Felling Small Trees With a Chainsaw (Field Guide)
Fell a small tree with a chainsaw only when its size, lean, condition, fall path, and escape routes are clear and controllable. Wear chainsaw-rated protective gear, use a saw setup approved by its maker, and follow trained felling methods. If the tree has serious defects, nearby hazards, or an uncertain fall, stop and call a qualified arborist.
A high quote can make a DIY job tempting, especially when a stump is in the way or drawing pests. But felling is not just a matter of cutting through a trunk. The tree can shift, split, or fall in a direction you did not plan. I treat uncertainty as a stop sign, not a reason to rush.
This guide is for a small, free-standing tree with a clear landing area. It is not a guide to removing a hazardous tree, climbing, or cutting a tree trapped against another tree. Those jobs need training and equipment suited to the risk.
Decide whether the tree is safe to fell
A suitable DIY tree is one you can assess from the ground, with a predictable fall direction and room to work. Its trunk should be sound, its crown free of major hazards, and its landing area clear. If any of those points are uncertain, do not start cutting.
Check the tree and landing area
Look at the full tree, not just the trunk. Note the direction the crown leans, the weight of its branches, dead limbs, cracks, decay, and nearby trees. Wind and slope can affect how a tree moves. Do not work beneath dead branches or a hanging limb.
Choose a fall direction that avoids people, buildings, roads, vehicles, fences, and other targets. Power lines are an absolute reason to stop and contact the utility or a qualified tree professional. Do not assume a small tree cannot damage property or cause a serious injury.
In logging operations, OSHA 29 CFR 1910.266 requires at least two tree lengths between a tree being felled and other workers, subject to the standard’s stated exceptions. That is not a substitute for a proper site plan. Follow applicable ANSI Z133 work-zone controls and local rules, and keep bystanders and equipment out of the danger area.
Know the stop signs
Back lean means the tree leans against the planned direction of fall. Heavy side lean, major trunk defects, overhead hazards, and a tight landing area also make a DIY cut unpredictable. A tree under strong stress may split upward in a barber-chair failure, driving the trunk or butt toward the operator.
| Site condition | DIY decision |
|---|---|
| Small, sound tree; clear fall path; manageable lean | Proceed only if trained and equipped |
| Dead limbs, cracks, decay, or strong lean | Stop and get qualified help |
| Tree near a road, building, power line, or occupied area | Stop; use a qualified professional |
| Tree caught, split, or hung after falling | Keep clear; do not cut it free |
Equipment setup, PPE, and site safety
PPE means personal protective equipment. It reduces exposure to common chainsaw hazards, but it does not make an unsafe tree safe. Before starting, confirm that your protective gear fits, the saw’s safety systems work, and your escape paths are clear.
Wear and inspect the right gear
Use chainsaw-rated leg protection, a helmet with eye and face protection, hearing protection, gloves, and protective boots. Wear high-visibility clothing when other people or equipment may be nearby. Keep a first-aid kit accessible and make sure someone knows where you are; do not work alone in a hazardous setting.
Inspect the chain brake, throttle lockout, chain catcher, handles, fasteners, bar, and chain. Check tension and sharpness, and look for damage. Use only the bar and chain combinations approved for your saw. There is no universal bar-length-to-engine-size rule that makes every saw suitable for every tree.
Prepare the saw and work area
Follow the manual for fuel, chain fit, and lubrication. A 50:1 gasoline-to-two-cycle-oil mix is correct only for saws whose makers specify it. Other ratios exist. Never use straight gasoline in a two-stroke saw. A 3/8-inch low-profile pitch and .050-inch gauge are common chain specifications, not a universal match. Pitch, gauge, drive-link count, sprocket, bar, and saw must all be compatible.
Use the bar-and-chain lubricant specified for the operating temperature. Verify oil flow using the maker’s method. Clear brush, trip hazards, tools, and other obstacles from the work area and retreat paths. Identify two routes away from the tree, angled back from its expected fall path, and keep both open.
Field felling and landscape-site control
Felling means directing a standing tree to the ground with planned cuts. A sound hinge is the uncut wood that helps guide the tree’s movement; its size and shape depend on the tree and the method. No single hinge dimension or cut sequence is safe for every tree.
Start and make the planned cuts
Start the saw on stable ground by the manufacturer’s procedure, with the chain brake engaged. Never drop-start it. Warm it as directed, then check idle, throttle response, brake function, and chain lubrication. At idle, the chain must stop; the throttle must return correctly.
