The line draw rectangle is 40mm wide. The standard size of a badminton court is one meter long, one meter wide for singles, and one meter wide for doubles.
Badminton Boundary Rules.
Single boundary, the bottom is bounded by the outer line, and the two sides are bounded by the inner line. Doubles boundary, the bottom is bounded by the outer line and the sides are bounded by the outer line. And when serving, singles and doubles must be served from the teeing ground. The landing point is in bounds, one-third of the ball head is out of bounds on the line, and two-thirds of the line is in bounds.
Badminton serve rules.
Serve can be divided into forehand serve and backhand serve. Generally speaking, forehand service or backhand service can be used for front ball, flat fast ball and flat high ball, while forehand service must be used for high and long ball. The serving rules for singles in badminton are different from the serving rules for doubles. The singles serve usually stands about 1 meter away from the front serving line, and the doubles basically stand at the corner of the center line and the front serving line. Mixed doubles male players usually serve behind the female players.
Badminton Singles Rules.
Each match is best of three, with the team ahead by 21 points winning the official match. If the score between the two sides is 20-20, the winning side needs to surpass the opponent by 2 points to win. If the score is 29-29, the side with the 30th point wins and the winner will serve first in the next game. When a team scores 11 points in a game, both players will have a 1-minute rest, with a 2-minute rest between games.