Can me and my friends just play on a basketball court or football field?

An official handball court is 40 meters long by 20 meters wide but of course you and your friends can play on a basketball field or any other surface where you can run and bounce the ball at the same time.

no

Handball is played on a court forty meters long by twenty meters wide (40mx20m), with a dividing line in the middle & a goal in the center of either end. The goals r surrounded by a near-semicircular line that is generally six meters (6m) away from the goal, called the crease. There is also a dashed near-semicircular line that is nine meters (9m) away from the goal. In established play (which is most of the time, although counterattacking is becoming increasingly important), the defenders stand right outside the 6 m line, with the attacking players throwing the ball to each other a bit outside the 9 m line, trying to create an attack (either by shooting from a distance, or passing to a player standing at the 6 m line).

After a goal has been scored, the team conceding the goal restarts the game. Its players move to the center line. Once a player has the ball under control the referee will blow his whistle to restart play. All players of the team which r restarting the play must be behind the line on their own half, or else the restarting throw will have to be retaken.

Only the defending goalkeeper is allowed to step inside the six meter (6m) perimeter, though any player may attempt to catch & touch the ball in the air within it. If a player should find himself in contact inside the goal perimeter he must immediately take the most direct path out of it. Should a defender make contact with an attacker while in the goal perimeter, their team is penalized with a direct attempt at the goal, with only one attacker on the seven-meter line & the defending goalkeeper involved.

The ball is smaller than a football in order for the players to be able to hold & handle it with a single hand (though contact with both hands is perfectly allowed). Some American versions use a volleyball. It is transported by bouncing it between hands & floor — much as in basketball. A player may only hold the ball for three seconds & may only take three steps with the ball in hand. After taking three steps the player will have to make a dribble with one hand in order to continue moving forward, but if the ball is held in both hands after making a dribble & the player makes another dribble, a free throw will be given to the other team for a ''double dribble''. There r many unofficial rule variations; a common American version allows only a single step with the ball, after which the player must pass the ball to another teammate or shoot.

Handball is played on a court forty meters long by twenty meters wide (40mx20m).