Best String Trimmer

The best string trimmer cuts through tough weeds and vegetation like a knife through butter. Choosing the wrong one could result in hours of frustration. Our evaluation focused on portability, line thickness, cutting width, and electric vs. gas-powered string trimmers. We also concentrate on auxiliary features such as compatibility with different attachments (e.g., cultivators and blowers) and grip handle quality.

After more than 17 hours of research and testing, our top pick goes to the WORX WG163 PowerShare Cordless String Trimmer. It is an absolute powerhouse, doubling as an edger with a lightweight, user-friendly design and a trigger-activated telescopic handle that makes it comfortable to use. Keep reading to learn more about the WORX WG163 PowerShare Cordless String Trimmer and five others that met our strict grading criteria.

Top 6 Best String Trimmer

 #1  WORX WG163 GT 3.0 20V PowerShare 12″ Cordless String Trimmer

Award: Top Pick

WHY WE LIKE IT: This is the best cordless string trimmer, converting from a trimmer to an edger in two seconds. It is excellent for people who have open grass areas and plant beds to maintain.

Pros
  • Best budget
  • Great on uneven surfaces
  • Quick transition from trimmer to edger
Cons
  • Non-detachable head
  • So-so battery life

We love this string trimmer’s lightweight. Weighing only 5 pounds, it is very comfortable to use, even on uneven terrain. It also uses a trigger-activated, height-adjustable telescopic shaft that works well with shorter or taller people. Transitioning from a trimmer to an edger only needs a quick twist of the trimmer head, making it a winner in our book.

Line feeding is effortless using this best budget string trimmer. It uses a push-button to feed the line. As of the time of this writing, WORX is offering free enrollment in its ‘Free Spools for Life’ program, providing an endless supply of string. This beats having to return to the store time and time again. If only the best gas chainsaw provided the gas for free.

 #2  Husqvarna 128LD 17″ Cutting Path Detachable Gas String Trimmer

Award: Honorable Mention

WHY WE LIKE IT: This is the best gas string trimmer, compatible with an edger, cultivator, and pole saw attachments. It is a great choice for landscapers with a more diverse set of needs.

Pros
  • Best gas
  • Fits multiple attachments
  • 40-inch shaft
Cons
  • Non-adjustable carburetor
  • So-so two year limited warranty
  • Heavy

This best commercial string trimmer is very powerful, operating at a max speed of 8,000 RPM. It also has a very generous 17-inch cutting width, which is great for overgrown grass and shrubs. A 40-inch, straight detachable shaft is also helpful for hard-to-reach areas such as overhanging tree branches and bushes.

Our favorite feature is this string trimmer’s compatibility with different attachments. Optional edgers, cultivators, and pole saws can cut everything from small pathway edges to tree branches. We really enjoyed the versatility this string trimmer has in addressing many gardening needs. It is as handy in the yard as the best small chainsaw.

 #3  BLACK+DECKER 40V Max Cordless Sweeper & String Trimmer Combo

Award: Best Design

WHY WE LIKE IT: This is one of the best electric string trimmers which includes a sweeper. It is an excellent choice if you are looking for short charge times (20-25 minutes) in between jobs.

Pros
  • Best electric
  • Quiet operation
  • Converts from trimmer to edger quickly
Cons
  • So-so battery life
  • Heavy (11 pounds)

We were really impressed with how well this string trimmer cut through thick weeds and thin tree branches. We observed no stalling or lag. Like our #1 pick, WORX WG163 GT 3.0 20V PowerShare 12″ Cordless String Trimmer, it also converts from a trimmer to an edger in seconds. An adjustable handle height also allows us to trim weeds without getting fatigued.

Thanks to this string trimmer’s sweeper, it can clear debris very quickly with speeds hitting 120 miles per hour. We appreciate being able to blow leaves in a large pile instead of raking them. Bonus points for its combo kits, including a pole saw, cultivator, and hedge trimmer (all sold separately). It is a reliable all-around tool a professional landscaper would find very useful, much like the best shovel.

 #4  EGO Power+ 15-Inch 56-Volt Lithium-Ion Cordless Brushless String Trimmer

Award: Best for Thick Weeds

WHY WE LIKE IT: This cordless string trimmer comes with a thick line (0.095″), 20% thicker than traditional lines, which provide extra cutting power through heavy gauge vines and weeds.

Pros
  • Best quality
  • Padded handle
  • Durable and thick line
Cons
  • High cost
  • Poor customer service
  • Loud

This string trimmer is very easy to use because of a sensitive pressure trigger that gives greater controlin trimming grass to the desired length This is especially useful when trimming plant beds and in between turf and pavement. Bonus points for its 5-year limited warranty, head over heels above our #2 pick’s Husqvarna’s 2-year limited warranty.

We appreciate its thick line (0.095″). It works great with tougher weeds and vegetation. A 15” cutting diameter is also generous, cutting through a large surface area, especially useful out in open fields. While testing, we were easily able to cut a 15 foot by 8″ patch of grass in less than 5 minutes. It takes longer to use the best leaf blower to gather the leaves, so we like that.

 #5  DEWALT DCST925M1 String Trimmer

Award: Best Trigger

WHY WE LIKE IT: This string trimmer comes with a variable speed trigger and a lightweight design, which provides some of the best control of cutting speeds.

