524 meters (5 ft) high in the center. The net posts are placed over the doubles sidelines, even when singles is played. There is no mention in the Laws of Badminton of a minimum height for the ceiling above the court. Nonetheless, a badminton court will not be suitable if the ceiling is likely to be hit on a high serve. 1.1 The badminton court shall be a rectangle marked out with lines 40 mm wide as shown in Diagram A. 1.1.1 The court for Wheelchair Badminton shall be as shown in Diagrams D and E, respectively. 1.1.2 For Standing Badminton classes playing half-court the court for singles shall be as shown in 1.2 The lines marking out the court shall be easily distinguishable and preferably be colored white or yellow. 1.3 All the lines shall form part of the area which they define. 1.4 The posts shall be 1.55 meters in height from the surface of the court and shall remain vertical when the net is strained as provided in Law 1.10. 1.5 The posts shall be placed on the doubles sidelines as in Diagram A irrespective of whether singles or doubles is being played. The posts or its supports shall not extend into the court beyond the side lines. 1.6 The net shall be made of fine cord of dark color and even thickness with a mesh of not less than 15 mm and not more than 20 mm. 1.7 The net shall be 760 mm in depth and at least 6.1 meters wide. 1.8 The top of the net shall be edged with a 75 mm white tape doubled over a cord or cable running through the tape. This tape shall rest upon the cord or cable. 1.9 The cord or cable shall be stretched firmly, flush with the top of the posts. 1.10 The top of the net from the surface of the court shall be 1.524 meters at the center of the court and 1.55 meters over the side lines for doubles. [[ko:배드민턴/코트 규모 [https://rulesforsports.com/badminton-court-size-measurment/ ]
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