Basketball Goal Height Regulations

Basketball was invented in 1892 by Dr. James Naismith, a physical education teacher in Springfield, Mass. Dr. Naismith was desperate to find something for his male students to do indoors during the harsh winter months when the students couldn't participate in traditional outdoor sports. In order to maximize playing space, he had the janitor mount that two peach baskets on the balcony above the floor of the gymnasium. The balcony, which was 10 feet off the ground, set the precedent for the basketball goal regulations we know today.

  1. Basketball Goal Height Regulations

    • Although the game has changed dramatically since 1892, the height of the hoop has remained the same. Regulation basketball rims at all levels of play are mounted 10 feet, or 120 inches, above the ground and attached to rectangular backboards.

    Backboard Regulations

    • Although some playgrounds and older gyms have fan-shaped backboards, rules committees at all levels of play have instituted rules to establish which backboards can be used for official competitive play. Regulation backboards are rectangular in shape and 72 inches wide by 42 inches tall. The backboard should extend out above the basketball court so that there are four feet of space between it and the baseline.

    Basketball Rim Regulations

    • Other than being exactly 10 feet from the playing surface, there are other regulations for competitive play when it comes to rims. A regulation basketball rim is 18 inches in diameter. The rim should be mounted so that the front of it is 24 inches from the backboard. Most rims are attached to the backboard by a 6 inch box that allows for the rim to flex or break away when a player dunks the basketball.

    Basketball Court Regulations

    • The foul line is 15 feet from the backboard and 13 feet from the rim on a standard basketball court. The top of the circle, from which a player can attempt a straight away three-point field goal at all levels below NBA, should be 19 feet 9 inches from the center of the rim. The NBA three-point line is 23 feet 9 inches from the rim.