A string trimmer is the more versatile choice for most homeowners, while a dedicated stick edger is better for creating crisp, repeatable borders along sidewalks, driveways, and curbs.
What do you need help with?
Open an answer, or tell us what we should cover next.
Answered in this guide
Choose between a string trimmer and a dedicated stick edger
A string trimmer handles trimming and occasional edging with one versatile tool; a dedicated stick edger makes straighter, more repeatable borders.
For the cleanest, most consistent border, a dedicated stick edger generally wins; a string trimmer can produce acceptable edges with less specialized equipment.
Small or irregular yards favor a versatile string trimmer, while long sidewalks, driveways, and frequent edging favor the speed and consistency of a stick edger.
Compare the features that affect edging performance
When comparing models, focus on edging guides, shaft and handle adjustments, cutting width, and power source because these affect control, comfort, and practical use.
Request a topic and help us choose what to build next.
Learn how to edge a lawn with a string trimmer
Choose a cordless string trimmer for a quarter-acre yard
Replace or sharpen a dedicated edger blade
Requests help us prioritize the next guide. No email required.
One anonymous request per topic.
A string trimmer is usually the better all-around tool because it can trim grass, reach around obstacles, and often convert to an edging position. A dedicated stick edger is the better choice when your main goal is maintaining a clean, sharply defined border along sidewalks, driveways, curbs, or garden beds.
The right option depends on whether you value versatility or precise, repeatable edging more.
The main difference
A string trimmer cuts with flexible nylon line. It is designed primarily for cutting grass and weeds in places a mower cannot reach, including around trees, fences, posts, and landscape features. Many models can be rotated or adjusted for light edging.
A dedicated stick edger uses a rigid blade, or another purpose-built cutting system, to follow a narrow border. Its guide wheel, blade guard, and edging orientation are intended to keep the cut consistent as you move along a hard surface.
In practical terms:
String trimmer: More versatile and usually the better first tool.
Dedicated stick edger: More controlled and consistent for formal lawn borders.
Combination trimmer/edger: A useful compromise if it has a stable edging position and suitable guide features.
Choose a string trimmer if you need one tool for several jobs
A string trimmer makes more sense when you need to maintain the entire yard rather than just the perimeter. It can handle:
Grass around trees, fence posts, and walls
Weeds in areas a mower cannot reach
Overgrown patches and uneven ground
Light vegetation along beds and paths
Occasional edging along sidewalks and driveways
The flexible line is also more forgiving around obstacles. If the line touches a tree trunk or landscape edging, it is less likely to cause the kind of hard impact associated with a rigid blade. You still need to avoid striking plants, siding, stones, and people, but the tool is generally easier to use for mixed trimming work.
A string trimmer is especially practical for a smaller property, a yard with irregular landscaping, or anyone who does not want to store and maintain a separate edging tool.
Versatile string trimmer for trimming and occasional edging
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Choose a dedicated stick edger for sharper, repeatable borders
A dedicated stick edger is worth considering when the appearance of the lawn border matters and you edge frequently. Its main advantages are control and consistency.
A dedicated edger can make it easier to:
Follow a straight sidewalk or driveway edge
Maintain a consistent cutting depth
Keep the tool oriented correctly
Recut an established trench or border
Finish large amounts of curb or pavement edging with less guesswork
The guide wheel and blade guard help stabilize the tool. That matters because a string trimmer can produce a wavy edge if its head angle changes while you walk. A dedicated edger does not eliminate the need for practice, but its design gives you a clearer reference point.
The tradeoff is limited usefulness outside edging. A dedicated stick edger is not a substitute for a string trimmer when you need to trim around obstacles or cut grass on uneven ground.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Which one gives the cleaner edge?
For a well-established border beside a hard surface, a dedicated stick edger usually gives the cleanest and most uniform result. Its rigid cutting system can follow the edge without the line bending or wearing unevenly.
A string trimmer can still produce a good edge, particularly when:
The trimmer has an edging guide or wheel
The head rotates securely into an edging position
The border is already established
You keep the cutting head at a consistent angle
You make a slow, controlled pass
String-trimmer edging is less predictable in loose soil, tall grass, or areas with no existing border. The line may remove too much material, leave an uneven groove, or throw debris toward nearby surfaces.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Line versus blade: what changes in use?
String trimmer line
Line is flexible and gradually wears away. You may need to advance, replace, or rewind it, depending on the head design. Thicker line can improve durability for heavier grass, but it must match the trimmer’s approved line size. Oversized line can overload the motor or prevent the head from operating correctly.
Line is a good fit for general trimming and light edging because it is less likely than a rigid blade to bind when it contacts soft vegetation. It can still throw stones and other debris, so eye protection and appropriate footwear remain important.
Edger blades
An edger blade provides a more defined cut but can be damaged by concrete, rocks, metal edging, and other hard objects. Blade guards must remain in place, and the blade should be inspected according to the manufacturer’s instructions.
Do not assume that a blade from one edger fits another. Use only the blade type, diameter, mounting hardware, and replacement procedure specified for the tool. If a blade is bent, cracked, excessively worn, or difficult to remove, replacement or professional service may be safer than trying to repair it.
Performance on different types of property
Small yards
A string trimmer is normally the sensible choice for a small yard. It takes up less storage space and can trim both the lawn perimeter and hard-to-reach grass. A separate stick edger may not provide enough additional benefit to justify another battery system, cord, fuel supply, or maintenance routine.