Before cutting, confirm your intended fall direction and clear escape path. Use only a felling method you have learned in hands-on training and that fits the tree’s geometry. The notch, back cut, and hinge work together, but their exact design varies. Do not improvise dimensions from a general article.
Keep both hands on the saw, stand on stable footing, and avoid the guide-bar nose and its upper quadrant, where kickback can occur. Keep the bar clear of the ground and nearby objects. Never cut above shoulder height or stand under the crown. If the tree shifts, the cut binds, the hinge behaves unexpectedly, or the trunk starts to split, stop and move away along your planned route.
After the tree falls
Wait until the tree has settled before approaching. Look for hung branches, suspended sections, and wood under tension. Limbs and trunks can move suddenly when cut. Do not cut a lodged tree free or work beneath it; keep people away and call a qualified professional.
A practical field scenario: a small tree in an open yard may look simple, but if its crown reaches over a shed, the target changes the job. Another tree may be short yet unsafe because its trunk is cracked or its lean is strong. Size alone does not decide whether DIY felling is reasonable.
Inspection, chain sharpening, and saw tuning
A sharp, correctly fitted chain cuts more smoothly than a dull one forced through wood. Saw settings are model-specific, so use the owner’s manual and chain maker’s filing chart. Do not guess at engine speed, chain fit, or depth-gauge settings.
Maintain the cutting system
Check chain tension as directed by the saw maker, and recheck it during work when safe. A loose chain can come off; an over-tight chain can damage parts. Keep cutters sharp and even, and use the specified file and angle for that chain.
Depth gauges, also called rakers, control how much wood each cutter takes. A .025-inch setting is a common reference for some chains, not a universal standard. Use the chain maker’s filing chart and gauge tool. Incorrect depth-gauge height can affect cutting and increase kickback risk.
Do not tune idle or maximum no-load speed by ear. Use the manufacturer’s specification and a tachometer where required. Never exceed the stated maximum. If the chain moves at idle, the throttle sticks, or a safety part is damaged, shut the saw down and repair it before use.
Shutdown, cleaning, and storage
Safe handling continues after the tree is down. Stop the chain before setting the saw down, and let hot parts cool before cleaning or refueling. A brief inspection after each job can catch damage before the next start.
Engage the chain brake, shut off the engine, and wait for the chain to stop fully. Allow the engine and muffler to cool. Clean the air intake, bar groove, oil holes, and sprocket area as the manual directs. Check for loose or damaged parts, and reset chain tension only when it is safe to handle.
Refuel away from ignition sources and follow the maker’s storage instructions for fuel. Store the saw securely, out of reach of children, with the bar covered. Before the next job, repeat the inspection rather than assuming the saw is ready.
Frequently asked questions
How small does a tree need to be for DIY felling?
There is no single safe diameter limit. Lean, defects, crown weight, nearby targets, landing space, and your training matter as much as trunk size. If you cannot predict the fall and keep a clear escape route, hire a qualified arborist.
Can I fell a tree with a chainsaw alone?
Do not work alone in a hazardous setting. At minimum, tell someone where you are and how to get help. Keep bystanders out of the work zone, and follow applicable safety rules for the type of work.
How far should people stand from a tree being felled?
Keep everyone outside the drop zone. For logging operations, OSHA requires at least two tree lengths between a tree being felled and other workers, subject to stated exceptions. Site conditions and applicable work-zone rules may require more control.
What should I do if the tree starts splitting?
Stop cutting and retreat by your planned escape route. A vertical split can signal a barber-chair risk, where the trunk may kick toward the operator. Do not try to finish the cut or improvise a fix. Keep others away and call a qualified professional.
Is a 50:1 fuel mix right for every chainsaw?
No. Use the ratio specified by the saw’s manufacturer. Some two-stroke saws require a different mix. Never run a two-stroke saw on straight gasoline.
Can I use any replacement chain that fits the bar?
No. Chain pitch, gauge, drive-link count, bar, and sprocket must match the saw maker’s specifications. Confirm the approved combination in the manual before fitting a replacement.
What if the chain moves while the saw idles?
Shut the saw off and do not use it until the issue is corrected. The chain should stop at idle, and the throttle must return properly. Follow the manual or have a qualified service shop inspect the saw.
Can I cut a tree that has fallen and is caught in another tree?
Do not try to cut it free as a DIY job. The trapped tree may move or release stored force without warning. Keep people away and contact a qualified tree professional.
(This article was written by one of our staff writers, Julian Barrett. Visit our Meet the Team page.)
