The outermost lines form the doubles court. So in a doubles rally, the shuttle is allowed to land anywhere on the court. The singles court is slightly narrower than the doubles court. The singles side lines are not the outermost lines, but the next ones in.
Badminton Rules: Doubles – what's in and what's out? During the main part of a badminton doubles rally, every part of the court is in. However, the serve must fall into the 'short and ' area diagonally opposite the server. The side tramlines are in, but the rear tramlines are out during the serve.
For Doubles: During service, the left & right side boundaries are considered as valid. While, the back boundaries are considered as invalid. However, during game play the complete court is considered as valid.
- A legal doubles serve would land in the area bounded by the center line, the doubles long service line, the doubles side line and the short service line (short and wide). - Once the serve is made in doubles, the court area is bounded by the doubles sideline and the back boundary line.
In singles the court is thinner, with the wide, outside 'tramlines' out of bounds. In doubles the court is full width and these tramlines are now 'in'. During service in doubles, the court is short, with the rear 'tramlines'at the back of the court, being out of bounds until the serve is returned.
With laws of badminton dictating specific rules for service in badminton, the court has two service lines, the short service line, which is 1.98m (6.5 feet) from the net, and long service line 0.72m (2.36 feet) in from the baseline, specifically marked for this purpose.
Serving rules A player shall always serve from the left-hand box if they have an odd number of points, and right-hand box if they have 0 or an even number of points (see point 6 for further explanation). Receiving players do not swap sides of court. Every time there is a serve, a point is scored.
In singles the court is thinner, with the wide, outside 'tramlines' out of bounds. In doubles the court is full width and these tramlines are now 'in'. During service in doubles, the court is short, with the rear 'tramlines'at the back of the court, being out of bounds until the serve is returned.
Touching the net with the body or the racket is illegal and will result in the loss of the serve or a point awarded to the serving team. Only one hit is allowed per side. If the shuttle hits or goes over the top of the basketball backboard (when they are in their put away position), it will be considered out of bounds.
So just to be clear, a doubles service court is made from these four lines: The centre line. A doubles side line (outside side line) The front service line. The inside back line (not the very back line, but the next one in)