Best String Trimmers for Large Properties (2026)

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The short answer

For a large property, the gas Echo SRM-2620T is the best string trimmer: a 25.4cc high-torque engine, a 17-inch swath and a 20.6 oz fuel tank that keeps going through fence lines, ditches and pasture edges. If you prefer battery power, the Milwaukee M18 FUEL dual-battery trimmer is the strongest cordless pick for heavy growth, and the EGO Power+ ST1623T is the best homeowner battery trimmer thanks to automatic line feed and a light carbon-fiber shaft. Plan on spare batteries for any cordless trimmer on an acre or more.

Our picks at a glance

Pick	Model	Power	Swath	Weight	Best for	Amazon
Best overall (gas)	Echo SRM-2620T	25.4cc 2-stroke, high-torque gearing	17″	12.5 lb dry	Acreage, thick weeds, long sessions	View
Best cordless power	Milwaukee M18 FUEL 17″ dual battery (3006)	Two M18 batteries	17″	16.9 lb with two 8Ah packs	Heavy growth, Milwaukee owners	View
Best battery for homeowners	EGO Power+ ST1623T	56V, brushless	16″	12.5 lb with 5Ah battery	1–2 acres, easy line loading	View
Best gas from a dealer brand	Stihl FS 91 R	28.4cc 2-stroke	16.5″	12.1 lb dry	Buyers who want local dealer service	View
Best value battery	RYOBI 40V HP Whisper 17″ (RY402110)	40V, brushless	17″	12.9 lb with 6Ah battery	Budget buyers, RYOBI owners	View

Specs are from manufacturer ratings as compiled by Pro Tool Reviews. Battery weights depend on the pack you install.

How we picked

We compared manufacturer specs, owner reviews and published reviews, leaning on Pro Tool Reviews’ professional and homeowner trimmer roundups. On a large property, trimming is a long job, so we weighted cutting power, swath width, fuel or battery capacity, line size, balance and vibration, and how quickly you can reload line in the field.

1. Echo SRM-2620T — Best overall

The SRM-2620T is built for long sessions. Its 25.4cc X Series engine drives the head through 2:1 high-torque gearing, which helps it keep line speed in thick grass and weeds instead of bogging down. It handles 0.095–0.105-inch line, cuts a 17-inch swath and carries a 20.6 oz fuel tank. Pro Tool Reviews specifically calls it out for large properties because of that power and fuel capacity. Echo backs it with a 5-year residential warranty.

Who it’s for: owners of one to several acres with fence lines, ditches, overgrown edges and field borders.

Good to know: it is a two-stroke, so you will mix fuel and oil. At 12.5 lb dry it is heavier than homeowner battery trimmers, so use a shoulder strap for long jobs.

Check the Echo SRM-2620T on Amazon →

2. Milwaukee M18 FUEL 17″ Dual Battery — Best cordless power

Milwaukee’s dual-battery trimmer runs on two M18 packs at once, and Pro Tool Reviews rates it among its top professional battery trimmers. It takes 0.080–0.105-inch line, cuts a 17-inch swath, has a fast-load head and comes with a shoulder strap. If you want to leave gas behind but still trim heavy growth, this is the battery model to look at.

Who it’s for: property owners already on Milwaukee M18 who want pro-level cordless trimming.

Good to know: it is heavy with two large packs (about 16.9 lb with 8Ah batteries) and is a premium buy if you do not already own M18 batteries. Kit contents vary by listing, so confirm what is included.

Check the Milwaukee M18 FUEL dual-battery trimmer on Amazon →

3. EGO Power+ ST1623T — Best battery for homeowners

Pro Tool Reviews calls the ST1623T “the best string trimmer homeowners can currently buy.” Two features stand out on a big lawn. POWERLOAD winds new line onto the head at the push of a button, and LINE IQ feeds line automatically as it wears. The telescopic carbon-fiber shaft keeps the tool light (about 7.7 lb bare) with good vibration control.

