Felling a small backyard tree is a job many NZ homeowners tackle themselves, but it carries real risks if not done correctly. With the right preparation, tools, and technique, a small tree (generally under 5–6 metres tall with a trunk diameter under 200 mm) can be brought down safely. Anything larger or more complex should be left to a qualified arborist.
Assess the Job Before You Start
Before picking up a chainsaw or handsaw, take time to assess the situation carefully:
- Size and lean: Which way does the tree naturally lean? This is usually your safest felling direction.
- Hazards: Look up and around. Are there power lines, fences, structures, or neighbouring properties nearby? If the tree is near power lines, stop — contact your lines company before doing anything.
- Root system: Is the tree healthy, or are there signs of rot, fungal growth, or instability at the base? A compromised root system makes felling unpredictable.
- Ground conditions: Is the ground level and firm? Sloped or soft ground increases risk.
- Escape routes: Plan two clear escape paths at roughly 45° angles behind and away from the intended fall direction.
If anything about the assessment gives you pause, trust your instincts and call a professional.
Check Council Rules and Consents
Before felling any tree, check with your local council. Many councils have rules protecting certain trees — particularly large, heritage, or notable trees — through district plan provisions or tree protection orders. Removing a protected tree without consent can result in significant fines.
Most small, non-protected trees in a residential backyard won't require a building consent, but it's always worth a quick call to your council to confirm. You can also find general guidance on what work requires consent at MBIE Building Performance.
Gather the Right Tools and Safety Gear
For a small tree, you may only need a sharp handsaw or a small chainsaw. Whatever you use, personal protective equipment (PPE) is non-negotiable:
- Helmet with integrated face shield and hearing protection
- Chainsaw chaps (cut-resistant leg protection) if using a chainsaw
- Steel-capped boots
- Heavy-duty gloves
- High-visibility vest if others are nearby
Never use a chainsaw without appropriate PPE. WorkSafe NZ provides guidance on safe chainsaw use and the hazards involved.
Clear the Area and Set Up a Safety Zone
- Remove any obstacles from your escape routes.
- Keep bystanders — especially children and pets — well clear. A safe exclusion zone is at least twice the height of the tree in all directions.
- Let someone nearby know what you're doing, in case of an emergency.
- Never work alone if you can help it.
The Basic Felling Technique
For a small tree with a clear fall zone, the standard three-cut method works well:
1. The Notch Cut (Face Cut)
On the side facing the intended fall direction, make two cuts to create a notch:
- A top cut angling downward at about 60°
- A bottom cut horizontal (or angling slightly upward) to meet the top cut
The notch should be roughly one-quarter to one-third of the trunk's diameter deep. Remove the wedge of wood.
2. The Back Cut (Felling Cut)
On the opposite side of the trunk, make a horizontal cut slightly above the base of the notch. This releases the tree to fall toward the notch. Stop before cutting all the way through — leave a small hinge of wood (about 10% of the trunk diameter) to guide the fall direction.
3. Step Away
As soon as the tree begins to move, switch off or put down your saw and walk briskly along one of your pre-planned escape routes — never directly behind the falling tree, as the butt can kick back.
Dealing with the Stump and Debris
Once the tree is down:
When to Call a Professional
There are situations where DIY tree felling is simply not safe or appropriate. Call a qualified arborist if:
- The tree is taller than about 5–6 metres or has a large trunk diameter.
- The tree is leaning toward a structure, fence, or neighbouring property.
- There are power lines anywhere near the tree.
- The tree shows signs of disease, rot, or structural weakness — these make behaviour unpredictable.
- The tree is on a slope or in a confined space.
- You're not confident with a chainsaw or the technique.
A professional arborist has the training, equipment, and insurance to handle complex removals safely. You can find qualified local arborists on tradedirectory.co.nz.
A Note on Safety
Tree felling is one of the more hazardous DIY tasks a homeowner can undertake. According to WorkSafe NZ, chainsaw and tree-felling incidents cause serious injuries every year in New Zealand. If you have any doubt at all, the cost of hiring a professional is far less than the cost of an accident.
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