Overview

A basketball court is the marked playing area where the sport of basketball is contested. Courts exist indoors and outdoors, in community parks, schools and professional arenas. Each end of the court features a hoop mounted above a backboard; players score by passing or shooting the ball through the hoop.

Layout and key parts

The court is a rectangular surface defined by sidelines and baselines. At its center is the center circle used for opening jump balls. Other standard elements include the free-throw line, the painted lane or "key," the three-point arc, and restricted-area markings under the basket. The hoop rim is universally positioned 10 feet (3.05 m) above the playing surface.

  • Key markings: center circle, free-throw line, paint/lane, three-point line, sidelines and baselines, restricted area.
  • Equipment: hoop and backboard, shot clock and game clock in organized competitions, scorer's table and benches for teams.

Dimensions and variations

Court size varies by level. A full professional court used by the National Basketball Association measures 94 by 50 feet (about 29 by 15 m). International governing bodies use slightly different measurements, and many high school and recreational courts are smaller. Three-point line distances and key dimensions also differ between leagues.

Surfaces and maintenance

Indoor courts are commonly finished in hardwood (maple) to provide a reliable bounce and player traction; outdoor courts often use concrete, asphalt, or modular synthetic tiles that tolerate weather. Regular maintenance includes cleaning, refinishing wood floors, repainting lines, and repairing cracks or uneven spots to preserve safety and ball behavior.

History and development

Basketball was invented in 1891 and early games took place in gymnasiums or adapted spaces. As the sport organized, standard court markings and dimensions were developed to ensure consistent play. Innovations such as the three-point line and shot clock were added over time to shape tactics and pace.

Uses, significance and notable differences

Courts serve competitive, recreational and instructional roles: organized leagues, pickup games, practices and physical-education classes. Differences in surface, size and line placement influence strategy, player movement and scoring. Knowing the specific rules and measurements for the level of play—recreational, high school, collegiate, professional or international—is important for referees, coaches and players.

Further considerations

When building or choosing a court consider available space, intended use (indoor vs outdoor), local climate, and whether to follow a particular governing body's specifications. Clear markings, proper hoop height and safe surfacing are basic requirements for fair play and player safety.