Drilling consistent shelf pin holes without a commercial jig is completely achievable with a bit of preparation and a simple homemade template. The key is creating a reliable, repeatable guide so every hole lands in exactly the same position — giving you level, wobble-free shelves every time.
Why Consistency Matters
Shelf pins (also called shelf supports or shelf studs) rely on pairs of holes being perfectly level with each other across both cabinet sides. Even a millimetre or two of misalignment will cause your shelf to rock or sit at an angle. Getting this right from the start saves a lot of frustration later.
The DIY Pegboard Template Method
The most popular trade trick for drilling shelf pin holes without a bought jig is to make your own drilling template from a strip of pegboard or MDF.
What You'll Need
- A strip of 5 mm pegboard (the pre-holed type, available at Bunnings or Mitre 10) or a length of MDF/plywood at least 600–900 mm long
- A 5 mm brad-point drill bit (most standard shelf pins are 5 mm diameter — always check your pin size first, as sizes can vary)
- A power drill with a depth stop collar or a piece of masking tape wrapped around the bit to mark drilling depth (typically 10–12 mm deep)
- A sharp pencil or marking knife
- A square and tape measure
- Two clamps or a spare hand to hold the template steady
Making a Pegboard Template
Pegboard already has holes drilled at regular 25 mm centres, which happens to be the standard 32 mm system spacing used in cabinet making — though note that pegboard holes are at 25 mm, not 32 mm. Many NZ cabinet makers use 32 mm spacing as it aligns with the European cabinet standard. If you want true 32 mm spacing, you'll need to make your own MDF strip template instead (see below).
Using pegboard: Simply select every second hole along a single row to give you 50 mm spacing, or use every hole for 25 mm spacing. Mark a clear reference edge on one end — this is your datum edge that always registers against the front or back of the panel.
Making an MDF strip template: Cut a strip of 9–12 mm MDF about 60 mm wide and as long as your cabinet interior. Mark a centre line down the length. Using a square, mark hole positions at your chosen spacing (32 mm is standard). Drill your holes carefully on a drill press if you have access to one, or clamp the strip firmly and use a square to keep your drill vertical. Once drilled, this strip becomes your master template — treat it carefully.
Setting Your Drilling Depth
This step is critical. Drilling too shallow means pins won't seat properly; too deep risks breaking through the panel face. Wrap masking tape around your drill bit at the correct depth (usually 10–12 mm, but check your specific shelf pin length). A proper depth stop collar is even better and costs only a few dollars at hardware stores. Always test on a scrap piece of the same material first.
Registering the Template on Your Panel
This is where most DIYers go wrong. You must register your template from the same reference point on every panel — typically the front edge of the cabinet side.
- Clamp or hold the template firmly against the panel with the datum edge flush to your chosen reference edge.
- Mark the top of the template with a pencil so you always orient it the same way.
- Drill through each selected hole, keeping the drill perfectly vertical.
- Move the template up or down as needed to extend the hole row, always re-registering from the same datum edge.
Repeat this process on the opposite cabinet side, making sure the template is flipped (mirrored) correctly so the holes align across the cabinet.
Keeping the Drill Vertical
Without a drill press, keeping your bit perfectly vertical is the biggest challenge. A few tips:
- Use a drill guide block — a small square block of timber with a hole drilled through it on a drill press. Clamp this over each hole position as a guide.
- Work slowly and check your drill angle from two directions before committing.
- Brad-point bits are far more accurate than standard twist bits for this work, as they self-centre and cut cleanly in timber and sheet material.
Choosing the Right Material and Pin Size
Most NZ-made cabinetry uses 16–18 mm melamine-faced particleboard or MDF. Standard shelf pins are 5 mm diameter, but always check before drilling — some European or imported hardware uses different pin sizes. Your local PlaceMakers or hardware store can help you match the right pin to your cabinet system.
For solid timber or plywood cabinets, the same method applies, though solid timber can be more forgiving of minor variations.
Common Mistakes to Avoid
- Not marking a datum edge — always reference from the same edge on every panel
- Skipping the depth stop — inconsistent depth causes pins to sit at different heights
- Flipping the template incorrectly — left and right panels are mirror images; mark your template clearly
- Using a worn or blunt bit — this causes tear-out and oversized holes that won't grip pins firmly
When to Call a Professional
If you're building a full kitchen or wardrobe fit-out, or working with expensive materials like solid timber or veneer panels, it's worth engaging a qualified cabinet maker to ensure a professional result. A cabinet maker will have a proper 32 mm system jig or CNC equipment that guarantees perfect results every time. You can find experienced local cabinet makers on tradedirectory.co.nz. There are no restricted licensing requirements for cabinet making in NZ, but quality and experience matter greatly for a lasting result.
Note: If your cabinetry project involves any electrical work (such as under-cabinet lighting), that work must be carried out by a registered electrician — see the Electrical Workers Registration Board for more information.
