The outer sidelines are marked 5.18m (17.00ft) apart and run parallel to one another. Any shot that lands inside the doubles sideline is considered “in” or valid for doubles matches. If the shuttlecock lands outside the outer sideline in doubles, it is considered out of play.
The lines marking out the court are easily distinguishable and coloured white or yellow. The lines are 40mm wide. A court may be marked out for singles only. The back boundary lines also become the long service lines and the posts or the strips of material representing them are placed on the side lines.
Net. The net is 760mm in depth and a minimum of 6.1m wide. The top of the net from the surface of the court is 1.524m at the centre of the court and 1.55m over the side lines for doubles. There must be no gaps between the ends of the net and the posts.
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.
Badminton is a global indoor sport governed by the Badminton World Federation (BWF). This game requires a lot of energy and is good for physical fitness. A lightweight racket and a shuttlecock are used in this sport. It is a game that each side with one or two players can play.
Back boundary line-The line similar to the baseline In tennis that designates the end or back of the badminton playing area. backcourt-Approximately the last 11 feet (3.35 m) of the court on either side of the net or midcourt to 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.
The side alley is out of bounds; the back alley is in bounds or good. The serve must carry past the short service line, which is 6.5 feet (about 2 m) from the net, and must not carry beyond the back boundary line. The lines are considered part of the court and in bounds.
The lines surrounding the court is called the BOUNDARY LINE. When the shuttlecock hits out of the line, the point is given to the receiver. There are 2 types of boundary line; the serving line,and the boundary line. The point is given to the hitter if the shuttlecock lands right at the line.