10 Best Trimmer Lines in 2021

Cyclone CY155S3 Grass Trimmer Line

Husqvarna Titanium Force String Trimmer Lines

Greenworks .065-Inch Single Line String Trimmer

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Being an owner of a property means that you need to take proper care of your property. Maintaining your property requires you to get a variety of tools to keep your yard in top condition. Maintaining a good-looking lawn or garden can be stressful, but if you have the right tools, it shouldn’t be difficult for you to overcome. There are various lawn maintenance tools, but if you need to mow down grass or weeds in a tight corner, then the best tool will be the string trimmers.

String trimmers are great for cutting high grass, edging, and other jobs. String trimmers work by whipping long and strong material (called a trimmer line) that cuts through the grass with so much ease and control. To efficiently get the job done, you need to get a string trimmer with a durable and high-quality trimmer line. However, trimmer lines tend to wear out as time goes on, and this is why you need to purchase large reels of them, but there are trimmer lines that wear out quickly, which means you will have to make frequent replacements and this can cause you to get frustrated while you are landscaping. The stronger the trimmer line, the higher the performance of the string trimmer; it is essential to purchase the best trimmer line that is available.

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To choose the best trimmer line, you need to familiarize yourself with the basics of the trimmer line. When you first see a trimmer line, it may seem like they are all the same. They might come in different packages and varying colors, but they are not capable of the same things. There are distinct differences between trimmer lines that determines their overall performance and functionality. This guide will take you through all the differences to give you the knowledge you need to make the right choice.


The size of a trimmer line determines the workload it can take on. If the line is too thin, it won’t be able to cut through adequately. The thicker a trimmer line, the harder the workload it can handle. The right line size also depends on the intended use of the trimmer; if you are cutting through thick grass, then a strong line is essential to prevent the breaking of the line during the job. The line must also fit into your string trimmer. If you intend on using the string trimmer for light work, then go for a line size between .065 – .080; if it is for medium volume jobs, then choose a trimmer line between .085 to .105 and choose a line size of about .110 inches to be able to tackle the overgrowth.

It is also essential to consider the size of the spool. If you use your string trimmer a lot, then getting a larger spool will last longer and be cost-efficient in the long run.


If you intend to take on challenging landscaping and trimming jobs, you should get a thick string line. The thicker the line, the higher the durability of the line. The thickness of the trim line also has an effect on the power and runtime of the string trimmer. If your string trimmer operates on a low voltage, it might struggle to keep up with a thick line. It best to stick to the string size recommended by the manufacturer as this will guarantee the best efficiency.


The shape of the line directly affects the cutting efficiency of the trim line. There are different types of line shapes: round, multi-sided, serrated, twisted, and square.

Round is the most common shape of trimmer lines. It is best for everyday use and can handle small jobs around your house. It is made for use in residential areas; it is easy to replace, and it fits through a lot of trimmers, but they do not handle heavy duty jobs very well. Their basic and standard shape means they last longer and can withstand breaking when they hit trees or concrete.

The multi-sided trimmer lines are best for landscaping. These lines have more than one side, and this lets them stay sharp for an extended period. If you have a large yard and thick bushes, then you should consider getting a multi-sided line. It comes with different sides, and these include the star, square, and pentagon. The square is the most common shape. Its multiple sides allow it to cut through thick grass fast and efficiently compared to other lines. The downside to this line shape is that it breaks when it hits stones, fences, and curbs.

Square shaped lines are great for cutting thick weeds because of its multiple sides, it is also thicker than the majority of the other line shapes, and this allows it to cut through grass and weeds in areas that are full of stones and trees. It does not break when it comes in contact with hard surfaces, making it a durable line. They can be used for residential use but are mainly used for professional service.

The twisted line shape is best for rugged commercial use and also for clearing gardens that have thick and heavy grass or weeds. They are stronger than the normal round-shaped line; they have improved efficiency over the other standard shapes. It also reduces the noise and vibration level of the trimmer, and they can also withstand impact with hard surfaces without any damage. They are best suited for electric and cordless string trimmers.

