The build-out line is placed approximately halfway between the penalty area and the halfway line on each side of the field. This line is marked to give players more space and time to develop their play.  The exact distance of the build-out line may vary slightly depending on field dimensions, but it is typically around 14–20 yards from the goal line, ensuring a balance between providing space and maintaining competitiveness in the game.

The build-out line is specifically used in 7v7 soccer for age groups such as U9 and U10, in accordance with developmental soccer guidelines. This rule encourages young players to focus on building their skills, such as passing and possession, by limiting high-pressure situations during restarts. Opponents must retreat behind the build-out line until the ball is back in play, which occurs when the ball is either touched by another player or leaves the penalty area. This ensures the game environment fosters learning and development rather than prioritizing immediate competition.