What thickness trimmer line should I use?

0.065-inch line for light grass and edging. 0.080-inch for standard lawn trimming and moderate weeds. 0.095-inch for thick weeds and brush. 0.105-inch and above for heavy brush clearing. Using line that is too thick for your trimmer can strain the motor. Always match line thickness to your trimmer's specification.

How do I achieve clean edges with a string trimmer?

Hold the trimmer vertical with the line spinning parallel to the edge you want to define. Walk slowly along the edge at a consistent speed. The line should barely contact the grass edge — do not dig into soil. Keep the spool guard facing the grass side to protect garden beds and hardscaping from line damage.

Best String Trimmers 2026