Best Chainsaw for Large Trees – 2025 Reviews

When dealing with large trees, your power source choice dramatically affects performance. Gas chainsaws deliver maximum power and runtime, making them ideal for the biggest jobs, but they’re heavier, noisier, and require more maintenance.

Battery-powered models have come a long way—modern brushless motors can rival gas power for many applications, offering quiet operation and zero emissions. The trade-off is limited runtime and the need to manage battery charges.

Corded electric saws provide consistent power without runtime concerns, but the cord limits mobility and requires access to power outlets. For large trees, I typically recommend gas for maximum power or high-voltage battery models for convenience.

The bar length determines how large a tree you can effectively cut. For large trees, you generally want 18 inches minimum, with 20-24 inches being ideal for substantial trunks.

Here’s why: a longer bar allows you to cut through larger diameters in single passes and provides better leverage. However, longer bars also mean heavier saws and increased vibration. I’ve found that 20-inch bars often strike the best balance for most residential large tree work.

Remember—the bar should be at least 2 inches longer than the diameter of the wood you’re cutting to ensure safe and efficient operation.

For large trees, engine power is non-negotiable. Gas engines are measured in cc (cubic centimeters), with 50cc+ being the sweet spot for serious cutting. Electric models use amp ratings (12-15 amps for corded) or voltage (40V-80V for battery).

What matters most is consistent power under load. I’ve tested saws that start strong but bog down when the cutting gets tough. Look for features like brushless motors in electric models or X-Torq technology in gas saws that maintain power efficiency.

The chain speed also affects performance—faster chain speeds generally mean cleaner, quicker cuts, but they also consume more power and require better chain control.

Large tree cutting introduces significant safety concerns. Chain brakes are essential—they stop the chain within seconds if kickback occurs. Inertia-activated brakes are particularly effective because they engage automatically.

Low-kickback chains reduce the risk of the saw jerking back toward you, while hand guards protect your hands from debris. I always look for saws with safety switches that require two actions to start, preventing accidental activation.

Don’t underestimate proper handling technique either—no safety feature replaces knowing how to position yourself and the saw correctly during cuts.

Maintenance can make or break your chainsaw experience. Automatic oiling systems are worth their weight in gold—they continuously lubricate the chain, extending its life and ensuring smooth cuts.

Tool-free tensioning lets you adjust chain tension quickly without hunting for tools, which is crucial when you’re in the middle of a job. Some models even offer self-sharpening systems that keep the chain cutting optimally with minimal effort.

Consider the weight and balance too—a well-balanced saw feels lighter and causes less fatigue during extended use, which is important when tackling large trees that require multiple cuts.

While these saws can handle large trees, there are situations where calling a professional is smarter. If the tree is near power lines, structures, or requires climbing, the risks often outweigh the savings.

Also consider the tree’s condition—rotting trees or those with tension in the wood can behave unpredictably. If you’re unsure about any aspect of the job, professional arborists have the training and equipment to handle complex situations safely.

Remember: no amount of money saved is worth serious injury. Know your limits and when to call in experts.

For truly large trees, I recommend a minimum 18-inch bar, with 20-24 inches being ideal. The bar needs to be long enough to cut through the diameter of the tree in a single pass if possible. However, bar length isn’t everything—you also need sufficient engine power (50cc+ for gas or high-voltage battery) to drive that longer bar effectively through dense wood.

In my testing, saws with shorter bars struggle with larger diameters, requiring you to cut from both sides, which increases the risk of binding and kickback.

Modern high-voltage battery chainsaws (80V models like the Greenworks) are surprisingly capable for many large tree applications. They can deliver power comparable to mid-range gas saws, but with important limitations.

The main constraints are runtime and continuous power—while they’ll handle most residential large tree work, extended cutting sessions may require battery swaps or recharging. For occasional use on trees up to 20 inches in diameter, a quality battery saw works well, but for professional-level continuous use on massive trees, gas still reigns supreme.

Extremely important—a dull chain makes cutting large trees dangerously difficult. A sharp chain cuts efficiently with less force, while a dull one requires you to push harder, increasing fatigue and kickback risk.

During testing, I found that chains dull surprisingly quickly when cutting through large, dirty wood. Models with self-sharpening systems (like the Oregon CS1500) are fantastic because they let you refresh the edge in seconds without stopping your work. Otherwise, plan on sharpening every few hours of cutting time.

Never operate a chainsaw without essential safety gear. At minimum, you need: chainsaw chaps or pants to protect your legs, safety glasses or goggles, hearing protection, sturdy gloves, and steel-toed boots.

For large trees, I also recommend a hard hat since falling branches are a real hazard. The investment in proper safety equipment is minor compared to the cost of a single emergency room visit—I’ve seen too many preventable accidents from skipped safety precautions.

Regular maintenance is crucial for keeping your chainsaw cutting efficiently. After each use, clean the air filter, check the chain tension, and sharpen the chain if needed. For gas models, use fresh fuel mix and stabilize any fuel left in the tank.

The automatic oiler should be checked regularly—make sure it’s delivering adequate oil to the bar and chain. I also recommend cleaning the bar groove and sprocket periodically to prevent buildup that can affect performance. Proper maintenance not only extends your saw’s life but also makes cutting large trees safer and more efficient.