Best String Trimmers 2026: 5 Picks for Spring Lawn Edging and Cleanup

March and April are when string trimmers earn their keep. Winter growth along fence lines, spring weeds pushing through beds, and the grass along the driveway that a mower can't reach -- all of it comes due at once. If your trimmer has been sitting in the garage since September, there's a good chance the line has gone brittle or the carb is gummed up. That's the real cost of a bad trimmer: it doesn't just underperform, it quits on you when the work is piling up.

If you're also in the market for a new mower this spring, see our full roundup: Best Battery Powered Lawn Mowers 2026. For the full outdoor power tool picture including leaf blowers and hedge trimmers, see the Outdoor Tools Guide.

After contractor and renovation use across jobsites, rental properties, and a half-acre residential lot, the differences between a $39 corded trimmer and a $299 FlexVolt model are obvious. The right choice depends less on headline voltage and more on yard size, line system, runtime, and the type of overgrowth you actually cut.

For this spring 2026 update, we narrowed the field to five models that represent the best options across power type, yard size, and budget. Here's what we tested, how we tested it, and the practical verdict on each one.

Quick Comparison

How We Tested

We ran each trimmer through three test scenarios that cover what you actually face in a Pacific Northwest spring: light maintenance edging along a dry concrete border, medium-duty cleanup along an overgrown fence line with grass and weeds mixed together, and heavy-growth work cutting through 8-inch grass and blackberry runners that hadn't been touched since fall.

For each trimmer, we tracked how well the auto-feed line system worked (bump feed, auto-feed, or fixed spool), how long before the motor lost torque in heavy material, balance and vibration during extended use, and line breakage frequency. We also looked at how each handles the start-up process -- which matters more than most buyers realize, particularly for gas models coming out of winter storage.

Prices and kit configurations were spot-checked for this 2026 update. Confirm price, battery, and charger inclusion before checkout.

The 5 Best String Trimmers for Spring 2026

1. Black+Decker BESTA510 -- Best Budget Corded

If you have a small yard, consistent access to an outlet, and you want a trimmer that just works without fuss, the BESTA510 is $39 well spent. Corded trimmers get dismissed as entry-level, but for the right situation -- a city lot, edging along a sidewalk, or trimming beds close to the house -- the unlimited runtime and zero maintenance argument is legitimate.

The 6.5-amp motor is modest but adequate for light to medium trimming. In my tests, it handled routine grass and weed edging cleanly. It lost speed on thick blackberry stems, which isn't a surprise for a corded electric at this voltage -- that's not what it's built for. Stick to standard lawn maintenance and it will do the job every time you plug it in.

The automatic line feed is straightforward and the 14-inch cut width covers a useful area. The pivoting head lets you convert to edging mode, which makes it a two-function tool for the price of one. Build quality is basic -- this is not a tool you're passing down to your kids -- but at the current retailer price the value proposition is clear.

Where the BESTA510 fails is anywhere the cord becomes a problem: large yards, slopes that put you far from outlets, or areas with obstacles that create cord management headaches. In those situations, spend up to the EGO or STIHL. For a 2,000-square-foot lot with an outlet nearby, this is an honest tool.

Key specs: 6.5A corded | 14" cut width | Straight shaft with pivoting head | Automatic line feed | 0.065" line | Converts to edger

2. EGO Power+ ST1521S -- Best Battery

The EGO ST1521S is the battery trimmer I'd recommend to most homeowners upgrading from corded or replacing a gas trimmer they're tired of maintaining. The 56V brushless motor puts out real power -- enough to handle thick spring growth without struggling -- and EGO's POWERLOAD line system is the best auto-feed mechanism I've used. You load line from the spool with the push of a button rather than winding it manually. That detail alone saves more frustration per season than most people realize.

In heavy-growth testing, the ST1521S cut through 8-inch grass and weeds cleanly on the first pass. The motor maintained speed well throughout, with only minor slowdown in the densest blackberry patches -- at which point slowing your walking pace fixed it. Runtime on a 2.5Ah battery is roughly 35-45 minutes of real trimming, which is enough for most residential lots in a single charge.

The carbon fiber straight shaft feels solid and the balance is better than most trimmers at this price. At 10.7 lbs with the battery, it's manageable for extended sessions without a shoulder harness. EGO's 56V battery platform is compatible across their mowers, blowers, and chainsaws -- which matters if you're building out a battery ecosystem for the season.

One note: the ST1521S kit includes a 2.5Ah battery. If you're trimming a larger property, a 5Ah or 7.5Ah battery gives you significantly more runtime per charge. The tool itself is worth the price even if you buy a bigger battery separately.

Key specs: 56V brushless | 15" cut width | Straight shaft | POWERLOAD line system | 2.5Ah battery included | 0.095" line | Weighs 10.7 lbs with battery

3. STIHL FSA 57 -- Best for Small Yards

STIHL doesn't need an introduction in the outdoor power equipment space, and the FSA 57 is their entry-level battery trimmer -- which still means it's built to STIHL's quality standard. The curved shaft, lightweight design, and 36V battery make it purpose-built for small yards where you want something that handles better than a big straight-shaft trimmer and lasts longer than a budget corded model.