The serrated trimmer line has edges all around it, and they act as teeth when trimming. They are most used by professionals to clip yards. It is best suited for plats or weeds that are thicker than usual, and you have a large area to cover in a short time. The high trimming power of this line makes it suitable for medium and heavy trimming jobs. They leave you with a clean and neat trim.


String trimmer lines usually come in nylon because it is a cheap material that can remain strong. They are the most common trimmer lines you will find in the market. They are flexible, and they don’t snap easily, even though there is still a chance they will snap.

There are trimmer lines that are also made from titanium. Titanium is stronger and has a faster acceleration; it also reduces fuel consumption because it gets the job done faster. Titanium trim lines also have a quiet performance, and this is great when you are working long hours. Because it is high quality material, it also has a high price tag. Other heavy duty materials include internally reinforced nylon and aluminum additives.


If your trimmer line keeps breaking, you will have to keep replacing it frequently. Purchasing trimmer lines often means spending more money. Ensure you get a durable trimmer line. The more durable a trimmer line is, the more cost-efficient it will be. Read reviews online to figure out which trimmer line is stable.

There are different trimmer lines available in the market, and you might get confused about which one to choose. Do not worry, this buyer’s guide and product review will help you choose without any hassle.

Let’s check out the list.

The Best 10 Trimmer Lines Are Reviewed Below

Below, we have made a detailed review of the best trimmer lines available in the market. We have done our research, and we have listed the best products with their features and specifications to provide you with an in-depth knowledge of trimmer lines.


Cyclone CY155S3 Grass Trimmer Line

The Cyclone CY155S3 trimmer line is excellent for heavy duty tasks and it can also handle tedious cutting jobs. It is made from reinforced copolymer nylon that quickly cuts through shrubs and thick weeds with ease, and this makes it great for small, medium, and large yards. Professionals also use this trimmer line.

Thanks to the durability of this line, you can use it multiple times before needing to replace it. This line has multiple sides, which gives it a powerful cutting ability; it will cut through thick weeds without snagging. It has a thickness of .155 inches in diameter, and this helps prevent wear and tear even when you are using your trimmer at the highest speed.

Key Features:

  • 6- bladed shape
  • Proprietary commercial-grade copolymer nylon
  • Measures .155 inches by 315 feet


  • Brand: Cyclone
  • Model: Cyclone CY155S3
  • Weight: 3.6 pounds
  • Dimensions: 6.5 * 9.75 * 6.5 inches
  • Shape: Multi-sided star shape
  • Color: Red
  • It has a six-bladed shape that increases its cutting abilities
  • It has a high thickness
  • It is reinforced with several polymers
  • A commercial-grade trimmer line
  • It is a bit expensive
  • Its spool is shorter than other comparable string lines


Husqvarna Titanium Force String Trimmer Lines

Husqvarna is a well-known name in the tool making community; they are a trusted brand that has been making tools for decades. The Husqvarna Titanium Force is a great medium duty trimmer line with a diameter of .095 and an 800 feet spool. It is constructed from copolymer induced nylon that allows it to cut through weeds with ease. Its durability will enable you to trim for long hours before you need to change the trimmer line.

This trimmer line is capable of moving at extremely high speeds without bending; this trimmer line will make trimming any kind of shrub easy.

Key Features:

  • High cutting efficiency
  • Patented low noise lines
  • Faster acceleration, better performance, and level flight characteristics


  • Brand: Husqvarna
  • Model: Husqvarna Titanium Force String Trimmer Lines
  • Weight: 3.04 pounds
  • Dimensions: 10080 * 0.1 * 0.1 inches
  • Shape: Multi-edged star shape
  • Color: Orange/Grey
  • It is durable and long-lasting
  • It is a strong, medium-duty trimmer line
  • It is compatible with nearly all regular string trimmers
  • It is quite expensive
  • It can break if it hits a rock


Greenworks .065-Inch Single Line String Trimmer

The Greenworks Single Trimmer Line comes in a pack of three. They are .065 inches in diameter and a best suited for the Greenworks single line string trimmer. Tools are not needed to install this spool; you can just pop them in and out when you need a replacement. This spool os made majorly for Greenworks products, but it can also be used in other compatible brands. This spool has been prepared for you, meaning it has already been wound, so all you have to do is place the spool, and it will supply the trimmer on its own.

