In the image below 4m by 10m synthetic putting green material has been overlayed on the a drawing of the curved putting green. The area of the putting green is 35 square meters, but the turf needed is 40 square meters. There are 5 square meters of wastage. This will always be the case when one installs rectangular grass or turf on curved areas such as putting greens and landscaping designs. Ensure that you order enough material and make provision for wastage.