The fibers of the putting green turf are slanted or have a slight grain running the length of the roll that you will notice.

Make sure the grain of each roll of putting green turf is running in the same direction.

Roll your putting green back up on the core and move it to your sub base. Place the green on the edge of the sub base and roll it out. You will notice a back strip running the length of each roll.

Lay one roll over where the seam will come together so the black backing is facing up. Take a utility knife with a brand new blade and cut between the first and second row of stitching the length of the roll. Take your time and do not cut into the stitching. Do this for only one of the rolls where your seam will be joined. Cutting between the rows of stitching will provide you with a guide-line and will remove the back strip. This will give you tight fit and a perfect seam when you join the rolls together.