This trimmer line has its issues; it is thinner than other models and has the tendency to snap if it comes in contact with pavements or concrete sidewalks. It also has an issue of not unwinding properly.

Key Features:

  • .065 single line auto-feed
  • Tool-less installment
  • Wound spool


  • Brand: Greenworks
  • Model: Greenworks .065-Inch Single Line String Trimmer
  • Weight: 0.96 ounces
  • Dimensions: 3.2 * 2.6 * 2.5 inches
  • Color: Blue
  • It is long-lasting
  • It is compatible with other brands
  • It comes with a pre-wound spool
  • Tool-free installment
  • It is thinner than other trim lines and can break if it hits concrete
  • Sometimes the spool does not wind properly


Oregon 22-895 Magnum Gatorline Square Trimmer Line

The Oregon 22-895 Magnum Gatorline is made from reinforced nylon, allowing it to withstand wear and tear. It can cut through medium to thick weeds thanks to its .095 thickness that makes it strong. It comes in a spool of 685 feet that will serve you for a long time. This trimmer line is suitable for precise edging; it lets you achieve all the right angles by reaching into tight corners and making sharp cuts.

This trimmer line is popular among lawn and landscaping companies; it gets the job done and saves you reloading time. It can easily cut into soft materials, so make sure you are careful when cutting around objects that you don’t want marked.

Key Features:

  • High cutting efficiency
  • .095 inches diameter
  • High strength inner core prevents breakage
  • Square trimmer line


  • Brand: Oregon
  • Model: Oregon 22-895 Magnum Gatorline
  • Weight: 3.1 pounds
  • Dimensions: 8 * 8 * 9 inches
  • Color: Grey
  • It is extremely durable
  • It has a large spool
  • It is incredibly strong
  • It has great value
  • It doesn’t bind
  • It saves time on reloading
  • It can make dents on other soft materials, so be careful what you hit
  • It is not compatible with all string trimmers
  • It bends before it breaks
  • It unbalances easily


DEWALT DWO1DT802 String Trimmer Line

The DEWALT DWO1DT802 String Trimmer Line is reliable and efficient. It can deal with any trimming job around your home, and the DEWALT is known for its widely used aerodynamic trimmer line that improves cordless cutting power. This trimmer line is best suited for medium-duty jobs, but you can also use it for some heavy duty trimming tasks.

This trimmer line is made out of flexible, impact-resistant materials; it has a diameter of 0.080 inches and a spool length of 225 feet. All its features make it durable and suitable for different tasks, making this a convenient trimming line.

Key Features:

  • 225 feet long
  • The diameter of 0.080 inches
  • Made from flexible and impact-resistant materials
  • Aerodynamic design


  • Brand: DEWALT
  • Model: DEWALT DWO1DT802 String Trimmer Line
  • Weight: 9.6 ounces
  • Dimensions: 6 * 6.5 * 1.88 inches
  • Color: Brown
  • It is incredibly durable
  • It is affordable
  • It has a tough, wound design
  • It is compatible with Ryobi and Kobalt models
  • It makes light work when cutting grass
  • It is not ideal for commercial jobs
  • It is not compatible with a lot of string trimmers


Arnold .065-Inch Maxi-Edge Commercial Trimmer Line

The Arnold’s commercial trimmer line is compatible with both gas and electric string trimmers; it has a strong, consistent, and long-lasting performance. This trimmer line measures .065 inches in diameter with a height of 220 feet; it has up to 11 refills. The design of this trimmer line is a 6-sided star, which gives it a stronger effect on cutting grass and weeds.

The star shape of this trimmer line provides it with the versatility that allows it to trim around edges in your yard. This trimmer line is suitable for commercial use and also residential use. It has a long life span and is excellent for basic tasks around the yard. When using this trimmer line, be careful not to hit concrete repeatedly as it could make the line break. This line has a strong construction that will provide you with precise cuts.

