The rectangular structure used to position and support the basketball net on either end of the court.
The backboard is an essential part of the game of basketball in that it is used to support the rim and net. In the NBA it is generally a steel frame housing a tempered glass or fiberglass pane. The backboard is positioned exactly 10 feet from the floor of the court, and measures 3.5 feet high and 6 feet wide. It also contains a painted rectangle just above the rim that is 1.5 high and 2 feet wide, for the purpose of targeting and making bank shots. Backboards also have lights built into their borders, synchronized with the shot/game clock that will light up when time expires.