The diagram below shows the basic layout of the field and sideline. The field is divided into two halves, each of which is called a neutral zone, and a two-minute warning zone. The neutral zone is the field in which the teams of the opposing teams start the game with the ball. A team is awarded one point for a first down and zero for a touchdown. For a touchdown, the offense must first gain yardage. The kickoff is awarded to the opponent's team, and the defense is asked to stop the offense, unless it is first down. The field is divided into five zones, corresponding to the five offensive zones, and the three defensive zones.
The three offensive zones are designated by red arrows. The two defensive zones are designated by green arrows. Offensive zones are defined as the middle of the field and the two ends, respectively. The area between the two zones is known as the end zone.
The field dimensions are discussed in more detail in Section 5.3. The goal lines are 19 yards (11 m) long and 11 yards (8.4 m) wide. The boundary between the goal posts is marked with an 8-inch (20 cm) high (16 cm) metal post. The goal posts are designed to be used with the ball at the centerline and are not designed to be used with the ball at the end lines. If the ball is placed in the end lines, the ball must be placed in a spot where it can be reached by the referee on a straight line. If the ball is not placed at the end lines, the referee can then make a call on a point of the field.
In the event that the ball is placed at the end lines, the ball must be placed in a spot where it can be reached by the referee on a straight line. 1.2 The Tackle Box The tackle box is the area in which the offensive lineman lines up and blocks for the defensive line. It is generally located between the offensive line and the defensive line on the right side and at the left end of the field on the left side. The tackle box is approximately 0.5 yards (0.38 m) in diameter. After the center moves to the offensive side, his two linemen move to the left side of the tackle box, and the backup linemen are assigned to this area. The defensive linemen are designated by a number and are commonly referred to as blockers. The defensive linemen are in a position to block for the offense and can move to any part of the field as needed. The defensive linemen' primary task is to block offensive players, but they also have the ability to move forwards or backward to help the offensive line if necessary.
1. The end line is the boundary between the opposing teams and the sideline is the area in which the players stand at the end of the field. In most games, the field is covered with grass. When the game is played indoors, the field is covered with artificial turf. The specifications for the field are as follows: Field Size: 15.50 yards (12.6 m) Difficulty: Medium Floor Thickness: 0.25 inch (0.4 mm) Air Pressure: 1200 psi (3.6 kPa) Height: 3 feet (1.2 m) Compass Direction: North-South Field Surface: Surface Fence: 12 inches (30.5 cm) high Fence Length: 12 feet (3.2 m) Fence Width: 4 feet (1.2 m) Gutter Diameter: 0.5 inch (1.