The Best String Trimmer for Edging

Even a well-mowed lawn can seem irregular and unkempt if you don’t trim or edge the grass and shrubs. Edging is an indispensable aspect of lawn grooming and maintenance, and even your driveway as well as the pavement around the house could use some trimming or edging if there are shrubs or weeds growing nearby.

In order to clear your lawn and driveway of all unnecessary weeds and shrubs, you need to get a good string edging machine. These machines are shaped like vertical hand-held vacuum cleaners, and chop grass, shrub, and weeds by spinning a plastic string at extremely high speeds.

Need the best string trimmer for edging? Take a look at the 4 best electric string trimmers on the market, arranged below in order of their popularity and overall performance. Each one of these machines has been selected after careful analysis of their features, build quality, and ease of usage. Choose the one that fits your budget and needs.

Black+Decker Lithium String Trimmer

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The BLACK+DECKER LST136W is equipped with a powerful brushless electric motor, and is fed by a 40 V Li-Ion battery back that sits snugly in the back of the machine. This is a rear-mounted design, and aims to perfectly balance the weight distribution across the length of the trimmer, and allows even the most inexperienced users to handle this powerful machine with ease. Since this is a cordless type, you can conveniently trim all the annoying bushes and long grass without having to worry about dragging a power cable behind you.

It’s electric, so you benefit from the clean, emission-free performance, and the noise levels are really low as well, thanks to the brushless motor that generates just as much torque as a small gas engine, minus the maintenance. There is a special PowerDrive transmission installed in the shaft, which conveys more power from the motor to the trim head when compared to a conventional transmission shaft.

The straight shaft is both elegant looking, as well as extremely effective for trimming tight spaces and pavements, since it is much easier to angle the string trimmer by using the tilt-capable shaft head. There is a thick guard on the trim heads which is designed to stop the trimmer from causing any damage to property, or to your feet. An automatic spool system allows you to focus more on trimming, and less on replacing the nylon threads.

GreenWorks Corded String Trimmer

Greenworks 4 Amp 13' Corded Electric String Trimmer
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If you want a string trimmer that is inexpensive, runs smooth, and is easy to handle, then get a GreenWorks 21212. It manages to keep costs low by incorporating a corded design, which means that you’ll need to plug it into an electric outlet if you want to trim your lawn or driveway. But it also means that there won’t be any refueling or recharging.

As long as you have a small area to work with, you’ll have absolutely no problems with using one of these, since it is much lighter and easier to operate than a gas-powered string trimmer. The 4 amp electric motor utilized in this machine is rear-mounted and extremely powerful when you consider the cost of this machine.

The threads and trim head are built to deliver a 13″ cutting path for faster trimming, and the head comes with a .065 dual line auto thread feed system. The auxiliary handle is height-adjustable for maximum ease of usage, and using this trimmer is extremely easy. Just take it out of the box, plug it into a wall outlet, and pull the trigger to begin trimming.

Toro Corded 14-Inch Electric Trimmer/Edger

Toro 51480 Corded 14-Inch Electric Trimmer/Edger
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If you wish a slightly larger cutting path, and wish to stick with a corded electric design, then the Toro 51480 might be worth a look up. It features an extra-wide 14″ dual line cutting path for extremely efficient and error-free trimming. There are two nylon lines per side, as opposed to the single line that you’ll find on most other models. This allows you to ensure a more even and through trim with each rotation of the motor, since each of the nylon strings hits the grass blades twice per rotation.

The easy-tilt trim head can switch from trimmer to edger mode within seconds, since all you need to do is reach down and flip the head into a perpendicular position. The motor is front-mounted and although this design may make it a little too heavy towards the front, the ergonomic height adjustable handle compensates for that effect. And as long as you don’t need to trim or edge a large area, this trimmer will not strain your back. With a 5 amp motor, you’ll be done with trimming and edging your lawn in no time at all.

DeWalt Lithium Ion XR Brushless String Trimmer

DEWALT 20V MAX* XR String Trimmer, 13-Inch, Tool Only (DCST920B)
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Dewalt is known to manufacture high-performance lawn maintenance equipment, and their DCST920B is no exception. It is one of the best cordless string trimmers in the market, and features an efficient, functional design that allows you to effortlessly trim or edge your lawn within minutes. The straight shaft lets you reach small spots underneath plants and bushes, and the 90 degree tilt-head can easily switch between trimmer and edger modes within seconds.

If you’re accustomed to halting mid-work to swap worn out strings, then you’re going to love the bump-feed spool design which will let you snap in a new thread within seconds. The thick .080″ line is heavy and can cut through the thickest of grass and shrubs. This machine features a brushless motor, and a 13″ cutting path. It is powered by a single 20 V rechargeable lithium ion battery-pack.

Choosing the Best String Trimmer for Edging

A string trimmer consists of 3 main parts – the motor, the shaft, and the trim head. Motors can be either gas-powered, or electric. Gas powered motors can be further divided into 2-stage and 4-stage gas motors. Electric motors can be divided into brushed and brushless types. Drive shafts are the rods that connect the motors to the spin heads, and can be either straight or curved.

Some string trimmers come with font-mounted designs, in which the motor is mounted right on top of the string head. These trimmers are heavier towards the front, and are harder to control and manage. If you’re looking to buy your first string trimmer, or just want something that will be easier on your back, try to get a well-balanced trimmer, with the weight evenly distributed across the body.

You should also prefer a curved shaft over a straight one if you’re primary goal is to trim small areas such as your lawn or backyard, since curved shafts don’t require you to bend as much, meaning that your back will feel much better after a trimming or edging session.

The Best String Trimmer for Edging
As far as motors are concerned, electric types are the best for small scale trimming and personal use. If you have a small-medium sized lawn, or just want to clear the weeds and grass from your driveway or pavement, the electric string trimmers will do the job just fine. Gas powered models are usually better for large scale work, for areas larger than 1 acre in size. They are more powerful than their electric counterparts, although the modern brushless electric trimmers can match some low-end gas models in terms of speed and torque.

Gas powered models are cord-free and need refueling every 30 minutes to 1 hour, depending on your usage. Cordless electric models are your best bet when you don’t have a well-placed electrical outlet on the front of your home, or if you can’t reach all the edges of your lawn with a corded model.

Cordless electric trimmers will be just as heavy as gas operated ones, but are much easier to operate – no cord pulling, no priming, no oiling, no refueling, and no noise. Well, there will be noise when the nylon strings cut through the grass, but at least you won’t have to wear ear protection like when you operate a gas-powered trimmer.