Key Features:

  • .065 inches trimmer line
  • Fits most gas and electric string trimmers
  • 6-point star shape
  • Contains 11 refills
  • Height of 220 feet
  • Comes with a cutting tool


  • Brand: Arnold
  • Model: Arnold .065-Inch Maxi-Edge Commercial Trimmer Line
  • Weight: 5.6 ounces
  • Dimensions: 2 * 2 * 2 inches
  • Color: Blue
  • It is suitable for both gas and electric string trimmers
  • It has a star shape for improved performance
  • It can be used for styling
  • It is incredibly firm and hard to wind


MaxPower 333665 RoundCut Trimmer Line

The MaxPower 333665 is suitable for light chores around the yard. For a low price, you get a trimmer line that measures .065 inches in diameter and has a spool height of 1.800 feet. This trimmer line is made out of nylon and is very thin, which is why it can only be used in sparingly around the home. However, it is still strong enough to cut through light weed and grass.

It has a round shape, which means it rips up your trimming instead of slicing through it. It can do a sufficient amount of work before a replacement is needed; you can also use it to edge your lawn if you don’t mind a moderate precision.

Key Features:

  • Contains 90 refills
  • The diameter of .065 inches
  • Length of 1,800 feet
  • Made from nylon


  • Brand: MaxPower
  • Model: MaxPower 333665 RoundCut Trimmer Line
  • Weight: 5.04 pounds
  • Dimensions: 9 * 8 * 6.5 inches
  • Color: Blue
  • It has a low price tag
  • It is quite durable despite how thin it is
  • It can easily cut through light grass
  • It has a sufficient amount of refill
  • It is very thin
  • It is not ideal for commercial use


LoNoiz Desert Extrusion LN130MSP Commercial Trimmer Line

The LoNoiz LN130MSP Commercial Trimmer Line is one of the best trimmer lines for commercial use. This trimmer line is popular because of how quiet it is. It is constructed from sturdy copolymer induced nylon, and it is known as one of the toughest trimmer lines in the market. It is great for a commercial landscaper; it measures .130 inches in diameter and has a spool height of 445 feet.

It can be used on thick weeds and grass. This trimmer line is incredibly durable and long-lasting, it can easily cut through thick weeds, and thanks to how quiet it is, you won’t be disturbing anyone with noise. It has a serrated, spiral shape that makes quick work of heavy duty jobs.

Key Features:

  • 0.130 inches in diameter
  • 455 feet long
  • Made from copolymer formulation
  • Optimized spiral shape


  • Brand: LoNoiz
  • Model: LoNoiz Desert Extrusion LN130MSP Commercial Trimmer Line
  • Weight: 5.5 pounds
  • Dimensions: 7 * 14 * 6 inches
  • Color: Black
  • It is a great commercial trimmer line
  • It is quiet compared to its counterparts
  • It has an efficient spiral shape
  • It is not compatible with some string trimmers
  • It is not the most durable trimmer line available in the market



This trimmer line is made to handle tough weeds without breaking around hard surfaces. It features a noise reduction design that allows you to use the string trimmer for a long time without disturbing your neighbors. This trimmer line is suitable for durable string trimmers; if the engine of your string trimmer can withstand the weight and the head can support the size, then this is a great trimmer line to use for the trimming of your yard, especially if you have large weeds growing.

Key Features:

  • Noise reduction design
  • Advances spiral shape
  • Commercial quality
  • .130 inch diameter
  • 150-foot spool


  • Brand: LONOIZ
  • Weight: 13.6 ounces
  • Dimensions: 2 * 9.7 * 8.1 inches
  • Color: Black
  • It has decreased noise
  • It is long-lasting and tough
  • It feeds properly
  • It is very thick
  • It does not cut as precise as a trimmer line with a smaller diameter


Tanaka 746570 Quiet Trimmer Line

The Tanaka 746570 Trimmer Line is great for light to medium duty jobs. It measures 0.095 inches in diameter with a roll of 230 feet. It is constructed out of copolymer induced nylon, which makes it sturdy and strong. It can cut through thin weeds, medium thick weeds, and heavy thick weeds. It is excellent for residential use and also for commercial use on small and medium sized yards.

