Field size 19.1.3 The aim shall be to maximise the size of the playing area at each venue. With respect to the size of the boundaries, no boundary shall be longer than 90 yards (82 metres), and no boundary should be shorter than 65 yards (59 metres) from the centre of the pitch to be used.
The Melbourne Cricket Ground (MCG) in Australia has an overall ground dimension of around 171 x 146 meters, making it one of the largest cricket grounds. Eden Gardens in Kolkata, India is the oldest cricket stadium in the country, with a playing area roughly 137 x 150 meters and a boundary size around 66-71 meters.
The Boundary The International Cricket Council's (ICC) playing conditions state for international men's cricket boundaries shall be no longer than 90 yards (82.29 metres) and no shorter than 65 yards (59.43 metres) from the centre of the wicket being used.
With respect to the size of the boundaries, no boundary shall be longer than 90 yards (82 metres), and no boundary should be shorter than 65 yards (59 metres) from the centre of the pitch to be used. The equivalent ICC playing conditions (Law 19.1.
As per ICC rules, all boundaries in a cricket ground must be marked by a rope or similar object. The boundary should be at least 59 m from the centre of the field in men's international cricket – law 19.1. 3. The rope should be a minimum distance of 2.74 metres from the ground's perimeter fencing or advertising signs.
The ICC Test Match Standard Playing Conditions (October 2014) Law 19.1 defines the playing area as a minimum of 137.16m from boundary to boundary square of the pitch, with the shorter of the two square boundaries a minimum of 59.43m. The straight boundary at both ends of the pitch is a minimum of 64m.
In cricket, the boundary is the perimeter of a playing field. It is also the term given to a scoring shot where the ball is hit to, or beyond, that perimeter, which generally earns four or six runs for the batting team.
- The runs scored when the ball touches or crosses the boundary, which are either four or six depending on whether the ball bounced inside the field or not¹. The boundary count can also be used as a tie-breaker in some limited overs matches, such as the 2019 World Cup final between England and New Zealand.
(a) Wherever practicable the boundary shall be marked by means of a white line or a rope along the ground. (b) If the boundary is marked by means of a white line,(i) the inside edge of the line shall be the boundary edge.
If you hit the ball over the boundary on the full you are awarded more runs (usually 6). So essentially equivalent to automatic double / home run in baseball. Except, runs are more vital in baseball. In first class / list A cricket the boundary is always 4 / 6.