The Best String Trimmer Lines - 2021 Reviews
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Best Trimmer Line: 5 Products to Help Keep Your Yard Looking Its Best

String trimmers are fantastic tools to keep your yard looking spick and span. But eventually, you’ll have to replace that string line. We have sifted through the market to bring you the best weed eater lines available right now.

Below, you’ll find our in-depth reviews and tips for picking the trimmer line that works best for you.

Backyard Boss Top 5 Trimmer Lines for Your String Trimmer

PRODUCT FEATURES
Husqvarna Titanium Force - Best Trimmer Line: 5 Products to Help Keep Your Yard Looking Its BestHusqvarna Titanium Force
  • Length: 140 Feet
  • Diameter: 0.095 Inch
  • Shape: Round
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Arnold Maxi Edge - Best Trimmer Line: 5 Products to Help Keep Your Yard Looking Its BestArnold Maxi Edge
  • Length: 100 Feet
  • Diameter: 0.095 Inch
  • Shape: Six-Sided
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Oregon Magnum Gatorline - Best Trimmer Line: 5 Products to Help Keep Your Yard Looking Its BestOregon Magnum Gatorline
  • Length: 685 Feet
  • Diameter: 0.095 Inch
  • Shape: Square
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LoNoiz - Best Trimmer Line: 5 Products to Help Keep Your Yard Looking Its BestLoNoiz
  • Length: 315 Feet
  • Diameter: 0.130 Inch
  • Shape: Spiral
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Cyclone Desert Extrusion - Best Trimmer Line: 5 Products to Help Keep Your Yard Looking Its BestCyclone Desert Extrusion
  • Length: 315 Feet
  • Diameter: 0.155 Inch
  • Shape: Six-Bladed
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Why You Can Trust Us

We’ve eaten our way through a number of string trimmer lines and have had the chance to test various products. We know they can be annoyingly loud, fail to cut through even the thinnest weeds, or disappear more quickly than ice melting in the Arizona desert. We don’t want you to experience this kind of frustration when you’re trimming your lawn. Hence, we’ve piled all our experience into this review, and we’ve supplemented it with thorough research.

Best Overall Trimmer Line

Husqvarna Titanium Force
    The Husqvarna Titanium is our top choice because it's quiet, lasts longer than other lines, yet can cut through weeds, and will fit all standard trimmer heads. A great choice for almost any homeowner.

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This round, smooth, .095 inch line allows for fast acceleration, good balance, and reduced fuel consumption. It also is quiet, yet has the ability to cut through a variety of small and medium materials quickly and without line waste. Considered “titanium” (it’s not metal, it’s nylon) because of its patented design and strength, this is a top-rated product that comes out on top year after year.

Despite its higher comparable price, it wears slowly and lasts longer than many other lines on the market, making it a product many people go back to time and again. Made to fit all standard trimmer heads, be sure to check the size will fit your feeder, especially if you have an electric or cordless version.

Who Should Buy It: This is a great line for any homeowner. The line can handle the easiest of jobs with practically no wear but yet can also deal with any medium materials that get in the way. Since it can feed into just about every trimmer head, it makes it a versatile, strong replacement line.

Best Trimmer Line for Small Yards

Arnold Maxi Edge
    Pick this product if you're looking for a long-lasting trimmer line that can occasionally cut through weeds.

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The Arnold Maxi Edge, .095 inch, trimmer line is a top-rated favorite for yard owners everywhere. Durable and lasting, it fits practically every electric, cordless, and gas-powered model doesn’t add any unnecessary weight to bog down your engine, and it provides the extra needed strength to get at more than just fine grasses and weeds.

Toted as easy to wind and feed, this seems to be a go-to for general lawn and yard care year after year and is a replacement line that doesn’t disappoint. Because of its diameter and smooth shape, this isn’t a line made to readily withstand hard surfaces or thick weeds and will wear and break easier than a larger cord. Stronger than a .065 line, but generally easy to feed into a trimmer that calls for a smaller line without binding, this is a good product and good value.

Who Should Buy It: This string trimmer line is best for small lawn and garden owners who need a durable replacement line for their string trimmer, but don’t have the worry of many thick or unruly weeds.

