Dimensions and Other Specifications
Bowling green specifications are stipulated in the Laws of the Sport of Bowls.
Several games of bowls can be played on a bowling green at the same time. The number of games depends on the dimensions of the green. Each game is played on its own portion of the green. These divided portions of the green are called rinks.
The length of a green in the direction of play will be between 31 metres and 40 metres. The green should have a suitable level playing surface made of grass or of an approved synthetic material.
The green is surrounded by a ditch between 200 millimetres and 380 millimetres wide, and between 50 millimetres and 200 millimetres deep. The ditch has a bank against its outer edge. The top of the bank should be at least 230 millimetres about the surface level of the green.
Generally, greens are built in a square shape as close to 40 metres as possible. This allows for games to be played in either direction. The advantages of playing in different directions are that: the wear on the green is more even, and; the players do not need to face towards the sun when playing.
In cities, where outdoor space is limited, greens are rarely 40 metres in length (however, they are generally still square).
It is not unusual to find greens that are rectangular in shape. On rectangular greens games are played in one direction only. The length of a rectangular green is still between 31 metres and 40 metres. The width can vary from as little as 8 metres (enough for one rink) to as much as 60 metres or more.
The width of a rink for outdoor play will be between 4.3 metres and 5.8 metres (for indoor play the minimum width of a rink is 4.6 metres). The centre line of the rink can be marked along the surface of the green starting at 2 metres from each end ditch. The side boundaries of each rink are shown by boundary pegs. The side boundary of the outside rink (also called a ditch rink) should be at least 600 millimetres from the side ditch (460 millimetres for indoor greens).
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