Many folks wonder, Can a chainsaw handle cutting large trees? It might seem a bit tricky if you’re new to using chainsaws. You might worry about safety or if your saw is strong enough. Don’t sweat it!
We’ll walk through this step by step. Let’s get your questions answered simply. We’ll cover what you need to know to tackle those big jobs with confidence.
Key Takeaways
- Learn what makes a chainsaw suitable for large trees.
- Discover the essential features to look for in a powerful chainsaw.
- Understand the safety steps needed when cutting big trees.
- Find out about the correct techniques for felling and limbing large trees.
- Know when to call a professional for very large or tricky tree removals.
Chainsaw Power for Big Trees
Matching Chainsaw Size to Tree Diameter
When you’re thinking about cutting big trees, the size of your chainsaw matters a lot. It’s not just about having a chainsaw; it’s about having the right chainsaw. A small saw might struggle and overheat with a large tree, making the job harder and less safe.
You need a saw with enough power and a long enough bar to get the job done efficiently.
Chainsaw power is usually measured in cubic centimeters (cc). For cutting larger trees, you’ll want a saw that’s at least 50cc. Some professionals use saws that are 70cc or even more for really huge trees.
The bar length is also key. A longer bar lets you cut through thicker trunks in fewer passes. For big trees, a bar of 18 inches or more is often recommended.
Engine Size and Performance
The engine size, measured in cc, is like the heart of your chainsaw. A bigger engine means more power. This power is what helps the saw cut through tough wood quickly.
For smaller trees, a 30-40cc saw might be fine. But for trees that are 18 inches or wider, you’ll need to step up to a more powerful engine.
Think of it like this: trying to push a heavy car by yourself versus pushing a small toy car. The bigger engine has the “oomph” to push through thick wood without bogging down. When a chainsaw bogs down, it slows its chain speed and struggles to cut.
This can make the cut uneven and increase the risk of the saw getting stuck. A powerful engine keeps the chain moving at a good speed, making clean, fast cuts.
Here’s a quick look at general recommendations:
| Tree Diameter (Approx.) | Recommended Engine Size (cc) | Recommended Bar Length (Inches) |
|---|---|---|
| Up to 12 inches | 30-45 cc | 12-16 inches |
| 12-18 inches | 45-60 cc | 16-18 inches |
| 18 inches and larger | 50-75+ cc | 18-24+ inches |
These are general guidelines. Always consider the type of wood, as hardwoods are denser than softwoods and require more power.
Bar Length and Cutting Capacity
The bar is the metal strip that the chain runs around. The length of this bar directly affects how deep you can cut in one pass. If you’re cutting a tree that’s 2 feet wide, a 12-inch bar simply won’t be long enough to cut through it in one go.
You’d have to cut from both sides and meet in the middle, which is much harder and less safe for large trees.
For large trees, a longer bar is essential. An 18-inch bar can handle trees up to about 16 inches in diameter effectively. A 20-inch bar can tackle trees around 18 inches or more.
Professional loggers often use bars that are 24 inches, 30 inches, or even longer for massive timber.
However, longer bars come with a trade-off. They add weight to the chainsaw and require more power to operate efficiently. A very long bar on a smaller engine will perform poorly.
So, it’s important to match the bar length to the engine’s capability and the size of the trees you expect to cut.
Safety First When Cutting Large Trees
Personal Protective Equipment (PPE)
When you’re dealing with large trees and powerful chainsaws, safety is the number one priority. Always wear the right gear to protect yourself from serious injury. This equipment is not optional; it’s absolutely essential.
The most important pieces of PPE include:
- Chainsaw Chaps or Pants: These are made of special material that can stop a moving chain. If the chain touches your leg, the material snags the chain and stops it quickly, preventing a cut. They are often made with multiple layers of ballistic nylon or Kevlar.
- Safety Helmet: A good helmet protects your head from falling branches or if you accidentally bump your head. It should also have a face shield or a mesh screen to protect your eyes and face from sawdust and flying debris.
- Hearing Protection: Chainsaws are incredibly loud and can cause permanent hearing damage. Use earplugs or earmuffs designed for industrial noise levels. They should reduce the noise to a safe level without completely blocking out all sounds, so you can still hear your surroundings.
- Safety Gloves: Gloves protect your hands from cuts and also provide a better grip on the chainsaw, reducing the chance of it slipping. Look for gloves made of durable leather or synthetic materials.
- Steel-Toed Boots: Sturdy boots protect your feet from falling logs or branches and also provide good traction on uneven ground. They should be waterproof and have good ankle support.
Wearing all these items might seem like a lot, but each one plays a vital role in keeping you safe.
Understanding the Danger Zone
Cutting large trees creates a “danger zone” around the tree that you must be aware of. This zone extends at least twice the height of the tree. Why so far?
