Root Pruning Saws (Buyer’s Guide)

Choose a root-pruning saw for the root you can safely expose, not for buried cutting. A hand root saw fits occasional, controlled cuts; a reciprocating saw with a compatible root-cutting blade can suit repeat work. Keep every cutting edge clear of soil, locate utilities, and ask an arborist to assess roots that may affect tree stability.

If you are weighing tools because a surface root is lifting a path or interfering with planned work, the saw is only part of the decision. A clean cut matters, but so does knowing whether that root should be cut at all. I focus first on exposure, clearance, and the tree’s structure; then I match a saw to the job.

A root-pruning saw is a hand or powered saw used to cut an exposed root. It is not a safe shortcut for sawing through soil. Dirt and grit can quickly damage cutting parts, and cutting a large or important root can affect a tree’s stability. The right choice depends on the root, access, and work plan.

Equipment Selection, Compatibility & Safety Preparation

A suitable root saw gives you control over an exposed root while keeping its blade away from soil, rocks, and hidden obstacles. For occasional work, a hand saw is often the simplest choice. For repeated cuts, a reciprocating saw may help, but only if its manual permits the blade and task.

Which saw suits the job?

A hand root saw uses a toothed blade moved by hand. It needs no fuel or battery and gives the user direct control, though cutting takes more effort. Look for a secure handle, a blade length that fits the work area, and teeth intended for cutting wood. A folding model is convenient, but its lock must hold the blade firmly open.

A reciprocating saw moves a replaceable blade back and forth. It can be useful for repeated cuts on roots that are fully exposed and supported. Before buying a root-cutting blade, check the tool’s approved shank type, blade length, tooth pattern, and capacity. Blade length alone does not prove compatibility. Follow the saw and blade makers’ limits.

A chainsaw is generally a poor choice near soil. Even a little grit can dull its cutters, increase vibration, and raise the risk of binding or chain derailment. Use one only if its manufacturer permits the task and the root is fully exposed and clean. Do not use a chainsaw on a buried or soil-covered root.

Match the tool to the root and site

Choose blade length and tooth pattern for the largest root you expect to cut and the space available around it. Do not buy by engine size or assume a longer blade is always better. For powered saws, confirm the permitted accessories, stroke or operating limits, and duty rating in the exact tool manual.

Before work, locate underground utilities through the appropriate local service. Check for nearby people, traffic, buildings, and other hazards. Wear task-appropriate protective equipment and inspect the tool, guards, handles, fasteners, battery or fuel system, and blade or chain. Do not use damaged or loose parts.

If a root is large, close to the trunk, or likely to support the tree, stop and consult a qualified arborist. There is no universal root diameter or distance from the trunk that makes a cut safe in every case. Key step: Confirm both tool fit and tree stability before starting.

Root Exposure, Field Cutting & Landscape Restoration

Root exposure means carefully uncovering enough of a root to see and cut it without placing the saw in soil. The aim is to keep the cutting edge clean and the work controlled. A saw cannot tell you whether a root is safe to remove; that judgment depends on the tree and site.

Expose and prepare the root

Clear soil from the intended cut with a suitable hand tool, taking care not to strike the root or nearby utilities. Clean the part of the root where the blade will pass. If the root remains buried, has soil packed around it, or cannot be separated from rocks and debris, do not cut through it with a saw.

Set the root and tool so the blade has room to travel without touching the ground. Stabilize the root, but do not put your hands near the cutting path. Keep bystanders out of the work zone. With powered equipment, install only an approved blade and follow the model’s start procedure. For a chainsaw, also check the brake and lubrication as directed by its manual.

Cut with control

Use a steady, controlled cut. Do not twist the blade, force it through a bind, or use the saw to pry the root loose. Stop if the root moves unexpectedly, the blade catches, or the tree’s stability seems uncertain. A powered blade that binds can jump or damage the tool.

An illustrative case: a homeowner wants to remove a surface root beside a walkway. The root is exposed and clean, but it appears to run toward the trunk and supports part of the tree’s root plate. The sensible next step is an arborist’s assessment, not choosing a more powerful saw. By contrast, a small, clearly exposed root in a planned landscape project may be suitable for a hand saw, if the project plan approves the cut.

Restore the site

After approved cutting, manage the site according to the work plan. Backfill and restore disturbed ground as specified, rather than leaving roots exposed or changing drainage without review. If the work involves construction or repeated root cuts, coordinate with the project arborist. Key step: Stop when the root, tool, or site no longer matches the plan.

Inspection, Sharpening & Manufacturer-Specified Tuning

A sharp, correctly fitted cutting edge is easier to control than a dull or damaged one. Inspection is not a substitute for safe technique, but it can reveal problems before a cut. Use the exact saw, blade, and chain instructions; there is no single setting that fits every root saw.