An added feature of this trimmer line is that it is very quiet when spinning, but it is not as durable as other trimmer lines on this list; it breaks easily when it deals with incredibly thick weeds. If you are a homeowner in need of a trimmer line for occasional clean up of your yard, this trimmer line is perfect for your needs.

Key Features:

  • Reduced noise by 50 percent
  • 230 feet of line
  • .095 inch diameter
  • Commercial grade copolymer trimmer line


  • Brand: Tanaka
  • Model: Tanaka 746570 Quiet Trimmer Line
  • Weight: 15.2 ounces
  • Dimensions: 8.2 * 8.1 * 1.7 inches
  • Color: Black
  • It easily cuts through thin and thick weeds and grasses
  • It is affordable
  • It is amazingly quiet when in use
  • It is not ideal for heavy commercial use
  • It is not as durable as other high-end trimmer lines

Buying Guide Questions

Is thicker trimmer line better? What is the toughest trimmer line?

String trimmer lines come in a variety of thicknesses. The thickness of the trimmer line you get depends on the intended use; for light work such as trimming grass, you can get a trimmer line with a diameter of 0.065 inches to 0.085 inches. For thick grass and weeds, get a line between 0.085 inches to 0.110 inches, and for a thicker underbrush, anything under 0.110 will be sufficient.

Our top pick, which is the Cyclone CY155S3 Grass Trimmer Line, is known to be the toughest trimmer line available.

What is the best .080 trimmer line? Who makes the best string trimmer line?

According to reviews, the DEWALT DWO1DT802 is the best .080 trimmer line. It is made from flexible, durable materials that maximizes its cutting efficiency.

The different brand have their different products with their features and benefits; this makes the best string trimmer differ from user to user. There are popular brands with their string trimmer lines, and they all have their upsides and downsides. Brands like Cyclone, DeWalt, Black & Decker, Oregon, and Husqvarna all make durable timmer lines.

Is square trimmer line better than round? Which is better Stihl or Husqvarna trimmer?

The round trimmer line is smooth and is slow to wear down, but most of the cutting of the round shape happens at the tip, so when it comes in contact with concrete or trees, it can break off. The square trimmer has four sharp sides that cut faster and more efficiently, and they are less likely to break if they hit a tree, but the risk is still there.

Stihl and Husqvarna are well-known brands, but choosing between them depends on preference.

What size line does my Stihl trimmer use? Why does my line keep breaking on my trimmer?

The basic line size that a Stihl trimmer uses is 0.105 inches in diameter, but you can also use the 0.095-inch trimmer line. Some versions of the AutoCut use 0.080 inches to 0.095 inches trimmer line. Ensure you check the user manual to know which trimmer line is compatible with your Stihl string trimmer.

The most common cause of breaking in a trimmer line is how long it has been used. If your trimmer line is more than five years old, then you need to replace it. If your trimmer line tends to break often, then try using a new round line. The square and star-shaped lines usually wear faster.

What does the R mean on Stihl trimmers? What is the best Stihl trimmer?

There are symbols on the Stihl trimmer that helps you identify model features. C=comfort feature, E=easy2start, R= loop handle and X= lightweight version.

There are different models of the Stihl trimmers, but the most popular one is the Stihl FSA 56.

What does FS stand for Stihl?

The Stihl model names are abbreviations for their german names. FS stands for Freischneider.

Does trimmer line go bad?

Yes, trimmer lines go bad, the line gets brittle and breaks. Some users have said putting it in water and keeping it out of the sun can preserve the line.

How do you fix trimmer line? How long should a trimmer last?

A residential trimmer should last at least 3 to 5 years and 15 to 20 years for commercial trimmer used in a residential setting. How long your trimmer lasts depends on the durability of the trimmer itself.


The intended goal of this guide and review is to find the best trimmer line for your string trimmer model and your regular workload. It is essential to check your manual for the standard string size and also keep in mind the kind of materials the line will be coming in contact within your yard.

With these options we have provided, it should be easy for you to choose the trimmer line that meets your needs. Just make sure the specifications match that of your trimmer.