For most suburban yards, a battery string trimmer with a straight shaft, a 13 to 16 inch cutting swath and a bump-feed head is the best balance of power, reach and convenience. Gas trimmers suit large properties and heavy weeds. Choose line diameter to match your trimmer: thinner line (about .065 inch) for light trimming, thicker (.080 to .095 inch) for tougher growth.
A string trimmer (weed eater) handles the edges a mower can’t reach. Here is what to look for.
Power source
| Battery | Gas | Corded | |
|---|---|---|---|
| Best for | Most yards | Large properties, heavy weeds | Small yards near an outlet |
| Noise | Quiet | Loud | Quiet |
| Maintenance | Minimal | Fuel mix or oil, spark plug | Minimal |
| Runtime | Battery-limited | Unlimited | Unlimited, cord-limited |
Shaft type
- Straight shaft: better reach under shrubs and decks; suits taller users.
- Curved shaft: lighter and easier to handle for quick trimming.
- Split shaft / attachment-capable: swap heads for edger, pole saw or hedge trimmer.
Cutting swath
13 to 16 inches suits most homes. Wider swaths cut faster but need more power.
Trimmer line
- .065 in: light grass trimming
- .080 in: general use
- .095 in: thicker weeds and heavier growth
Always use the size your trimmer supports.
Feed system
- Bump feed: tap to release more line.
- Automatic feed: releases line as needed.
- Fixed line: pre-cut pieces you replace manually.
Easy-load heads that you can wind without disassembly save time.
Edging
Many trimmers rotate to edge along driveways and sidewalks. A wheel or guide makes edging cleaner.
Safety
Wear eye protection, long pants and closed shoes, and hearing protection with gas models.
Common questions
Straight or curved shaft trimmer?
Straight shafts reach under bushes and fences more easily and suit taller users. Curved shafts are lighter and easier to balance for short trimming jobs.
What size trimmer line should I use?
Use the diameter your trimmer's manual specifies. Common sizes are .065 inch for light work and .080 to .095 inch for heavier trimming.
What is bump feed?
A trimmer head that releases more line when you tap it on the ground while running. Automatic feed heads release line without bumping.