There’s no doubt that weed eaters are some of the most useful gardening tools for anyone who’d like to keep their yard looking neat. However, these handy gadgets cannot function unless they’re equipped with the right trimmer line. Likewise, not just any other trimmer size will do. Usually, the thinner the line, the more it’ll struggle to push heavier brushes. Large lines work best when trimming heavy weeds and don’t usually break easily. The 0.155 size falls within this specific category meaning that it can be used for heavy work including taming thin woody brush. But wait – there’s more. In a world full of options, the last thing you want to do is end up with a faulty line. For this reason, our team experts have reviewed some top, budget-friendly choices to help you get the best bang for your bucks.

The type of line you use can make a big difference in terms of how effective your machine will be. So, when it all comes down to it, be sure to pick a line that allows you to work optimally so you can save more time, money and effort.

7 Best .155 Trimmer Line – Reviews

1. Cyclone Red CY155S3, 155-Inch-by-315-Foot Trimmer Line

Often ranked as the most popular of all trimmer lines of the .155-inch diameter, this proprietary grade trimmer line is the boost you need to trim thickly weeded areas. Made from high-quality reinforced copolymer nylon, this line holds up pretty well over time meaning you can use it to cut hundreds of feet of weeds and shrubbery with absolutely no risk of damage. Mainly available as a multi-sided line, this line is built to enhance cutting ability meaning it slices through small, medium and large yards like a hot knife through butter.

Last but definitely not least, this commercial-grade trimmer line comes with a whopping 315 feet worth of spool length which makes it incredibly versatile. Faced with some heavy commercial yard trimming work? This durable trimming line has the potential to do that job cleanly and without any hesitance.


  • Heavy-duty design which is suitable for commercial-grade work.
  • Built from high-quality, thick nylon.
  • It’s a multisided, therefore, ideal for thick weeds and brush.
  • Capable of delivering clean cuts.
  • Preferred by professional gardeners and landscapers.


  • Fragile when in contact with curbs, driveways and other hard surfaces.

2. Oregon 22-855 Magnum Gatorline Square String Trimmer .155-Inch

Are you a professional landscaper? Are you looking for a trimming line that will not disappoint you? Oregon Magnum Gatorline 22-855 is well constructed to meet the high demands of commercial heavy duty landscaping.

Designed to fit machines compatible with .155 inches diameter allowances, this powerful rope is versatile and, therefore, easy for most people to fit irrespective of the trimming machine of choice. What's more? This line is made from dual Polymer with reinforcements from Aramid fiber thereby making it quite powerful, durable and capable of trimming through overgrown bushes. On top of that, it has a 251 feet length which is just long enough to help you ace through arduous and complicated projects.

This line is square in shape. Oregon Magnum Gatorline 22-855 is ideal for cutting down thick, big weeds. The line remains intact when you hit rocks and trees. 


  • The length is considerably long at 251 feet.
  • long lasting.
  • Excellent for landscaping professionals.
  • Square shape.


  • The line is expensive.
  • Not ideal for light jobs.

3. Cyclone CY155D1-12 Commercial Trimmer Line 0.155-Inch by 105-Feet, Red

Does your job involve heavy duty trimming work? The good news is that there is a trimming line manufactured with the specifications to suit your yard needs.

Cyclone CY155D1-12 Commercial Trimmer Line is red in color and manufactured from Copolymer Nylon. This line has a 6-bladed shape for increased performance. The trimming line is designed for landscaping professionals.

The Co-polymer and Nylon material make this line strong and durable. The line is compatible with all trimmers that use .155 inches diameter trimming line. Because the line lasts long, it saves you a lot of reloading work.


  • Six-bladed shape for increased cutting power.
  • Co-polymer and Nylon formulation for strength and durability.
  • Color red is visible and can be seen during trimming.
  • It is ideal for heavy-duty commercial jobs.
  • The line is affordable.


  • At 105 feet length, this line is short.
  • Noisy.

4. Craftsman 71-85906, High Wheel Trimmer Line .155 XQ 85'

Are you looking for a commercial grade trimming line? Craftsman 71-85906 High Wheel Trimmer Line is made in the USA and designed to work in high wheel trimmers. The line is red in color and spiral shaped. The spiral shape gives the line a high-performance power, thereby trimming heavy and thick landscapes easily.

The shape also enhances the durability of this line and minimizes equipment vibration. In addition, the spiral shape makes the trimming line less noisy. The line is therefore ideal for use in places with a restriction on noise.

Using this line will see you working effectively because you will experience less fatigue due to minimal noise, fewer vibrations and few reloads.


  • It is affordable.
  • Less noise during trimming.
  • It is backed by the manufacturer’s lifetime guarantee.
  • A visible color.
  • Sufficient vibration absorption measures in place.
  • Strong and durable line.
  • Works in high wheel trimmers.


  • The length (85 feet) is too short.

5. Arnold Xtreme Professional Grade Trimmer Line .155-Inch x 109-Foot

Does your yard have a lot of heavy and thick bushes and weeds? Arnold Xtreme Professional Grade Trimmer Line is manufactured by Arnold Corporation, a company with over 50 years of experience in this business.

