The horizontal bar joining the two rugby union goalposts is called the crossbar.
The goalposts and crossbar form the H-shaped goal structure at each end of the field. A kick at goal succeeds when the ball passes over the crossbar and between the posts, provided it meets the relevant law requirements.
The crossbar is positioned three metres above the ground in rugby union. The posts rise vertically from its ends, and modern goalposts are often protected by padded coverings for player safety.
The crossbar is easy to confuse with the dead-ball line or the crossbar-like structure in other football codes. In rugby union, the dead-ball line marks the far boundary of the in-goal area, while the crossbar is part of the scoring apparatus.