Because when a tree falls, it can travel sideways, and branches can fly off unpredictably. Never let anyone enter this zone while you are cutting or while the tree is falling.
It’s also crucial to plan your escape route before you even start the saw. This should be a clear path, at least 45 degrees away from the direction the tree is expected to fall. You should be able to move quickly and easily if needed.
Clear any obstacles like small branches, rocks, or tools from your escape path.
When you are working, always stay aware of your surroundings. Look up for dead branches that could fall unexpectedly. Listen for sounds that might indicate the tree is about to move.
Never work alone when felling large trees. Have someone with you who can help in an emergency or call for assistance.
Chainsaw Kickback Prevention
Kickback is one of the most dangerous hazards with chainsaws. It happens when the tip of the guide bar (the “kickback zone”) hits an object, or when the wood closes in and pinches the chain in the cut. The saw is then violently thrown backward and upward toward the operator.
It can happen in a split second and cause severe injuries.
To prevent kickback:
- Avoid Cutting with the Tip: Never cut with the very end of your guide bar. This is the most common cause of kickback. Always make sure the tip is clear of any obstructions.
- Maintain Proper Chain Tension: A loose chain can increase the risk of kickback. Check your chain tension regularly. It should be snug but still able to move freely around the bar when you pull it by hand.
- Use a Chainsaw with a Chain Brake: Most modern chainsaws have a chain brake. This is a metal guard in front of the top handle. If the saw kicks back, it can hit your hand and activate the brake, stopping the chain instantly. Make sure yours is working correctly.
- Keep the Saw Sharp and Clean: A dull chain requires more force to cut, increasing the chance of the saw pinching. A clean saw also runs more smoothly.
- Proper Grip: Always maintain a firm grip with both hands on the chainsaw handles. Wrap your thumbs around the handles. This helps you control the saw if it starts to move unexpectedly.
Understanding kickback and how to avoid it is vital for safe chainsaw operation.
Techniques for Cutting Large Trees
Planning the Fall (Felling)
Felling a large tree is like performing a complex operation. You need a plan before you make a single cut. First, assess the tree.
Is it leaning naturally? Are there any large dead branches (widowmakers) that could fall? What is around the tree that you need to protect, like buildings, fences, or other trees?
The direction the tree will fall is determined by its natural lean. You want to make cuts that encourage it to fall in that direction. If the tree is leaning, you’ll want to fall it in the direction of the lean.
If it’s standing straight, you might need to use wedges to guide its fall.
Your felling cuts are crucial for controlling the fall. There are two main types of cuts: the notch (or face cut) and the back cut. The notch is made on the side where you want the tree to fall, and it’s usually about one-third of the way through the tree’s diameter.
The back cut is made on the opposite side and is slightly higher than the bottom of the notch.
Making the Notch Cut
The notch, also called the face cut, is the first step in felling a tree. It directs the tree’s fall. For most trees, a conventional notch is used.
This involves two cuts: an upper angled cut and a lower horizontal cut.
First, you make a downward angled cut. This cut should go about one-quarter to one-third of the way into the tree. The angle is typically around 45 to 70 degrees.
Next, you make a horizontal cut that meets the angled cut. This second cut should be perfectly level. When you remove the wedge of wood created by these two cuts, you create an opening.
This opening guides the tree to fall in the desired direction.
The depth and angle of the notch are critical. A notch that is too shallow might not control the fall properly. A notch that is too deep can weaken the tree too much and cause it to fall unpredictably or even split.
It’s important that the two cuts meet precisely.
The Back Cut and Felling
After the notch is made, the next step is the back cut. This cut is made on the opposite side of the tree from the notch. It’s made slightly higher than the bottom of the notch.
The goal is to leave a “hinge” of wood between the notch and the back cut. This hinge is what controls the direction and speed of the fall.
The back cut should be made parallel to the horizontal cut of the notch. Leave a hinge of wood about one-tenth of the tree’s diameter. This hinge acts like a door, allowing the tree to fall forward while still being connected.
As you make the back cut, listen for cracking sounds. If you hear them, the tree is starting to move. It’s time to stop cutting and retreat using your planned escape route.
You might need to insert felling wedges into the back cut as you make it to help push the tree over and prevent the saw from getting pinched.
Once the tree starts to fall, move away quickly and safely. Never turn your back on a falling tree. Keep an eye on it as you retreat to your escape route.
Limbing and Bucking Large Logs
After the tree is safely on the ground, the next steps are limbing and bucking. Limbing is the process of removing the branches from the trunk. Bucking is cutting the trunk into smaller, manageable sections.
These steps also require specific techniques to stay safe.
When limbing, always stand on the side of the trunk opposite to the branch you are cutting. This way, if the branch springs back, it will hit the log, not you. Cut from the base of the branch towards the trunk.
For larger branches, you might need to make two cuts: an undercut to prevent tearing, followed by a top cut.
