The court is 18m long by 9m wide, with each team's area being a 9m square. The net height is 2.43m for men and 2.24m for women. Some male players have a maximum reach exceeding 3.5m, allowing them to spike from more than 1m above the net.

Matches are played as a 5-set match. One set is won by the first team to reach 25 points, and the team that wins 3 sets wins the match. If the score reaches 24-24, the match continues until a 2-point lead is established. Only the 5th set is a 15-point match.

About positions
There are five positions: Outside Hitter (OH), Middle Blocker (MB), Opposite (OP), Setter (S), and Libero (L). It is standard to place a player of the same position diagonally from the front-row Outside Hitter and Middle Blocker in the back row. The Setter is paired diagonally with the Opposite.

The term 'Opposite' literally means 'on the other side.' It is named this because the player is positioned diagonally (opposite) to the setter. They specialize in attacking, do not participate in serve receive, and always join in back-row attacks even when they are in the back row. In contrast, the Libero is a player specialized in defense. They wear a uniform of a different color, cannot serve or spike, and cannot set the ball using an overhand pass in front of the attack line.

In volleyball, where three players are positioned in the front row and three in the back, the team rotates one position clockwise whenever they win the serve. Players who move to the back row cannot block, and their attacks are restricted (e.g., they must hit back-row attacks from behind the attack line), which adds variety to the game. Watching the match while keeping the rotation in mind makes it even more interesting.

A maximum of 6 substitutions per set are allowed.
Players who started the match and were substituted out may return to the court once during the same set. In this case, they can only be substituted back in for the player who replaced them, and this counts as two substitutions (one when leaving the court and one when returning). Note that substitutions involving the libero do not count toward the substitution limit.

Each team may request up to two 30-second timeouts per set.

This is a system that allows teams to request a video review if they disagree with a referee's decision.
There are 8 items for which a challenge can be requested: (1) ball in/out, (2) block touch, (3) antenna-related calls, (4) server line fault, (5) net touch, (6) floor touch, (7) attack line fault, and (8) last touch.
You can continue to request challenges until you have used up your two unsuccessful challenges per set.