Check the cutting parts

For a hand saw, inspect the blade for cracks, bent sections, loose fasteners, and damaged teeth. Confirm that a folding blade locks securely. Follow the maker’s guidance for sharpening or replacement; some blades are designed to be replaced rather than sharpened.

For a reciprocating saw, inspect the blade and shank for damage, and check that the blade is secured as the tool manual directs. Replace a bent, cracked, or badly worn blade. Confirm the selected blade is approved for the tool and appropriate for the material.

If using a chainsaw in a permitted situation, match chain pitch, gauge, and drive-link count to the saw and bar using the manufacturers’ compatibility information. These are not universal root-saw settings. Set depth gauges, also called rakers, to the chain maker’s specification. A depth gauge set too low can increase kickback risk. Use the specified bar-and-chain oil, and follow the manual for idle and full-throttle speed settings.

Respond to soil contamination

If a chain or blade contacts soil, stop. Do not keep forcing the cut. Soil and grit can rapidly blunt chain cutters, increase vibration and binding, and contribute to derailment risk. Switch off and isolate the tool according to its instructions, then clean and inspect the cutting parts.

For a chainsaw, inspect the chain, bar groove, sprocket, and lubrication system. Sharpen or replace parts as needed under the manufacturer’s guidance. For any powered saw, check the blade and attachment for damage before use again. Key step: If you cannot verify safe condition or fit, do not restart the tool.

Cleaning, Storage & Seasonal Care

Cleaning removes soil and plant debris that can hide damage or interfere with a tool’s operation. Care needs vary by saw type, so follow its manual for cleaning, lubrication, battery care, and storage. Keep cutting tools secured and out of reach when they are not in use.

After cutting, switch off the tool, disconnect the battery or follow the fuel-model shutdown procedure, and wait for moving parts to stop. Let hot components cool before handling them. Brush away debris and inspect the blade, chain, guards, handles, and fasteners. Clean and maintain the tool as its maker directs; do not use a cleaning method that could damage parts.

Store hand saws with blades folded or covered, and keep powered tools in a dry, secure place as directed by the manual. For a two-stroke engine, use only the fuel mix specified for that exact model. A 50:1 ratio applies only when the manufacturer states it. Never run a two-stroke engine on straight gasoline or assume another machine’s ratio is correct.

Before the next job, repeat the inspection and check that the selected blade or chain still matches the tool. Key step: Clean, inspect, and store the saw before moving on from the work site.

Conclusion and FAQ

A good root-pruning saw is one that fits the exposed root, the available clearance, and the manufacturer’s limits. For many occasional cuts, a hand saw offers direct control. A reciprocating saw can suit repeated work when its blade is approved and kept clear of soil. A chainsaw near soil is usually the wrong tool.

The safest buying decision starts before checkout: confirm that the root should be cut, locate utilities, assess stability, and choose a saw that can reach the cut without contacting soil. If the root’s role is unclear or the consequences of failure are high, seek a qualified arborist’s advice.

Frequently asked questions

What is the best saw for cutting tree roots?
For occasional cuts on exposed roots, a sturdy hand root saw is often a practical choice. A reciprocating saw with a compatible root-cutting blade can suit repeated work. The best option depends on root size, access, and tool limits.

Can I use a chainsaw to cut roots?
Only if the manufacturer permits the application and the root is fully exposed and clean. Chainsaw use near soil is generally a poor choice because grit can quickly damage the chain and increase operating risks.

Can a chainsaw cut a buried root?
No. Do not use a chainsaw to cut a buried or soil-covered root. Expose and clean the root first, and stop if you cannot keep the chain clear of soil and debris.

Is a reciprocating saw suitable for root pruning?
It can be suitable for repeated cuts on exposed roots if the saw maker allows the blade and task. Verify the shank, blade length, tooth pattern, and tool capacity in the manuals.

How do I choose root-saw blade length?
Choose a blade that can reach through the largest exposed root while fitting the available clearance. Check the tool’s approved blade capacity; a blade’s stated length alone does not confirm compatibility.

What chain do I need for a chainsaw?
Match chain pitch, gauge, and drive-link count to the saw and bar using their manufacturers’ specifications. Do not assume a common size will fit your model.

What should I do if the chain touches soil?
Stop immediately. Clean and inspect the chain, bar groove, sprocket, and lubrication system. Sharpen or replace parts as required by the manual before using the saw again.

Do I need a special fuel mix for a two-stroke saw?
Use the exact ratio stated in that model’s manual. There is no universal mix; 50:1 is correct only for models whose maker specifies it.

Should I cut a large root near the trunk?
Do not decide by size or distance alone. A root’s effect varies with the tree and site. Ask a qualified arborist to assess roots that may affect stability.

Do I need to locate utilities before root work?
Yes. Contact the appropriate local utility-locating service before digging or cutting near underground services. A saw or hand tool can damage hidden lines.

(This article was written by one of our staff writers, Nathan Pierce. Visit our Meet the Team page.)