Pruning Saw Guide: Folding, Fixed and Bow Saws

When a Pruning Saw Makes Sense

Hand pruners and loppers handle the majority of routine cuts, but once a branch exceeds roughly 1½ inches in diameter, a pruning saw becomes the safer, cleaner choice. NC State Extension explains that if there is any question whether a job calls for loppers or a hand saw, it is often best to choose the saw. A saw can reach into tighter branch unions and is far less likely to crush living tissue. Iowa State University Extension draws the line at branches larger than 1¾ inches, while UC Master Gardeners note that most pruning saws are designed for wood between 2 and 3 inches thick, though with extra effort they can tackle slightly larger material. UC Master Gardeners warn that forcing a tool through a branch larger than it was designed to cut risks personal injury and damage to the tool.

Pruning Saw Types at a Glance

The table below summarizes the main saw styles a homeowner is likely to encounter.

Blade Shape and Tooth Design

Not all pruning saws cut the same way. NC State Extension reports that most newer saws have blades that cut only on the pull stroke. This pull-stroke design lets you put more power into the cut while keeping better control. Iowa State University Extension adds that many pruning saws have teeth oriented to cut on both the push and pull strokes, which reduces the effort and time needed to finish a cut. The difference often comes down to the tooth pattern.

Tri-edged blades, sometimes called turbo or three-angled blades, are increasingly common. According to NC State Extension, each tooth has three bevels, producing a fast, smooth cut with little clogging or gumming. UC Master Gardeners describe tri-edge saws as self-cleaning and note they are replacing traditional lance-toothed saws for garden use. Some saws even mix smaller teeth near the tip to start a cut easily and larger teeth toward the back for faster removal, a design highlighted by NC State Extension.

Curved blades generally require less effort than straight ones because the teeth penetrate the wood more easily, UC Master Gardeners explain. A solid connection between the blade and the handle is essential, and a wooden handle can absorb more vibration than a plastic one.

Folding, Fixed, and Bow Saws: Trade-offs

Folding pruning saws are popular because they are easy to carry safely around the garden. Iowa State Extension points out that the folding design makes them convenient, and UC Master Gardeners associate them with smaller branch work.

UC Master Gardeners suggest fixed-blade saws for larger branches. They are often available in curved or straight profiles, and many come with a dedicated scabbard. NC State Extension recommends buying a scabbard or sheath with any saw to protect the investment.

Bow saws occupy a different niche. NC State Extension states that most people do not use them for pruning because the bow shape gets in the way inside tight branch unions. Instead, a bow saw excels at cutting downed wood, debris, or firewood. UC Master Gardeners add that a sharp bow saw and a strong arm can cut medium-sized branches quicker than many power saws. For home use, a 21- or 24-inch bow saw is typically sufficient, UC Master Gardeners add that the big, wide-splayed teeth clear plenty of wood as they cut. Bow saws can handle branches up to about a foot thick, according to UC Master Gardeners.

Pole Saws for High Branches

For more on reaching high limbs, see our pole pruner guide and pole saw vs chainsaw comparison.

When a limb is out of reach, a pole saw lets you stay on the ground. Iowa State Extension describes a pole saw as a saw blade attached to a long pole, and both Iowa State and Nebraska Extension note that pole saws and pole pruners are generally used on branches up to 2 inches in diameter. UC Master Gardeners extend that range to 3 inches for some models. For the cleanest cuts, UC Master Gardeners recommend a bypass-style pruner head, and many pole tools accept interchangeable saw and pruner heads.

Using a pole saw is physically demanding. UC Master Gardeners caution that balancing the pole, positioning the blade correctly, staying clear of falling branches, and the strain on your shoulders make the work tiring. NC State Extension advises taking frequent rest breaks to avoid long-term injury. Modern pole designs often use rigid aluminum sections that are oval-shaped and quick-locking, which helps the pole slide through your hands smoothly. Fiberglass poles are lighter but more flexible, making control harder. The University of Maryland Extension notes that fiberglass and plastic poles do not conduct electricity the way aluminum poles do, but NC State Extension stresses that only a specially trained utility arborist should work near electrical lines, regardless of the pole material. Never prune from a ladder unless you are an experienced arborist; the safer approach is to hire a certified professional or use a bucket truck or cherry picker for tall trees.

Care, Sharpening, and Sanitizing

A sharp saw makes cleaner cuts and reduces fatigue. The University of Maryland Extension advises keeping cutting edges sharp with a file, diamond sharpener, or whetstone. For pruners and loppers, see our sharpening guide. For pruning saws specifically, UC Master Gardeners recommend having a dull blade professionally sharpened or installing a replacement blade.

After each use, clean the blade to remove sticky sap. UC Master Gardeners suggest soap and water, followed by a light coat of lubricating oil or a spray of cooking oil to prevent rust. Lubricate any moving joints to keep the tool operating smoothly.

If you are cutting diseased wood, sanitize the blade between cuts to avoid spreading infection. The University of Maryland Extension recommends 70 percent alcohol or a bleach solution diluted one part bleach to nine parts water. Because bleach is corrosive to metal, rinse the blade thoroughly afterward. UC Master Gardeners add that rubbing alcohol, Lysol, or Listerine can also be used; immerse the blade for one to two minutes. Pruning during the dormant season, when disease organisms are less active, reduces the need for frequent sanitizing.

Safety

Before you start, inspect the saw. UC Master Gardeners advise checking that all movable joints are lubricated and tight and that the blade is sharp. Always wear safety glasses. Gloves, long sleeves, and long pants add protection from scratches. Carry the saw with the sharp end pointed down. Never force a saw to cut a branch larger than it was designed to handle; doing so risks personal injury and tool damage. Most accidents happen when the user is fatigued, so stop when you feel yourself tiring.

Frequently asked questions

What size branch can a pruning saw cut?

Most pruning saws are designed for branches between 2 and 3 inches in diameter, though with extra effort they can handle slightly larger wood. UC Master Gardeners state that a bow saw can cut branches up to about a foot thick. For high limbs, pole saws are typically rated for branches up to 2 or 3 inches, depending on the model.

Do I need a folding saw or a fixed-blade saw?

Folding saws are convenient and safe to carry, making them a good choice if you move around the yard frequently and cut smaller branches. Fixed-blade saws offer a rigid, uninterrupted blade that many gardeners prefer for larger cuts. UC Master Gardeners associate folding saws with smaller branches and fixed-blade saws with larger work, but both styles can handle typical homeowner pruning tasks.

How do I clean sticky sap off a pruning saw?

UC Master Gardeners recommend washing the blade with soap and water to remove sap. After drying, apply a light coat of lubricating oil or spray with cooking oil to guard against rust. This routine keeps the saw cutting smoothly and extends its life.

For more on choosing and maintaining pruning tools, visit our pruning tools guide.

Sources

• NC State Extension: Tools to Make the Cut
• Iowa State University Extension: Guide to Pruning Equipment
• University of Maryland Extension: Pruning Tools
• Nebraska Extension in Lancaster County: The Basics of Pruning Tools
• UC Master Gardeners: Pruning Tools