Field of play
There is no mandatory surface for 3×3 basketball; a tournament can take place on concrete, asphalt, existing or temporary courts. Playability and player safety are key components when choosing a surface.
The official court size is 15 meters in width and 11 in length long with 1.5 meter boundaries. The court markings for the key and three-point lines are the same as on a standard court.
Accordingly, a standard basketball court falls within the recommended dimensions and allows two 3×3 games to be played simultaneously.
Source: FIBA
Video: Rules Explained
Preview: Serbia vs USA – Final – 2016 FIBA 3×3 World Championships