10 Best Walk Behind String Trimmers 2025 in the United States

The Earthquake Walk Behind String Mower is equipped with a powerful 160cc Viper engine, making it highly effective for tackling tough weeds and brush. With a cutting width of 22 inches, this trimmer allows you to cover larger areas quickly. The robust 14-inch wheels ensure smooth movement through thick grass and uneven terrain, making it easier to manage overgrown areas that standard push mowers cannot handle. The durable steel deck enhances stability and reduces vibration, contributing to a comfortable user experience.

Additionally, the super tough nylon line provides efficient cutting performance with its wide swath. One notable convenience feature is the never-go-flat wheels, which ensure the mower is always ready for use without the hassle of flat tires. The integrated clutch and hand bail system increases safety by stopping the trimmer head while keeping the motor running, useful for clearing debris without restarting the engine. Assembly is hassle-free, requiring minimal setup, so you can get started almost right out of the box. The 5-year limited warranty offers peace of mind, reflecting the manufacturer's commitment to quality.

On the downside, the mower is relatively heavy at 70 pounds, which might be cumbersome for some users to maneuver. It also has a limited range of adjustable cutting heights (1.5 to 3 inches), which may not cater to everyone’s lawn preferences. Despite these minor drawbacks, its robust engine, wide cutting swath, and user-friendly features make this string mower an excellent choice for those dealing with tough vegetation and looking for a reliable, powerful tool.

The PowerSmart Gas Walk Behind String Trimmer DB6222 is equipped with a 161cc 4-cycle OHV gas engine, making it quite powerful for tackling tough cutting tasks. Its easy-start ignition system and auto choke simplify starting the trimmer, which can be a significant advantage for users who might struggle with traditional gas-powered equipment. The 22-inch cutting width and heavy-duty 0.155-inch trimming line make it ideal for large areas, efficiently cutting through deep weeds, brush, and tall grass.

It comes with 14-inch wheels and an adjustable cutting height (1.90-3.90 inches), which enhance its maneuverability over tough terrains and uneven surfaces. Additionally, the foldable handle allows for easy storage, saving space when the trimmer is not in use. Weighing 56 pounds, it is relatively hefty, which might be a consideration for some users in terms of ease of use and transport.

The inclusion of accessories like a funnel, wrenches, and extra trimmer lines adds value to the purchase. While it ranks #243 among walk-behind lawn mowers and has received a solid 4.0 rating from 259 reviews, indicating general customer satisfaction, the product's weight and manual operation mode might be drawbacks for some. Nonetheless, the 2-year limited warranty provides some peace of mind.

The BILT HARD Walk Behind String Trimmer features a powerful 170cc 4-cycle OHV engine, offering ample cutting power for heavy mowing tasks. With a 22-inch cutting width, it covers a wide area, making it efficient for larger yards or farms. The trimmer uses a heavy-duty nylon line that is effective in clearing thick grass and weeds, ideal for maintaining overgrown areas.

The 14-inch never-flat wheels ensure easy maneuvering across different terrains, and the foldable ergonomic handle improves grip and storage convenience. However, the manual recoil starting mechanism might be less convenient for some users compared to automatic or electric start options. Weighing 54.1 pounds, it is relatively heavy, which might be a drawback for some users when pushing it around. The adjustable handle is a significant plus, offering customization for user comfort.

Assembly is required, which could be a disadvantage for those who prefer a ready-to-use product. This string trimmer is gasoline-powered, providing strong performance but also requiring regular maintenance and handling precautions. The product's robust design, including a one-piece steel deck, ensures durability and stability, although it may contribute to the weight. Its ability to reach tight spaces and tackle tough brush makes this trimmer well-suited for users with challenging landscaping needs.