There are three parts to a castellera performance: the entrance of the teams, the exhibition itself, and the farewell. In some events, the teams enter the plaza to the rhythm of the music of the gralles and drums with a “walking” version of a human tower.
There are different ways to organize the rounds or turn of each colla during a performance. Historically, performances that involve more than one team began with simultaneous human towers; this traditional pacing has been recovered in some places. The first competition in Barcelona in 1902 set the precedent of letting each team perform individually, and this type of competition is now widespread.
The objective of each team is to build three towers, finishing with a pillar. Depending on the type of event, teams are generally given from four to six rounds to build their towers. The type of rounds are usually named after the place they were first tried or adopted: rondes vallenques (Valls rounds), rondes clàssiques (Classic rounds) o vendrellenques (Vendrell rounds), rondes tarragonines (Tarragona rounds) and rondes vilafranquines (Vilafranca rounds).
After each team performs their final pillar, many events conclude with a pilar al balcó, (which is built to reach the town hall balcony that opens to the plaza), a final farewell tower, or simply sips of vermouth for the gralla players.