Baselines and sidelines (boundary lines): These lines define the outer limits of the basketball court. The baselines run behind each basket, while the sidelines stretch along the length of the court. Stepping over these lines during play results in the ball being out of bounds.

Lane lines are boundaries than span from the free throw line to the baseline. The width and shape of the lane lines vary depending on whether it is an amateur or pro game, and the size and shape of the lane also differs in international competition. The lane lines also contain lane spaces markings used to align and separate the non-shooters.

Lane lines are boundaries running from the free throw line to the baseline. The width and shape of the lane lines vary on different levels of the game. The lane lines also contain lane spaces markings used to align and separate the non-shooters.