Large yards with long sidewalks or driveways
A dedicated stick edger becomes more appealing when you have long, continuous borders to maintain. A guide wheel can reduce the effort needed to keep the tool aligned, and a purpose-built edging blade can make repeated passes more consistent.
For a battery-powered tool, compare the manufacturer’s battery compatibility and runtime guidance rather than relying only on voltage. Runtime varies with grass density, cutting depth, battery capacity, temperature, and operator technique. A tool that shares batteries with equipment you already own may be more convenient than one with slightly different power specifications.
Uneven ground and landscaping beds
A string trimmer is usually more useful on uneven ground because you can change the head angle and reach around obstacles. A dedicated edger works best where the edge is relatively accessible and the guide wheel can stay in contact with a stable surface.
Use extra caution near raised roots, loose stones, decorative rock, irrigation components, and landscape lighting. Do not cut blindly into soil where buried utilities or irrigation lines may be present.
Features that affect the buying decision
Edging guide or wheel
If a string trimmer will also be used for edging, look for a stable edging position and a guide feature that helps maintain the correct distance from concrete or paving. A simple rotating head is not always as controlled as a design with a wheel or guard reference.
Adjustable shaft and handle
A shaft that adjusts to your height can improve control and reduce awkward wrist or back positions. Handle placement also matters: a well-positioned auxiliary handle makes it easier to keep the head level during trimming and vertical during edging.
Cutting width
A wider cutting width can reduce the number of passes across open grass, but it may be less convenient around narrow beds and obstacles. For edging, cutting width is usually less important than head stability and visibility of the cutting area.
Power source
Battery models: Quieter and easier to start, with runtime limited by battery capacity and workload.
Corded models: Can run continuously but require a suitable outdoor-rated extension cord and careful cord management.
Gas models: Can provide long operating periods with refueling, but require fuel handling, starting procedures, ventilation, and more routine maintenance.
Follow the tool manufacturer’s requirements for batteries, extension cords, fuel, storage, and maintenance. Never use a damaged cord, battery, guard, or fuel system.
Head and blade availability
Before buying, check whether replacement line, spools, heads, or blades are readily available for that specific model. A tool is less useful if its normal consumables are difficult to find or if the replacement procedure is unnecessarily complicated.
Can a string trimmer replace a stick edger?
For occasional edging, usually yes. A string trimmer can maintain a reasonable border if you use the correct orientation, keep the head steady, and make gradual passes rather than trying to cut a deep edge in one movement.
For frequent edging along long, straight borders, a dedicated stick edger is usually the more efficient and consistent tool. It is also the better choice when you want to recreate the same edge every week or two with minimal variation.
The reverse is not true: a dedicated stick edger generally cannot replace a string trimmer for trimming around trees, posts, fences, and irregular landscaping.
Safety and maintenance considerations
Before clearing a jam, changing line, inspecting a blade, or adjusting the head, shut the tool off and disconnect the power source. For battery tools, remove the battery when the manufacturer instructs you to do so. For gas tools, follow the manual’s shutdown and spark-plug or fuel-system precautions.
Wear eye protection, long pants, sturdy closed-toe shoes, and hearing protection when recommended. Keep people and pets away from the work area, and inspect the lawn for stones, wire, glass, and other objects before cutting.
After use:
Remove grass and soil from the guard and head area.
Check the line, spool, blade, guard, and fasteners for damage.
Confirm that the head or blade turns freely only when the tool is safely prepared for inspection.
Store batteries, fuel, and the tool according to the manufacturer’s instructions.
Replace worn or damaged cutting parts instead of continuing to use them.
Bottom line
Choose a string trimmer if you want one versatile tool for trimming grass, weeds, obstacles, and occasional edging. Choose a dedicated stick edger if your priority is a crisp, consistent border along long runs of sidewalk, driveway, or curb.
If you are buying your first yard tool, start with the string trimmer unless your property has extensive formal edging. If you already own a capable trimmer and are dissatisfied mainly with border consistency, a dedicated stick edger is the more targeted addition.
FAQ
Is a string trimmer the same as an edger?
No. A string trimmer uses flexible line for general grass and weed trimming, while a dedicated edger is designed to create a controlled border, often with a rigid blade and guide wheel. Some string trimmers can rotate into an edging position, but they may not provide the same consistency.
Can I edge a sidewalk with a string trimmer?
Yes. Use the manufacturer-approved edging position, keep the head steady, and make a controlled pass. Wear eye protection and clear the area of stones and debris. A dedicated edger is usually easier for long, straight borders or deeply established edges.
Which is better for a small yard, a string trimmer or stick edger?
A string trimmer is usually better because it can handle both general trimming and occasional edging while taking up less storage space. A dedicated stick edger makes more sense if the small yard has extensive formal borders that must be maintained frequently.
Does a dedicated edger cut better than a string trimmer?
For a straight, established lawn border, a dedicated edger generally provides more consistent depth and alignment. A string trimmer is more versatile and may be preferable around irregular beds, trees, posts, and uneven ground.
Can an edger replace a string trimmer?
Usually not. A dedicated edger is designed primarily for borders and is not a practical replacement for trimming grass around obstacles or reaching uneven areas. If you need only one tool, a string trimmer is generally more versatile.