At 7.5 lbs with the battery, the FSA 57 is noticeably lighter than the EGO or DeWalt. For a homeowner doing 20-30 minutes of trimming per session on a small lot, the difference in weight is meaningful -- particularly toward the end of a session when fatigue sets in. The curved shaft gives you better sightlines on close-quarter edging around beds and garden borders.

The AK battery system STIHL uses here is their compact homeowner line, not the professional AP system -- which means the batteries are smaller and the runtime is shorter. On the included AK 10 battery, you get about 20-25 minutes of real use. That's fine for a small yard. If you have a larger property, step up to the EGO or Husqvarna.

Where STIHL consistently wins is build quality and dealer support. The FSA 57 feels more substantial than most battery trimmers at this price point, and STIHL's warranty service is handled through dealers who actually work on the tools. If you're in a small-yard situation and you want something that will hold up for 8-10 seasons without falling apart, the FSA 57 is worth the $129.

Key specs: 36V AK battery | 14" cut width | Curved shaft | 7.5 lbs with battery | AK 10 battery included | Auto-cut line feed | 0.065" line

4. Husqvarna 128LD -- Best Gas

If you're working a larger property or dealing with the kind of overgrowth that battery trimmers have trouble sustaining through, the Husqvarna 128LD is the gas trimmer I'd point you to. The detachable shaft is the feature that separates it from most gas trimmers at this price -- swap in a hedge trimmer attachment, an edger, or a cultivator, and you have a multi-tool platform instead of a single-use machine.

The 28cc engine runs on a standard 50:1 mix and starts consistently with a warm engine. Cold starts in early spring can take 3-4 pulls, but that's normal for small gas engines that sat all winter -- drain the carb in the fall and it will start much easier in March. The Smart Start system (reduced-compression pull) does make starting noticeably easier than older gas trimmers without it.

In heavy-growth testing, the 128LD outperformed every battery trimmer in the lineup on sustained thick-material cutting. Running a full pass through tall, wet grass along a fence line without slowing down is where gas still has the clear advantage. The 17-inch cut width covers ground efficiently, and the straight shaft keeps you away from obstacles better than a curved shaft on larger areas.

The tradeoff is everything that comes with gas: fuel to mix and store, a carb to clean if the trimmer sits too long, noise above 95 dB, and the annual maintenance routine. If you're already running gas outdoor equipment and those factors are built into your process, the 128LD is a well-built, versatile choice that earns its keep over many seasons.

Key specs: 28cc 2-stroke | 17" cut width | Straight detachable shaft | Smart Start | 11.5 lbs dry | Dual-line tap head | Compatible with Husqvarna attachments

5. DeWalt DCST972X1 FlexVolt -- Best Heavy-Duty

The DeWalt DCST972X1 is the trimmer you reach for when the job exceeds what a standard battery trimmer can handle. The FlexVolt 60V battery is the reason -- it puts out more power than standard 20V or 40V platforms, and in this trimmer it translates to genuine sustained torque through thick overgrowth, wet spring grass, and the kind of neglected fence lines that haven't been touched in two years.

In heavy-growth testing, the DCST972X1 was the most capable battery trimmer I ran. Blackberry runners, tall wet grass, and dense weeds along a wood fence -- it worked through all of it without significant motor slowdown. The 17-inch cut width and 0.095-inch line combination handles real volume efficiently. The brushless motor maintains speed better under load than lower-voltage platforms, which means cleaner cuts and less line breakage.

The FlexVolt battery included in the DCST972X1 kit is a 9Ah pack, which gives you 50-65 minutes of actual runtime depending on what you're cutting. That's enough to work through most residential lots plus cleanup in a single charge. The 9Ah FlexVolt battery also steps down to 20V for compatibility with DeWalt's full 20V MAX tool line, which makes it useful across a large existing DeWalt ecosystem.

at the current retailer price with the battery, this is a meaningful investment. If you're already in the DeWalt FlexVolt system, it drops the effective tool cost significantly. If you're buying fresh, the EGO covers most residential needs at the current retailer price less. The DCST972X1 makes sense when you have heavy, consistent trimming work and you want a battery trimmer that doesn't compromise on power.

Key specs: 60V FlexVolt brushless | 17" cut width | Straight shaft | 9Ah FlexVolt battery included | 0.095" line | 13 lbs with battery | Dual-speed trigger

String Trimmer Buying Guide: What Actually Matters

Corded vs. Battery vs. Gas -- How to Choose the Right Power Source

The choice of power source is the most important decision you'll make. Here's a practical framework based on yard size and use case:

• Corded electric: Best for small yards (under 4,000 sq ft) with outlet access close to the trimming area. Zero maintenance, no battery cost, but the cord limits range and creates obstacles. The Black+Decker BESTA510 is the right call here.
• Battery: The right answer for most homeowners. No cord, no gas maintenance, starts instantly. The 36V-56V range covers most residential trimming adequately. Battery trimmers have closed the gap with gas significantly -- the EGO 56V is the benchmark.
• Gas: Still the best for heavy-duty sustained work, large properties, and professional use. Unlimited runtime, maximum torque in thick material, and attachments that expand the tool's capability. The tradeoff is maintenance: carb cleaning, seasonal fuel management, and noise.

