How To Use A String Trimmer To Mow A Lawn?

Mowing the lawn can be tedious and time-consuming, but it doesn’t have to be. Using a string trimmer, you can reduce the time and effort it takes to maintain a healthy, attractive lawn.

String trimmers are versatile tools that can be used to trim and shape around the edges of a lawn and mow the entire lawn. So, how can you use a string trimmer to mow lawn?

In this article, you will learn how to use a string trimmer to mow your lawn, so you can get the job done quickly and effectively.

Can You Use A String Trimmer To Mow Lawn?

A string trimmer is a versatile tool used for various outdoor tasks, including trimming around trees, bushes, and other hard-to-reach places with grass, weeds, or other vegetation. While string trimmers are typically used to trim and edge, they can also be used to mow a lawn. Although it may not be the most efficient way to mow a lawn, it is possible to use a string trimmer to get the job done.

To use a string trimmer to mow a lawn, ensure the string trimmer is properly equipped with the proper line size and shape for the job. Choose a line size that is suitable for the area to be cut, as well as the type of vegetation that needs to be cut. The line size should be thick enough to cut through the vegetation but not too thick to cause damage to the lawn.

When the line size and shape have been chosen, it is important to adjust the trimmer head to the correct cutting height. A cutting height of two to three inches is recommended for most lawns.

Once the trimmer is properly adjusted, begin mowing in straight lines. Move the trimmer in overlapping passes to ensure all areas are cut evenly for the best results. If the lawn is particularly large, it may be helpful to break the job up into sections and tackle one section at a time. To keep the lawn looking even, it can be helpful to use a straight edge to check for any missed or uneven patches of grass.

When mowing with a string trimmer, it is important to take safety precautions. Wear safety glasses, hearing protection to protect against flying debris, and long pants and closed-toed shoes for protection against the trimmer line. In addition, make sure to keep the trimmer line away from any objects that could be damaged, such as trees, fences, and flower beds.

Using a string trimmer to mow a lawn is a great way to finish the job quickly and efficiently. With the proper preparation and the right line size and shape, a string trimmer can be a helpful tool for keeping a lawn looking neat and tidy. However, taking safety precautions and being aware of any potential dangers when using a string trimmer is important.

Types of String Trimmers

Types of String Trimmers

Choosing the right string trimmer is the first step to mowing a lawn. There are several string trimmers to choose from, each with unique features and benefits.

  1. Gas-powered string trimmers are the most powerful option, offering the highest cutting power and speed. They are also the most expensive and require regular maintenance, such as changing the oil, spark plug, and air filter.
  2. Electric string trimmers are the most popular option, offering adequate cutting power and speed at a lower price point. They are quieter and easier to maintain than gas-powered trimmers.
  3. Cordless string trimmers are the most portable option, but their cutting power and speed could be better than gas or electric models.

Choosing The Right String Trimmer

When it comes to choosing the right string trimmer to mow your lawn, it’s important to consider a few key factors. Here are some tips to help you make the best choice:

  • Determine the size of your lawn. If you have a small yard, a cordless electric or corded electric string trimmer may be all you need. However, if you have a larger lawn, consider a gas-powered trimmer that can handle tougher jobs and provide longer run times.
  • Look for a trimmer with adjustable cutting heads. This will allow you to easily adjust the height and angle of the trimmer to reach different areas of your lawn.
  • Consider the weight and ergonomics of the trimmer. Depending on the size of your lawn, you may be using the trimmer for extended periods. Look for a model that is lightweight and comfortable to hold, with easily accessible controls.
  • Check the line feed system. Some string trimmers have an automatic line feed system that releases more lines when needed, while others require manual adjustment. Decide which system will work best for you based on your experience level and the trimming you’ll be doing.

Choosing the right string trimmer will depend on your specific needs and preferences. Do your research and read reviews before purchasing to ensure you get the best product for your lawn.

Preparing The Lawn For Mowing

Preparing the lawn for mowing is an important step before using a string trimmer to mow a lawn. Before beginning, it is important to ensure the area is free of debris and rocks, as these may clog or damage the trimmer. The area should also be cleared of any objects or furniture that may be in the way of the trimmer.

Additionally, it is important to check the height of the grass and reduce it if necessary. To do this, use a mower and reduce the grass to a height of two inches or less. This will help the string trimmer work more efficiently, reducing the grass needed to cut.

Setting Up The String Trimmer

Setting Up The String Trimmer

Using a string trimmer to mow a lawn is a great way to get a precise, clean edge around garden beds, trees, and other structures. Setting up the string trimmer correctly is essential for a successful mowing job.

First, identify the type of string trimmer you have. There are two main types, gas-powered and electric-powered. Ensure the gas and oil are filled appropriately for a gas-powered string trimmer. Additionally, check that all parts are securely fastened to the trimmer. If the spark plug wire is disconnected, attach it securely. For electric string trimmers, ensure the power cord is plugged in and the safety switch is in the “on” position.