Best Trimmer Line for Overgrown Lawns and Tall Weeds

Oregon Magnum Gatorline
    The Oregon Magnum Gaterline's lastingness, combined with the sheer amount of product is sure to make it a favorite.

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As a medium-weight line, the .095 diameter of this trimmer cord can easily handle the many types of grass and weeds that grow up along your property, and yet is still small enough to feed through most string trimmers. Its square shape provides the extra grab needed for tougher material and has been compared in strength and durability to some of the larger diameters on the market.

A favorite amongst lawn and landscaping companies, this product not only gets the job done but also saves you both reloading time and money. Because of its smaller size, it can cut easily into softer materials along house sidings, decks, and garden borders, so it’s important to note that care should be taken around objects you don’t want to be marred in any way.

Who Should Buy It: The Oregon Magnum Gatorline is an ideal pick for commercial yard businesses and general landowners that have more than just a few small weeds and grasses to keep manicured but also isn’t up against any heavy brush or woody stems.

Best Trimmer Line for Big Jobs

LoNoiz
    This trimmer line can take a beating. It's durable, made with heavy-duty trimmers in mind, and yet quieter than other products.

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This spiral twist, grass trimmer line is built to take on the toughest of your weeds without breakage near and around hard surfaces. Because of its diameter, it also doesn’t have the destructive force up against house siding and decking that small cords do, in the case that you accidentally bump against something you shouldn’t.

To top it off – the noise reduction design allows a longer run time in heavily populated areas without driving your neighbors crazy or driving away business. Created for more durable string trimmer models, if the engine of your trimmer can handle the weight, and the head is supportive of the size, this is a good alternative line to use for general clean-up of your property if you happen to get some larger weeds or brush occasionally growing.

Toted also as a do-it-all type line, its size holds up to be cut to length without curl for windless alternative trimmer heads.

Who Should Buy It: The LoNoiz quiet trimmer line is a great line to purchase for anyone doing any kind of cutting that requires a more sturdy, long-lasting line, owns a heavier duty or walk behind trimmer, or simply is looking to cut their own windless, “pre-cut” lines.

Best Trimmer Line for Commercial Use

Cyclone Desert Extrusion
    Pick this pro-level trimmer line if you have a high wheel or gas-powered string trimmer and a large overgrown property to deal with.

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Created to fit most commercial high wheel (walk-behind) trimmers, this 6-bladed, nylon line boasts both strength and durability. The .155 inch diameter line is one of the largest on the market and is made to cut through anything in its path. Although it can fit some of the gas-powered hand models, be sure to check if it will feed correctly to avoid premature breakage or binding.

Because of its shape, it is very noisy, and you should definitely wear both ears, and eye protection (a good practice at all times anyway) when using it as it also easily kicks up any small rocks or other debris in its way, creating small projectiles, so use with care. With that being said, it seems to be a line that you cannot go wrong with if you have a lot that needs to get done and you want something that lasts. One roll of this stuff will practically last the life of your tool!

Who Should Buy It: The Cyclone line is a good buy for anyone who needs to replace the line for a walk-behind or is looking for something strong to fit in their high-powered gas hand trimer. Since it is designed for tough materials, if you don’t have thick weeds or brush to cut back, this particular string may be a bit overkill and not worth the extra cost since you would barely need to use any for light to medium duty work.

Are String Trimmer Lines All the Same?

No. All string trimmer lines are not the same. There are many brands on the market, including those that make fuel-powered, electric, and cordless models, and each has its own trimmer head from which the line is fed.

Many of these heads are similar enough in nature from one brand to the next that standard weed wacker line can be used from one make and model to the other, but attention needs to be paid to how the line is used, the shape, and the cord diameter (explained below), when making a purchase.
Which String Trimmer Line Size Is Best for the Job?
Weed trimmer line size is directly related to the size of the material you will be cutting. The larger the weed, the larger the diameter line you will be using. Smaller grass or weeds that fall into the 0.60-0.80-inch category will only need a fine line that falls into the 0.60-0.80-inch category.

Medium diameter weeds require a cutting line to be around 0.11 inches. Larger stuff, including small branches and thick brush, falls into the 0.15+ category.

The 0.15-inch lines are typically considered professional-grade and are manufactured not only for durability, but for long use, and are chosen for the industrial site, estates, and other large areas of landscaping.