Straight Shaft vs. Curved Shaft

Straight shafts give you more reach, better balance for tall users, and access under shrubs and fences at a lower angle. Most professional and semi-professional trimmers use straight shafts. If you're over 5'8" or trimming in tight spots under landscaping, straight shaft is the right call.

Curved shafts are shorter and easier to control at close quarters -- they work well for edging around garden beds and borders. They're lighter and often more comfortable for shorter users. If your primary use is precise edging on a small property, the curved shaft STIHL is easier to manage.

Cut Width: Matching Size to Your Workload

A wider cut path covers more ground per pass but increases the load on the motor in thick material. Standard residential trimmers run 14-15 inches -- adequate for most lawn edging and cleanup work. The 17-inch models (Husqvarna and DeWalt) cover ground faster but work best when the motor has enough power to sustain that width through heavy growth. Don't buy a 17-inch trimmer on a weak motor -- it'll stall or break line constantly.

Line Feed Systems: Auto-Feed vs. Bump Feed

Auto-feed systems advance line automatically as it wears. They're convenient but can advance more line than you need, burning through the spool faster. Bump feed requires you to tap the head on the ground to advance line -- more control, slightly more attention required. EGO's POWERLOAD system stands apart from both: you load pre-wound spools in seconds, which eliminates the most annoying part of string trimmer ownership.

Line Diameter: 0.065" vs. 0.080" vs. 0.095"

Thicker line handles heavier material but puts more load on the motor. Here's a simple guide:

• 0.065": Standard residential use -- edging, light grass and weeds. Used in the BESTA510 and FSA 57.
• 0.080": Medium-duty work -- slightly overgrown areas, standard lawn maintenance.
• 0.095": Heavy-duty trimming -- thick weeds, overgrowth, areas that haven't been maintained. Used in the EGO ST1521S and DeWalt DCST972X1.

Don't put thick line in a low-powered trimmer -- it'll bog the motor and break the line constantly. The line diameter should match the power output of the tool.

FAQ

Can a battery trimmer replace a gas trimmer for a medium-sized yard?
For a standard residential lot under a third of an acre, yes -- a 56V battery trimmer like the EGO ST1521S handles it comfortably. Where gas still has a real edge is in sustained heavy-growth work over extended sessions and in very thick material like tall weeds and overgrown fence lines. For routine lawn maintenance, battery is there.

Why does my trimmer keep breaking line?
Three main causes: using line that's too thick for the motor (creates excess load), worn line that has dried out and become brittle (store your spool in a sealed bag with a little moisture), or the trimmer head spinning too close to hard surfaces like concrete and fence posts. Keep the cutting arc clear of hard surfaces and check your line diameter against what the manufacturer recommends.

How do I prep a gas trimmer that sat all winter?
Start with fresh fuel -- old gasoline degrades in 30-60 days and gums the carb. If you didn't run the carb dry in fall, you may need to clean the carburetor before it will start reliably. Replace the spark plug if it's been more than two seasons. Use stabilized fuel or ethanol-free gas for storage going forward. The Husqvarna 128LD has a purge bulb to prime the carb before cold starts, which helps considerably.

What's the best trimmer for edging along a sidewalk or driveway?
Any straight-shaft trimmer with a pivoting head works for edging -- you rotate the head 90 degrees so the line spins vertically. The Black+Decker BESTA510 and EGO ST1521S both support this. For dedicated edging on a larger property, a separate lawn edger gives you cleaner results and less fatigue than trimmer edging, but most homeowners get by fine with a trimmer.

Is the STIHL FSA 57 worth the extra cost over a budget corded trimmer?
If you're trimming more than once a week, or if you need to work away from an outlet, yes. The cord management hassle on a corded trimmer is a real time tax per session. The FSA 57 is lighter than everything else in this lineup, and the STIHL build quality means it will still be running in 2034. For a homeowner who trims weekly all season, the cost difference pays for itself in frustration saved within the first year.

Bottom Line

For most homeowners heading into spring 2026, the EGO Power+ ST1521S is the call. The 56V platform handles real residential work, the POWERLOAD system eliminates the biggest maintenance frustration in string trimmer ownership, and the battery ecosystem gives you room to expand. If you're budget-constrained and have a small lot with outlet access, the Black+Decker BESTA510 is an honest $39 tool that does its job.

The STIHL FSA 57 is the pick for small-yard owners who want something better-built than a budget corded trimmer and lighter than a full-size battery model -- and who are willing to pay a small premium for STIHL's quality and dealer support. For larger properties where gas still makes sense, the Husqvarna 128LD's detachable shaft and 28cc engine make it the most versatile option in the group. And if you're in the DeWalt FlexVolt ecosystem and dealing with serious overgrowth, the DCST972X1 is the heavy-duty battery trimmer pick in this test group.