Bucking involves cutting the trunk into desired lengths. Be aware of the tension within the log. If the log is supported at both ends, the top is under compression and the bottom is under tension.
If it’s supported at one end, the entire log might be under tension.
If cutting a log supported at both ends, start by cutting from the top about one-third of the way through. Then, finish the cut from the bottom. This prevents the saw from getting pinched as the log sags.
If cutting a log supported at one end, you might need to cut from the bottom first. Always be mindful of where the log rests and how it might shift when you cut.
When to Call the Professionals
Assessing Tree Risk and Complexity
Not every tree needs to be cut by a homeowner. It’s important to know when a job is too big or too risky for you to handle. Trees that are very large, diseased, leaning precariously, or located near structures like houses, garages, or power lines are considered high-risk.
These situations require specialized knowledge and equipment.
A professional arborist has the training to assess these risks accurately. They can tell you how a tree is likely to fall, identify potential hazards you might miss, and have the equipment to manage those hazards safely. They understand tree biology and mechanics in ways that most amateurs do not.
Consider the size. If the trunk is wider than the longest bar on your chainsaw, you are probably in over your head. Also, if the tree is taller than you can comfortably reach with the chainsaw, it’s a sign to call in the experts.
Understanding the Benefits of Professional Services
Hiring a professional tree service offers several significant benefits. Firstly, and most importantly, it ensures safety. They have the experience, training, and safety gear to handle dangerous situations without putting themselves or your property at risk.
This is especially true for felling large trees in confined spaces or near obstacles.
Professionals also have specialized equipment. This can include cranes, rigging systems, bucket trucks, and specialized chainsaws that are far more powerful and capable than what a homeowner typically owns. They can also dispose of the wood and debris efficiently, saving you a lot of hard work.
Furthermore, professionals are insured. If something goes wrong, their insurance covers the damage, not you. This peace of mind is invaluable when dealing with potentially catastrophic situations.
They can also provide advice on tree health and care for the trees you decide to keep.
Factors Indicating Professional Help is Needed
Several factors strongly suggest you should hire a professional:
- Proximity to Structures: If the tree is close to your house, garage, sheds, fences, or any other building, the risk of damage is too high for an amateur. Professionals can often fell trees in tight spots using specialized techniques.
- Tree Health and Stability: Diseased trees, trees with significant rot, or trees that are leaning severely are unpredictable. They can break apart unexpectedly during cutting or fall in uncontrolled directions. Experts can assess the stability and advise on the safest approach.
- Power Lines: Never attempt to cut a tree that is touching or near power lines. This is an extremely dangerous situation that can lead to electrocution. Utility companies or specialized tree services are equipped to handle these hazardous trees.
- Tree Size and Height: As mentioned, very large trees require powerful equipment and advanced techniques. If the tree is significantly taller than you can safely reach or wider than your chainsaw’s capacity, it’s a job for the pros.
- Difficult Terrain: If the tree is on a steep slope, uneven ground, or in a hard-to-reach location, felling it safely can be extremely challenging. Professionals have the gear to operate in difficult conditions.
When in doubt, always err on the side of caution and get a professional opinion. The cost of hiring an arborist is often far less than the cost of repairing damage from an unsuccessful DIY felling attempt.
Frequently Asked Questions
Question: What is the smallest chainsaw I can use for big trees?
Answer: For truly large trees, a small chainsaw (under 45cc with a bar less than 16 inches) is generally not suitable. You’ll likely need a saw with at least a 50cc engine and an 18-inch or longer bar.
Question: How do I know if my chainsaw is powerful enough?
Answer: If your chainsaw struggles to cut through wood, bogs down frequently, or takes a long time to make cuts, it’s probably not powerful enough for large trees. A powerful saw will cut smoothly and efficiently.
Question: Is it safe to cut large trees by myself?
Answer: Cutting large trees is inherently dangerous. It is highly recommended to have at least one other person with you for safety and assistance. For very large or complex trees, hiring a professional is the safest option.
Question: What is a “hinge” in tree felling?
Answer: A hinge is a section of uncut wood left between the notch and the back cut. It controls the direction and speed of the tree’s fall, preventing it from toppling over too quickly or in an uncontrolled manner.
Question: Can I use any chainsaw to cut firewood from a fallen large tree?
Answer: While you might be able to buck up a fallen large tree with a smaller saw, it will be slow and hard work. A more powerful chainsaw with a longer bar will make this task much easier and faster.
Final Thoughts
So, Can a chainsaw handle cutting large trees? Yes, but it depends on having the right saw and knowing how to use it safely. A powerful chainsaw with a suitable bar is essential. Always prioritize safety with proper gear and techniques.
If the tree is too big or risky, professional help is the smartest choice. You can tackle smaller large trees with preparation and the right tools.