Pros
  • Lightweight (only 11 pounds)
  • Variable speed trigger
  • Battery can be used with other Dewalt tools
Cons
  • Small guard
  • Trigger too high up in the shaft

Aside from the Dwalt name, wee love this string trimmer’s 13″ trimming diameter, which is great to cover most small to medium-sized yards in less than 5 minutes. Variable speed controls allow you to adjust speed, with lower speeds for tighter edges and higher speeds for open areas.We also like its 20V lithium ion battery’s compatibility with other Dewalt tools, which covers more than 180 products. This is definitely a big win for Dewalt fans.

This electric string trimmer operates a lot quieter than many gas-powered models. It is also very lightweight, weighing less than 12 pounds. We are very comfortable using this for weekly yard work.

 #6  CRAFTSMAN V20 String Trimmer / Edger

Award: Best Lightweight

WHY WE LIKE IT: This cordless string trimmer comes with 2 speed settings. It is a great choice if you prefer to alternate between power (shorter run time) and a longer run time (less power).

Pros
  • Two speed settings
  • Lightweight
  • Variable trigger
Cons
  • So-so edging quality
  • Weak low speed

This cordless string trimmer has a 22-inch steel dual action blade, which really cuts through thick scrubs and weeds up to 3/4 of an inch thick. It is also lightweight (only 8.3 pounds) and very easy to maneuver with a non-slip ergonomic handle. It is a decent option for weekly cutting jobs.

Like our #1 pick, this string trimmer doubles as an edger with a quick turn of the trimmer head. Though it takes 40 minutes to charge, its run time is decent. While testing, batteries lasted roughly 30 minutes on the high-speed setting and 45 minutes on the low-speed setting, which should bode well for most people’s patience.

How We Decided

In determining the string trimmer to buy, we explored electric vs. gas powered string trimmers, portability, cutting width, line thickness, and attachment compatibility.

Gas-powered string trimmers are typically reserved for larger yards with more intensive needs, such as thick scrubs or overgrown weeds. The best electric string trimmer is less messy (no gas) but has to be recharged. One of our top picks, the Craftsman V20, needs a 40-minute charge to run up to 45 minutes on a low-speed setting.

We recommend cutting widths between 12 and 14 inches to cover mid to large-sized yards. The larger the cutting width, the fewer passes you have to do and the quicker you are able to cover a large surface area. We also prefer portable string trimmers that weigh no more than 8 pounds, which helps decrease hand and arm fatigue over time. Lastly, string trimmers compatible with multiple attachments such as cultivators and blowers make it even more useful for more intensive gardening jobs.

Best String Trimmer Buying Guide

The Most Important Features to Consider

  1. Electric vs. Gas Powered
    Electric string trimmers are usually less potent with lower RPMs than gas-powered trimmers, which are more capable of cutting thicker vegetation. However, it comes at the expense of having to fill it with gas, which can quickly become messy. The best cordless string trimmers have a favorable charge to run time ratios (e.g., the Craftsman V20’s 40-minute charge for a 30-40 minute run time)
  2. Cutting Width
    The larger the cutting width, the more grass you cut per pass. We recommend larger cutting widths (in the 13-14 range) for larger yards and 12 inches or less for smaller yards.
  3. Edger
    Bonus points for string trimmers that can convert to edgers. This helps with tidy trimming around plant beds and the areas between the grass and pavement that need more of a touch-up. We like the fact the WORX WG163 GT 3.0 20V PowerShare 12″ Cordless String Trimmer about to convert from a trimmer to an edger in two seconds.
  4. Ergonomics
    We like string trimmers that weigh no more than 11 pounds with a padded handle. This helps prevent hand and arm fatigue, especially when working with sprawling lawns and open areas.
  5. Trigger
    Look for string trimmers with variable speed controls, which allows you to adjust trimming speeds to focus on a desired length. Some come with pressure-sensitive triggers, which makes it easier.
  6. Cutting Swath/Diameter
    We recommend cutting swath with a minimum of 13 inches in diameter, which we feel offers the best experience tackling small to mid-sized grassy areas without repeated passes.
  7. Noise
    In general, gas-powered string trimmers are noisier than electric string trimmers. Gas-powered string trimmers can hit sound levels upwards of 90 dB, or about the same as your average lawnmower or motorcycle engine.

String Trimmer FAQs

Are cordless string trimmers any good?

We recommend cordless string trimmers for less intensive tasks. Gas-powered string trimmers rotate a lot quicker and carry more power. However, its at the expense of having to work with gas, which can get messy in a hurry. Think of it as sacrificing convenience for power.

What is the best string trimmer on the market?

We consider the best string trimmer the one most suited to your needs. If you have carefully manicured patches of grass and driveways, a trimmer/edger combination like our #1 pick WORX WG163 GT 3.0 20V PowerShare 12" Cordless String Trimmer is more than capable of doing the job.

Are electric string trimmers any good?

Yes, electric string trimmers work very well. In addition to being less noisy, we like the benefit of not having to work with messy gas. Note, electric string trimmers are not as powerful as gas trimmers. If you don’t have routine difficult or thick weeds to worry about, an electric string trimmer is more than enough for the job.

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Ray Prince

Diehard UFC/MMA fan and all-around techie who loves to write.

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