We use and exterior adhesive to join our turf. The turf comes in twelve foot widths. When we finish a putting green, you will have a difficult time locating the seams on the putting green. A ball rolling over the seam will never detect it. After the putting green has been exposed to a few rains, the seams become even less visible. Often, we can not find them at all. Return to Putting green installation Return to previous step in the installation. Go to the next step in the installation.