Straight vs Curved Shaft String Trimmer: Which Is Better?

Choose a straight shaft trimmer if:

• You are tall, or you want to stand upright without hunching over the tool.
• You trim under shrubs, low branches, decks, benches and fence rails.
• You clear ditches, slopes, fence rows or rough property edges.
• You might add a brush blade or attachments later, as allowed by the manual.

Choose a curved shaft trimmer if:

• You are shorter and a long straight shaft feels unwieldy.
• You mostly trim along beds, walkways and around the house.
• You want the lowest-cost gas trimmer that still has a full-size engine.
• You value close control and visibility near flower beds.

For heavier work, generally yes. A solid driveshaft and gearhead handle dense weeds and long sessions well, and the extra length keeps debris farther from your legs and lets you cut under obstacles without bending. That is why commercial trimmers such as the ECHO SRM-2620T use straight shafts. The costs are a longer tool that is harder to store and maneuver in tight spots and, for some users, a head that feels farther away to control.

A curved shaft is not a lesser tool for ordinary lawn trimming. Husqvarna describes the 128C curved shaft as giving a comfortable working angle and good visibility around beds and obstacles, and at about 11 lb it is an easy first gas trimmer. It is simply not the one to pick for brush or for regular work under low obstacles.

Rarely, and it matters less. Every battery trimmer in the catalog uses a straight shaft, and several solve the height problem with adjustable length: the EGO ST1623T has a telescopic carbon fiber shaft. Attachment-capable power heads, like the RYOBI 40V attachment trimmer and DEWALT DCST972X1, split into straight sections that also run edgers and pole saws. If you are choosing between gas designs because you are short, a battery trimmer with an adjustable shaft and handle may fit you better than either. Compare in the best string trimmers.

Running costs are nearly identical: both 28cc Husqvarnas need two-cycle fuel mixed to the ratio in the manual, line, an air filter and a spark plug. A straight shaft gearhead may need periodic grease per the manual. The bigger long-term cost is fuel care: two-stroke trimmers that sit with ethanol fuel are the usual source of hard-starting complaints, and ethanol-free premix like VP Racing SEF 50:1 reduces that risk. Use the two-cycle mix ratio calculator for exact oil amounts and the line size chart to match line.

Husqvarna 128C owners commonly praise easy starting and value as a first gas trimmer, and some complain about the bump-feed head and line tangling. Straight shaft owners, including 130L buyers, often praise reach under obstacles and comfort for taller users, and note the extra length when storing it. Across both, taller owners who bought curved shafts are the group most likely to report back strain or regret.