Cutting fence palings to a consistent length is one of those jobs that looks simple but can quickly go wrong without the right approach. The best method depends on how many palings you need to cut, what tools you have available, and the finish you're after — but in almost every case, a stop block jig combined with a power saw will give you fast, accurate, repeatable results.
Why Consistent Length Matters
Uneven palings look untidy and can affect how water sheds off your fence, which matters in New Zealand's varied climate — from the wet West Coast to the wind-driven rain of Wellington. Inconsistent lengths also make it harder to maintain a straight top line, which is one of the first things people notice about a fence. Getting this right from the start saves time on fixing and re-fixing later.
Tools You'll Need
Before you start, gather the right gear:
- Circular saw or mitre saw (drop saw) — a mitre saw is the preferred choice for repetitive cuts
- Tape measure and pencil or marking knife
- Speed square or combination square for marking square cuts
- Clamps (at least two)
- Timber offcut for your stop block
- Safety glasses, hearing protection, and dust mask
- Sawhorses or a solid workbench
You'll find most of these tools and consumables at Bunnings or Mitre 10.
The Stop Block Jig Method (Recommended)
This is the go-to technique for cutting multiple palings to exactly the same length — it's what professional fencers use on the job.
How to set it up
- Measure and mark the desired length on your first paling.
- Make your first cut carefully, checking it's square.
- Clamp a timber offcut (your stop block) to your sawhorse, workbench, or mitre saw fence at exactly the measured distance from the blade.
- Butt each subsequent paling against the stop block and cut — no measuring required after that.
With a mitre saw (drop saw), this process is especially quick and accurate. The fixed fence on a mitre saw makes it easy to clamp a stop block, and the blade drops cleanly through the timber every time. If you're cutting 50 or more palings, hiring or borrowing a mitre saw is well worth it.
Using a circular saw
If you only have a circular saw, you can still get consistent results:
- Set up your palings in a row on sawhorses, aligned end-to-end.
- Snap a chalk line across all of them at the cut mark.
- Use a straight-edge guide or timber batten clamped across the palings to guide your saw in a single pass.
- This lets you cut multiple palings in one go — fast and efficient.
Marking Out Accurately
Even with a stop block, your first cut sets the standard for all the rest. Always:
- Measure from the same end of each paling to avoid cumulative errors.
- Use a sharp pencil or marking knife — a blunt pencil can add 1–2 mm of error per cut.
- Check your square regularly, especially if you're working on an uneven surface.
- Allow for the saw kerf (the width of material the blade removes, typically 2–3 mm) when measuring — always cut on the waste side of your line.
Choosing the Right Blade
For clean cuts on pine or treated timber palings, use a fine-tooth crosscut blade (40–60 teeth for a circular saw, or a dedicated crosscut blade for a mitre saw). A coarse ripping blade will leave a rough, splintered edge that looks poor and can hold moisture — a real concern with NZ's treated timber palings, where a rough cut can expose untreated timber beneath the surface coating.
Treating Cut Ends
This is an important step many DIYers skip. Treated timber palings (H3.1 or H3.2 treatment is common for above-ground exterior use in NZ) have preservative throughout, but the cut end should still be treated with an end-grain preservative or timber treatment solution to maintain protection. Check the manufacturer's recommendation for the specific treatment level of your timber. PlaceMakers and Bunnings both stock suitable end-grain treatments.
Safety First
Always follow safe power tool practices:
- Wear safety glasses, hearing protection, and a P2 dust mask (treated timber dust can be hazardous).
- Keep hands well clear of the blade path.
- Ensure palings are firmly supported and clamped before cutting — never hold timber freehand against a power saw.
- Check for nails or knots before cutting — hitting a nail can kick back the saw dangerously.
- Review WorkSafe NZ guidelines if you're unfamiliar with power tool safety.
When to Call a Professional
Most homeowners can safely cut fence palings themselves — it's straightforward DIY work. However, consider hiring a qualified fencer if:
- You're building a large fence and don't have the tools or confidence to work safely with power saws.
- Your fence requires a building consent (fences over 2.5 m high generally require consent under the NZ Building Code — always confirm with your local council, as requirements can vary).
- The fence is on a boundary and involves neighbour agreements or legal survey requirements.
- You want a guaranteed professional finish with minimal waste.
You can find experienced, local fencing professionals on tradedirectory.co.nz.