The line is twisted in shape and manufactured from the highest quality materials to enhance its performance and ensure it is durable. This line is suitable for heavy duty landscaping. The line reduces noise and also vibration in the equipment because of its shape.

The line is maroon in color and 109 feet, which are six refills. Therefore if you are looking at trimming efficiently with little weariness as a result of noise and vibration, then consider this line.

The package includes the trimmer line and a cutting tool.


  • It is very affordable.
  • Designed to work in walk behind edgers.
  • Cutting tool included.
  • Less noise.
  • Less vibration.


  • The length of 109 foot is short.

6. Oregon 22-455 Magnum Gatorline Trimmer Line .155-Inch

Are you shopping for a trimming line that gets hard landscaping jobs done while saving you time and money? Oregon 22-455 Magnum Gatorline Trimmer Line, a product of Oregon has special features to handle commercial heavy duty trimming work.

It is .155 in diameter and 85 feet long, weighing one pound. It is manufactured from dual polymer and aramid fibers. It has a square shape to improve its cutting performance. The outer layer has features that prevent tangling while the inner core is specially designed to resist breaking. The square shape gives this trimming line cutting power to bring down big and thick weeds. The line is strong and won't break easily even when it hits hard surfaces.


  • Very affordable.
  • Heavy duty trimming work.
  • Strong and durable trimming line.
  • Square shape.


  • The length of the line is short.
  • The color grey is dark and not visible.
  • Not ideal for light work.

7. Oregon 19-005 Gatorline Square String Trimmer Line Precut .155-Inch Diameter x 18-Inch Length 24-Piece Tube

Would you like a commercial grade trimming line that meets all your needs? Oregon Gatorline 19-005 Trimmer Line is specially designed for professional landscapers. The line is green in color. This trimming line is made from Co-polymer material. It is a big and thick line with a spiral shape which empowers it to do heavy landscaping work. The line does not break easily even when it hits rocks and trees.

The line does not get tangled, making it convenient to use the line. It is designed for easy loading into the trimmer because it is pre-cut and has 24 pieces. Each piece is 18 inches long.


  • Pocket-friendly.
  • Long-lasting.
  • Square in shape.
  • It has a visible color.
  • Pre-cut line and therefore easy loading, and no cutting.
  • No tangling.
  • Suitable for heavy duty landscaping work.


  • Overall, the line is short compared to other brands in the market.

What You Should Know About Trimming Lines

Have you found a trimming line that is perfect for your yard? There are many brands of trimming lines in the market. They are all different, with different prices and features. The main factor you need to consider is whether the diameter of the string is compatible with your machine and whether the trimmer line is universal and can work in your kind of machine whether it is electric, battery-powered or gas-powered.

The Buying Guide

Though you can use standard lines in your trimmer, special attention to the diameter of the line, shape, material used in making the trimmer will determine the effectiveness of the trimming line.

Trimmer line diameter size determines the kind of work it will be trimming. Large diameter lines like .155 inches are manufactured for large-scale landscaping. Tough work requires a large diameter line while smaller weeds require small diameter lines.

The shape of a trimming line determines its power as well as sound and vibration from the equipment. Four major shapes exist in the market, bladed(serrated), spiraled(twisted), multi-sided and round shapes.

Another important feature of trimmer lines is the material they are manufactured from. We have mainly Nylon, Co-polymer and Titanium materials. Nylon and Co-polymer are standard material and work well. Titanium is a new invention and an expensive option.

Using the right trimmer line that suits the size of your yard and can handle what is in your yard in terms of bushes, plants, grass, and weeds make you work efficiently.

Which One is Best for You?

Our best choice in this category of .155 diameter trimming lines is Arnold Xtreme Trimmer Line. Our next choice is the Craftsman 71-85906. It is then followed by Oregon Magnum Gatorline 22-855. The next choice is Cyclone CY155D1-12. We liked Oregon Gatorline 19-005 next and then Oregon 22-455.

Xtreme Professional Grade Trimmer Line is our top pick because it has a twisted shape making it able to deal with heavy and thick landscapes. In addition, it is green in color, which is a visible color. Besides that, the line is affordable. More importantly, using this line reduces noise and vibration from your equipment and therefore you will get less fatigued and able to work for longer hours. The trimming line is designed to work in walk behind edgers. What’s more, the package includes a cutting tool.

0.155 Trimming Line FAQs

Question: What determines how long my 0.155 trimmer line will last?

Answer: Durability boils down to the quality of the material used to make the line. The best material is copolymer nylon which is a specially designed variant of nylon that’s modified to be extra-resistant to torture.

Question: How do I find the right trimmer line diameter?

Answer: It’s important to check your trimmer’s line diameter to determine if it can handle your diameter of choice. Most low-end trimmers may not handle .155-inch diameter lines. That said, if your trimmer is designed for large yards, industrial landscaping or golf-course use, chances are that it would accommodate a .155 line. But be sure to confirm this before you make an order.

Final Thoughts

There may be many trimming line brands out there but these 7 options are what in our expert opinion qualify to be ranked as the best. So, if you’re looking to get maximum value for your money, you only need to visit the individual product pages on Amazon and take a closer look so you can make an informed choice. So, go ahead and grab the best .155 trimmer line and start delivering award-winning landscaping and gardening jobs today.