Next, assemble the string trimmer. Most string trimmers come with an adjustable handle that can be adjusted to your height and comfort. Ensure the handle is securely fastened, and the safety switch is in the “on” position. Once the handle is securely fastened, attach the trimmer head and string. Ensure the trimmer head is securely fastened and the string properly threaded through the head. If the string is not properly threaded, it can cause damage to the trimmer, or the string can become tangled.

Mowing Techniques And Tips

Mowing your lawn can be tedious, but it doesn’t have to be. The right mowing techniques can make the job easier and more enjoyable. A string trimmer is a great way to mow your lawn quickly and efficiently. Here are some tips to help you get the most out of your string trimmer and make lawn mowing easy and enjoyable.

  • First, ensuring you are using the right type of string trimmer for the job is important. There are two types of string trimmers: electric and gas-powered. Electric trimmers are great for small lawns, as they are easy to maneuver and don’t require much maintenance. Gas-powered trimmers are better for larger areas, as they are more powerful and can handle tougher jobs.
  • Second, it’s important to correctly set the string trimmer’s height correctly. Lower the trimmer to its highest setting so the cutting line is parallel to the ground. This will ensure that the grass is cut evenly and won’t leave any uncut patches.
  • Third, wear appropriate safety gear when using a string trimmer. Safety glasses, long pants, and long-sleeved shirts are a must. This will protect you from flying debris and keep you safe.
  • Fourth, cut the grass in small sections when you are ready to start mowing. Start at the edge of the lawn and work your way in. This will help you control the trimmer and ensure you don’t miss any patches.
  • Finally, be sure to keep your trimmer clean and well-maintained. After each use, thoroughly clean the trimmer and check for any damage. This will help keep it in good working condition and ensure it runs smoothly.

Maintenance Of The String Trimmer

Maintaining a string trimmer is important in keeping your lawn looking its best and avoiding costly repairs. Proper string trimmer maintenance can help extend the machine’s life and save you money in the long run. The following are a few tips to keep your string trimmer in top condition:

First, always check the oil level before each use. Low oil can cause the motor to overheat and fail. If the oil is low, add the correct amount and type of oil as specified by the manufacturer.

Second, make sure to keep the filters clean. A clogged air filter can reduce airflow to the motor and cause poor performance. Clean the air filter after each use.

Third, inspect the spark plug to ensure it is in good condition. If it is worn or damaged, replace it. A bad spark plug can cause the engine to misfire or not start.

Fourth, use a quality fuel mixture. A mixture of fresh gasoline and oil is essential for proper performance. Follow the manufacturer’s instructions for the correct ratio of fuel to oil.

Fifth, sharpening the line is important for optimal performance. When the line becomes dull, it won’t cut as efficiently, resulting in poor results. Replace the line when it becomes dull and sharpen it regularly.

Finally, inspect the safety features of the string trimmer. Ensure the safety guard is in place and the machine is functioning properly. Also, check the cord for any frays or breaks.

Safety Precautions For Mowing With A String Trimmer

Safety Precautions For Mowing With A String Trimmer

When mowing with a string trimmer, taking a few safety precautions is important to keep yourself and others safe. Here are some tips to keep in mind:

  • Wear protective gear: Always wear protective gear like eye and ear protection, long pants, close-toed shoes, and gloves.
  • Check the area before starting: Make sure the area you’ll be mowing is clear of any obstacles like rocks, sticks, or debris that could get caught in the trimmer head.
  • Keep the guard on: Always keep the guard on the trimmer head. This will help prevent debris from flying up and hitting you or bystanders.
  • Keep an eye out for others: Be aware of others around you, including pets and children. Ensure they stay a safe distance from the area you’re mowing.
  • Use the trimmer correctly: Follow the manufacturer’s instructions for using the trimmer. Never use it above chest level or aim it toward your legs or feet.

Identifying And Avoiding Common Problems

Using a string trimmer to mow a lawn can be a great way to groom your lawn and keep it looking neat. However, there are a few common problems that you should be aware of to get the most out of this tool.

The main issue you should be aware of is the risk of over-trimming. This occurs when the string trimmer cuts too close to the grass, causing it to become weak and discolored. Keep the string trimmer at least two inches away from the grass to avoid this.

Another common problem is a lack of uniformity. When using a string trimmer, it is easy to miss some areas or cut other areas too deeply, resulting in an uneven look. To ensure uniformity, you should mow consistently, overlapping each pass by a few inches. This will ensure that all areas are evenly trimmed.

It is also important to know how much power you use when using a string trimmer. While it is tempting to crank up the power to get the job done faster, this can result in excessive damage to the lawn. Instead, you should use the lowest setting necessary to get the job done and be extra careful around the edges.

