Standard basketball court dimensions for a high school court. Remember that the NCAA has moved the three point line back one foot. The NCAA three point arc radius is now 20 feet 9 inches. The high school three point arc stayed the same at 19 feet 9 inches.
Width: 50 feet
Length: 94 feet
Free throw line to backboard: 15 feet
Backboard Dimensions: 6ft wide x 3.5 ft tall
Basketball Rim Diameter: 18 inches
Rim Height: 10 feet
NCAA Basketball Court Layout with longer three point line.