Who it’s for: owners of one or two acres who want quiet, low-maintenance trimming and may already own EGO tools such as the EGO Z6 zero-turn.

Good to know: it takes 0.095-inch line only, and the swath is 16 inches. On large properties, one battery will not finish everything; plan on a second pack. Kits are sold with different battery sizes.

Check the EGO ST1623T on Amazon →

4. Stihl FS 91 R — Best gas from a dealer brand

The FS 91 R is a 28.4cc trimmer with very high line speed (rated to 7,150 RPM), a 16.5-inch swath and a 24 oz fuel tank. Its biggest advantage is Stihl’s dealer network, which makes service and parts easy to find in most towns.

Who it’s for: buyers who want a pro-grade gas trimmer and value local dealer support.

Good to know: Stihl sells most of its power equipment through dealers, so Amazon availability is limited and listings may be from third-party sellers. Check the seller carefully.

Search the Stihl FS 91 R on Amazon →

5. RYOBI 40V HP Whisper 17″ (RY402110) — Best value battery

Pro Tool Reviews found the RY402110 to have the most power among homeowner battery trimmers it covered, and it adds a 17-inch swath and 0.080–0.105-inch line capacity. It is a good fit if your property has frequent overgrowth and you want to stay on the RYOBI 40V platform.

Who it’s for: RYOBI 40V owners and budget-conscious buyers who still want a wide cut.

Good to know: as with any battery trimmer on a large property, extra batteries make a big difference.

Check the RYOBI 40V HP trimmer on Amazon →

Gas or battery for a large property?

Your property	Best fit	Why
Under 1 acre, mostly lawn edges	Homeowner battery (EGO, RYOBI)	Light, quiet, one or two batteries cover it
1–2 acres with beds and fences	Battery with spare packs, or gas	Battery works if you buy extra packs; gas never runs dry
2+ acres, ditches, field edges	Gas (Echo SRM-2620T, Stihl FS 91 R)	Long runtime, thicker line, refuel in seconds
Heavy brush and saplings	Gas brushcutter or a trimmer that accepts a blade	String alone struggles with woody growth

Buying checklist

• Line size. Thicker line (0.095–0.105 inch) cuts thick weeds better and wears more slowly. Check the maximum your head accepts.
• Swath. 16–17 inches is standard for serious trimmers; wider means fewer passes.
• Straight shaft. Straight shafts reach under shrubs and fences better and suit taller users.
• Runtime plan. For battery models, estimate how long you trim and buy enough packs. For gas, look at tank size.
• Line loading. On big properties you will reload often. Fast-load heads, like EGO’s POWERLOAD, save real time.
• Weight and balance. Use a shoulder strap or harness for anything over about 10 lb.
• Attachments. Some trimmers accept edger, pole saw or brushcutter heads. Check before buying if you want one power head for several jobs.

Safety

Wear eye protection, long pants and closed shoes; hearing protection with gas trimmers. Keep people and pets at least 50 feet away while trimming, and watch for stones and wire along fence lines.

FAQ

What is the best string trimmer for 2 acres or more?

A gas trimmer such as the Echo SRM-2620T is the most practical choice for 2+ acres because it runs as long as you have fuel and handles thick line. A strong battery model like the Milwaukee M18 FUEL dual-battery works too if you carry spare packs.

Is a battery string trimmer strong enough for thick weeds?

Top battery trimmers handle thick grass and weeds well. For woody brush and saplings, a gas brushcutter with a blade is still the better tool.

What line size should I use on a large property?

Use the thickest line your head supports, commonly 0.095 or 0.105 inch. Thicker line cuts tougher growth and lasts longer between reloads.

How long does a battery string trimmer run?

It depends on battery size and how hard you push it. On large properties, expect to need two or more batteries to finish a full trim.

Are Stihl trimmers sold on Amazon?

Stihl sells mainly through local dealers, so availability on Amazon is limited and usually through third-party sellers. Echo, EGO, Milwaukee and RYOBI are easier to find online.