9 Best Walk Behind String Trimmers 2025 in the United States

The SENIX High Wheel Gas Walk Behind Brush Cutter and String Trimmer is a robust tool designed to handle large areas with its 22-inch cutting swath and .155-inch line. The 160 cc 4-cycle engine provides ample power for tackling dense weeds and brush, and it is noted for being low on vibration and emissions, which is eco-friendly and enhances user comfort. The 14-inch rubber wheels aid in maneuverability, making it easier to navigate through uneven terrain.

Additionally, the steel deck's 5-position height adjustment feature allows users to customize the trimming height between 1.57 to 3 inches, providing flexibility for different yard conditions. The ergonomic handle adds to the comfort during use, and its ability to fold down simplifies storage. This model includes engine oil and a 20-inch string trimmer line, along with a 3-year limited warranty, which adds value and peace of mind for the buyer.

Weighing 48.5 pounds, it is moderately heavy, which might be a consideration for some users. The push-style mechanism and gasoline power source are standard for this category. For those dealing with large yards and tough terrain, this trimmer could be a suitable and efficient choice.

The Earthquake Walk Behind String Mower is a gas-powered trimmer designed to tackle heavy brush and thick weeds where regular push mowers struggle. Its 160cc Viper 4-cycle engine provides solid power, making it effective for rough yard conditions. The 22-inch cutting width is wide enough to cover ground quickly, and the 14-inch never-go-flat wheels help it move smoothly over uneven terrain without the hassle of flat tires. Weighing 70 pounds, it’s fairly heavy but stable, which might feel a bit bulky for smaller users or tight spaces. The adjustable handlebar with five height positions allows for comfortable use for different users and tasks.

Starting the mower is straightforward thanks to the hand bail system that keeps the engine running safely and stops the cutting head when needed, reducing the need to restart frequently. The steel deck adds durability and lowers vibration, which can make longer jobs less tiring. Assembly is simple, mostly involving unfolding and tightening knobs, so it’s ready to run quickly out of the box.

Its weight and size mean it’s more suited for medium to large yards with tough vegetation rather than precise trimming near delicate plants or small gardens. Some users might find it less maneuverable compared to lighter models. If you need a reliable, powerful trimmer that handles challenging brush with minimal maintenance, this mower is a good choice. The included 5-year warranty adds peace of mind for long-term use.

The Yard Force 22 in. walk-behind string trimmer features a powerful 163cc Briggs & Stratton commercial-grade engine combined with a large 22-inch cutting width, making it suitable for efficiently trimming medium to large lawns. Its 'Check & Add' oil system simplifies maintenance by eliminating the need for regular oil changes. The trimmer utilizes a 0.155-inch line diameter, which balances cutting strength and line lifespan for typical grass and light weeds.

Equipped with 14-inch rubber-wrapped rear wheels, this mower rolls smoothly over various terrains and reduces effort on uneven ground. Weighing 68.3 pounds, it offers a balance between stability and maneuverability, although it might feel somewhat heavy during extended use for some users. The foldable handle enhances storage convenience and makes transportation easier.

This unit is well suited for homeowners with medium to large yards seeking a reliable, easy-to-maintain gas-powered trimmer mower. However, its manual starting system may be less convenient than electric start models, especially when starting the engine cold, and it may not be ideal for those looking for a lightweight or very easy-starting machine.