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Landscaping String trimmer

Published on May 20th, 2013 | by Staff


How to supercharge your string trimmer, save money & give your yard a cleaner, greener cut

Here’s an inexpensive way to take your string trimmer from so-so to supercharged. It’s all in the string!

Most homeowners who buy a string trimmer dutifully buy the same type and brand of string that came with the trimmer. But the pros know better. They store away the manufacturer-provided string and replace it with more effective string that reduces trim time and provides a better cut.

Here’s what you need to know:

  1. The string diameter required by your trimmer. Some common trimmer string diameters are .065” (1.7 mm) to .155” (3.9 mm). Read your owner’s manual to confirm what size is needed for your trimmer.
  2. How long the string should be to fully load your trimmer head. This information will also be available in the owner’s manual.

That’s it!

Now comes the fun part. Most manufacturer-provided string has a simple, round edge profile. It’s fine for light duty work, but because the string has a rounded profile, it will tear, rather than cleanly cut the grass and weeds. This can cause the grass to brown at the tips.  It will also generally take longer to trim.

Professionals use string with a non-round shape; they use star, cross and square-shaped string. These shapes create cutting edges that enable you to move through an area significantly faster. Most importantly, it provides a cleaner cut that means a healthier lawn with reduced likelihood of browned tips.

Check out our popular how-a-string-trimmer-works video with tips about how to care for your string trimmer and avoid costly repairs.

Something broken? We’ll help

RepairClinic has troubleshooting and repair how-to information for string trimmers in the Repair Help section of our website. With your string trimmer’s model number handy, head to RepairHelp to view a list of common symptoms including failure to start, engine stopping, head not spinning and others.

RepairClinic has replacement parts and maintenance products for string trimmers, edgers, leaf blowers, pole puners, hedge trimmers, chainsaws, log splitters, lawn mowers, small engines, snowblowers and other outdoor power equipment.

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About RepairClinic

Since 1999, three and a half million people have purchased replacements parts and accessories from RepairClinic and saved more than $260 million in repair costs by fixing appliances, lawn equipment, power tools, and heating & cooling equipment on their own. From the beginning, RepairClinic has provided free troubleshooting and how-to resources on its website.

The company’s 2,000+ free how-to repair and how-it-works videos on its YouTube channel have been viewed more than 41 million times.

RepairClinic’s free, advanced online repair help system empowers do-it-yourselfers to fix common problems associated with home appliances, lawn equipment, power tools and heating & cooling equipment. DIYers can enter a model number to choose from a list of common symptoms for that particular model, troubleshoot and watch award-winning, expertly-produced videos to learn the most likely causes and conditions and purchase the correct part. stocks more than one million parts and accessories for 160 brands of lawn mowers, small engines, snowblowers, string trimmers, furnaces, air conditioners, air handlers, heat pumps, washing machines, dryers, dishwashers, vacuum cleaners, power tools and many other products.

Since 1999, the company has served more than three million customers including homeowners, first-time and beginner DIYers, advanced DIYers, appliance repair professionals, small engine repair shops and landscaping and lawn care business owners. RepairClinic orders are backed by a 365 Days. Period.® return policy that enables customers to return any part. Of the more than one million parts available on the website, 95 percent of parts ordered are in stock and guaranteed to ship the same business day. RepairClinic ships within the United States, U.S. territories and military bases and Canada.

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About the Author staff members enjoy dozens of daily conversations with RepairClinic’s customer community every day. We're inspired by our customers' stories of successful DIY repairs, major money savings and empowerment to tackle many repair projects on their own. Every day, our 2,200+ free how-to videos are viewed 60,000 times. Visit and join us on Facebook, Twitter and YouTube.

2 Responses to How to supercharge your string trimmer, save money & give your yard a cleaner, greener cut

  1. kath g says:

    i LOVE this, who knew about the different kinds of string? not me, but now i do, thanks to you!

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