Finally, it is important to keep the string trimmer in good condition. This includes replacing the strings regularly and ensuring the blades are sharp. Dull blades are more likely to cause damage to the grass and can even result in injury. Maintaining the string trimmer will ensure that it is in good working order and will help you get the most out of your lawn-mowing efforts.

Troubleshooting Issues With The String Trimmer

If you’re having trouble with your string trimmer, you can try a few things to troubleshoot the issue before taking it in for repair. Here are some common problems and solutions:

  1. The string won’t advance: Check to see if the spool is wound too tightly or if the string is tangled. If that’s not the issue, ensure the string is properly threaded and the spool is seated correctly.
  2. The engine won’t start: Ensure gas is in the tank and the spark plug is clean and properly gapped. Check the air filter to ensure it’s clean and not clogged, and make sure the choke is on if it’s a cold start.
  3. The trimmer line keeps breaking: Make sure the line is the correct size and loaded correctly. Don’t overload the spool, as that can cause it to jam and lead to a broken line.
  4. The trimmer is vibrating excessively: Ensure the cutting head is properly attached and not loose. If it’s still vibrating excessively, it could be a sign that the engine is out of balance and needs to be serviced.

If none of these solutions work, it may be time to take your trimmer for professional repair.

Accessories And Attachments For A String Trimmer

Various accessories and attachments are available for string trimmers that can help you get the most out of your tool and tackle specific tasks. Here are a few examples:

  1. Blades: Some string trimmers can be equipped with blades instead of the standard string trimmer line. Blades are great for cutting through thicker vegetation and help you achieve a more uniform cut.
  2. Edging attachment: If you want to use your string trimmer to edge your lawn or garden, consider getting an edging attachment. This accessory attaches to the string trimmer and allows you to create a clean and precise edge along your landscape features.
  3. Pruner attachment: Some string trimmers can be equipped with pruner attachments, which allow you to trim and prune tree limbs and other hard-to-reach vegetation. This is a great option for people who want to maintain their landscapes but want to invest in something other than a separate pruning tool.
  4. Brush cutter attachment: If you want to clear heavy brush or undergrowth, consider getting a brush cutter attachment. These attachments usually have thicker and more durable blades than standard string trimmer lines, making them capable of tackling more demanding jobs.

Alternatives To Mowing With A String Trimmer

A string trimmer is a great tool for tackling those hard-to-reach places in the garden that a traditional lawn mower can’t reach. However, there are other tools you can use to mow your lawn. Several options are available if you’re looking for alternative ways to mow your lawn.

The most common alternative to a string trimmer is a lawn mower. Lawn mowers provide a more efficient way to cut your grass. They come in various sizes and styles, from walk-behind and riding mowers. They can be powered by gasoline, battery, or electric motors. Depending on the size of your lawn, a lawn mower may be the most efficient and cost-effective way to mow.

A push reel mower may be a great option if you don’t have a large lawn. Reel mowers are powered by manual effort, so you don’t need to worry about purchasing fuel. They are also extremely light and easy to maneuver. A push reel mower is best suited for small lawns, and they don’t require much maintenance.

If you’re looking for a more eco-friendly way to mow your lawn, you might want to consider using a mulching mower. Mulching mowers cut your grass into tiny pieces and deposit them back into the lawn. This mulch is a natural fertilizer for your lawn and helps it retain moisture. Mulching mowers greatly reduce environmental impact and save you money on fertilizers.

No matter which type of mower you choose, it’s important to maintain your equipment properly. Regularly check your mower for any signs of wear and tear and any damage to the blades or engine. Keeping your mower in good condition will last longer and help you maintain a beautiful, healthy lawn.


In conclusion, using a string trimmer to mow a lawn can be a great way to get the job done quickly and efficiently. It is important to take safety precautions when operating a string trimmer and to familiarize yourself with the product before use. With the right technique, string trimmers can maintain an attractive and well-manicured lawn.

Frequently Asked Questions:

What kind of string trimmer is best for mowing a lawn?

The best type of string trimmer for mowing a lawn is a walk-behind trimmer, also known as a brush cutter. This type of trimmer is more powerful than a hand-held model and can handle thicker grass and weeds. It is also easier to maneuver and control, making it the ideal choice for mowing a lawn.

Are string trimmers better than traditional lawn mowers?

It depends on the specific task. String trimmers are great for trimming grass around trees and other obstacles, but a traditional lawn mower is more efficient for cutting large grassy areas.

How often should I replace the string in my string trimmer?

It depends on how often you use your string trimmer and the type of string you are using, but replacing the string every 2-3 months is recommended.

Can string trimmers damage my lawn?

Yes, string trimmers can damage your lawn if not used properly. They can cause ruts in the lawn if the operator walks too close to the ground. They can also cause scalping if the trimmer is too close to the ground. Additionally, string trimmers can damage the turf if the trimmer string is not replaced regularly.