That said, weed eater string sizes are an important consideration when determining your needs. You’ll want to check your string trimmers manual before you purchase a line to be sure of what size it is capable of handling. Most models can only handle up to a certain size.

Why Are There Different Line Shapes?

Six-Sided Trimmer Line

The shape of your line affects both its work capabilities as well as sound. There are four major shapes on the market, round, multi-sided, spiraled (twisted), and bladed (serrated) cords that exist to help you get the job done. Below is an overview of the most popular and the ones you will see while in your search for the perfect line.

Round Cords

Round cords are the most popular as they are almost every homeowner’s original default trimmer line. Falling into the small size category, this line generally can refill any model string trimmer, but isn’t made to withstand larger materials and will wear down more quickly in those circumstances.

Square Designed Line

The square designed line is geared towards the typical landowner that has some heavier weed whacking to take care of. It usually falls into the medium-sized line category and can take a beating against rocks and other hard objects.

Spiral Shaped Lines

Spiral-shaped lines are best in neighborhoods and other residential areas where noise ordinances exist, yet you need to get some major weeds knocked down. This is a line that falls in the medium-to-large-sized category, can take some rough wear, and keep working for you without raising a ruckus!

X-Shaped Code

X-shaped cord is designed for both homeowners and professionals and is designed to trim through the toughest of materials. Because of the shape and surface area, it is flexible and resistant to overheating resulting in a melt.

5- or 6-Sided Line

The 5- or 6-sided line can come in a variety of sizes and helps grabs grass and weeds more easily than a smooth surface, yet still feeds easily.

6-Bladed line

The 6-bladed line is generally always a professional grade line with a ribbed design to hold up to the most severe cutting jobs.

How to Choose the Best Weed Wacker String for You

Man trimming lawn around a tree.

Make Sure It Fits Your Trimmer

As mentioned, you should check your string trimmer manual before making any purchase. Many model heads can only feed up to a certain size line, and putting in anything else will only cause a lot of frustration on your behalf. If you have put in an aftermarket trimmer head at any point, you’ll need to check the manual for that instead as they generally are used in order to provide more versatility with a trimmer’s overall use.

Know What Type of Materials You Need Cut

Once you know what your model is capable of, to a quick walk around your property and look over the types of materials you need to cut. Generally speaking, a larger line will cut anything below it size-wise, but why spend the extra money if you are only going to be trimming up some grass and small weeds?

Take Into Account the Noise Factor

Also, take into account the noise pollution you will cause during your property maintenance. If you live where there are noise restrictions, consider buying a smaller, or shaped line, to reduce that distraction.

What Weed Eater String Alternatives Exist?

There are many replacement string trimmer heads on the market. Most are toted as universal, meaning they should fit just about electric, cordless, or gas-powered tools depending on their label. But be sure to read the information provided with both your string trimmer and the alternative you are considering to make sure it is compatible- since some can get rather pricey.

The majority of alternative trimmer heads are for gas-powered models (electric and cordless alternatives are, admittedly, hard to find) and include such things as simple, easy feed pieces, pre-cut line heads, and even stringless, heavy-duty blade replacements.

You’ll usually have to do a bit of taking apart and putting back together with many of these, but I’ve found, for the most part – the extra cost and time can be well worth the effort in the long run.

How We Picked

While we have our favorite product, we realize everyone’s yard has different needs, so we looked for a selection of lines that would be best for various situations. For all products we selected, we made sure they come with sufficient material to last you for the job at hand or even an entire season if you only need to use it occasionally. Once we trimmed off products that didn’t meet our quality criteria, we picked the ones best suited for residential or commercial use.

Picking the Best Trimmer Line for You

The overall goal is to find the best trimmer line for both your string trimmer model and your normal workload. Remember to always check your manual for standard string size, and take a walk around your property to check what kinds of materials you will be encountering during your normal maintenance.

Although all top five choices highlighted here provide a good overview of the top-rated types of trimmer lines on the market all are versatile and can be used in more than one model trimmer. Hopefully, our guide helps you pick the best one for you and your trimming jobs.

Our top pick is the Husqvarna Titanium Force String Trimmer Line. It is thick enough for major cutting ability, but thin enough to fit both residential and commercial weed eaters. Plus, it comes from one of the most trusted names in the industry.

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