Why Does My Trimmer Use So Much Line?

Compared to your string trimmer, its lines are the cheaper investment you make. However, if you don’t go for the right one, it’ll become a hassle for you. Trimmer strings come in hefty reels, so if you find yourself running out of them sooner than expected, your line may have a problem. You might find your trimmer using more lines than usual. 

Generally, your trimmer uses too much line if the line isn’t of good quality. You may also not have the right fit. You should check the manufacturer’s recommended line size. Lastly, you may be using the wrong type of line for your intended work area, such as lightweight lines around hard surfaces. 

In this article, you’ll find the potential reasons why your string trimmer has been using too much line and what you must do to fix it.  

3 Reasons Why Your Trimmer Uses Too Much String

The “line” refers to the monofilament string attached at the end of your trimmer. When it spins, it generates a centrifugal force that makes it appear as a “blade” and cuts through greens.

If you feel like your trimmer goes through more lines than it’s supposed to, here are a few reasons why that could happen:

1. Poor Quality Line 

Buying the cheapest option at the store is the first mistake many make.

Your line should be from a reputable brand or of high-quality material. Low-cost lines aren’t as durable or long-lasting as higher-end ones. They may be weaker, thinner, or made of substandard material. 

Note: Regardless of quality, your line is bound to become brittle after it’s more than 5 years old or has had extensive sun exposure. Be sure to replace it if that’s the case.

2. Wrong Thickness & Weight

Every manufacturer recommends a range of thicknesses for your trimmer’s line.

In the market, lines are generally found for measurements of 0.05 to 0.2 inches. 

Line thickness Category
0.05 to 0.08 inches Lightweight-medium sized
Beyond 0.08 until 0.105 inches Medium-heavy sized
Anything above 0.105 inches Very heavy duty

If you’re using a line on the lower end of the recommended range, it’ll break more often. On the other hand, using one beyond the maximum value will give you poor cutting performance. It is true, however, that the thicker the line, the higher its resistance. 

So try out a number around the midpoint of your size range to see how well that works for you.

3. Contact With Hard Surfaces

The area you’re working on will also determine the longevity of your line.

Those who only work on open lawns will probably use the least amount of line. Because without any hard areas such as patios, steps, and other solid arrangements, their string trimmer only comes in contact with breakable material such as twigs, small stones, etc. 

A line that constantly hits tough surfaces will wear out or snap off. It isn’t built to endure such hard impacts. If your line is poor quality, old or lightweight, it’s bound to break.

So if you’re someone that puts too much pressure around hard surfaces to get the job done, tone it down to make your line last longer.

If you intend to work in areas with trees, fences, or hard surfaces, you should use a suitable string. Going for the heavy-duty number your manufacturer allows might make your string last longer.

3 Best Trimmer Lines To Try Out

Finding the right fit for your string trimmer can be tough, especially if you have never paid attention to this before. Here are 3 options that are up to standard in my opinion:

# Line Model Features
1. OREGON: 22-855 Magnum Gatorline
2. OREGON: 21-380 Gatorline
3. A ANLEOLIFE: 5 Pound Orange Line


How Long Should a Trimmer Line Last?

On average, your trimmer line will last anywhere between three months to six months if you’re cutting weeds every week. A higher quality line will last you longer. It’s also recommended to avoid leaving your line in the sun for too long. You can soak it in water every now and then to increase its life as well.

Is a Heavy-Duty Line Better Than a Lightweight One?

Generally speaking, yes. But with the condition that it’s suited for your string trimmer. Lightweight lines will break off easier than heavy-duty lines. But if your trimmer isn’t strong enough to handle said lines, it will only result in subpar cutting performance. 

Can You Use a Pack of Line That’s a Few Years Old?

It is recommended to replace your line reel after 5 years because it’s possible that it’s gone bad. Technically, how fast a line becomes brittle depends on the environment it was left in. So if your shed isn’t in the best state, you might want to replace the old reel you found.

Why Are Round Lines Regarded as Better Than the Rest?

There are a few reasons for that. Round trimmer lines are more durable, especially near hard surfaces. This gives them a longer life, and once you’re ready to change them, they’re easier to replace than the rest.

Final Thoughts

Figuring out how to get the most out of your yard tools can be tricky. Some mistakes are harder to pinpoint than others, such as using the wrong line for your trimmer. If you’ve been scratching your head noticing the amount of line your trimmer’s been eating, now you know what the problem may be and how to fix it. 

Peter Toth

Hi! I'm Peter, the owner of BackyardGadget. Working around the house has always been a big part of my life. I've created this site to share my experience, and to help people choose the right tools for the job. Thank you for stopping by!

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