By cutting a straight line, you are ensuring the solid appearance of your artificial turf and making it easier to join turf elements, especially when you need to work around obstacles with 90-degree angles. 

When you turn the roll of artificial turf over, you can see the stitches. These stitches hold the artificial grass blades, so cutting through them can weaken the turf. That’s why it’s important to cut around the stitches. You’ll be cutting from the back of the turf, so you’ll be able to see the stitches. 

The straight line is the easiest cut to achieve. All you need to do is cut between the stitches. If you plan to put another piece of turf next to the one you are cutting, you must keep the distance between the stitches the same.’ 

If you can maintain the distance between the two stitches, the two pieces of turf can fit together perfectly. However, you would still need to secure the two sides of the turf carefully to minimize visibility.