Yes — building a simple TV unit from cabinet-grade plywood is absolutely achievable for a confident DIYer. It requires no building consent, no licensed trade work, and the materials are readily available at NZ timber and hardware stores. With careful planning, the right sheet goods, and some patience, you can produce a sturdy, good-looking piece of furniture at a fraction of the cost of buying retail.
Choosing the Right Plywood
Cabinet-grade plywood (sometimes called furniture-grade or hardwood-faced plywood) is the go-to material for this kind of project. Unlike structural or construction ply, it has a smooth, sanded face veneer — typically birch, oak, or poplar — with minimal voids in the core, making it ideal for painted or clear-finished furniture.
In New Zealand, look for:
- Birch plywood – a popular choice for its fine grain, consistent core, and excellent screw-holding ability. Commonly available in 2400 × 1200 mm sheets.
- MDF-core plywood – heavier but very flat; good for painted finishes.
- Standard thicknesses – 18 mm for carcass sides, shelves, and tops; 12 mm for backs and internal dividers.
You'll find cabinet-grade ply at Placemakers, Mitre 10, and Bunnings. Ask staff specifically for furniture or cabinet-grade stock — quality varies between suppliers and batches.
Planning Your Design
Before cutting anything, sketch your unit to scale and write a cut list. A basic TV unit typically includes:
| Component | Suggested Thickness | Notes |
|---|---|---|
| Top panel | 18 mm | Spans full width |
| Side panels (×2) | 18 mm | Full height |
| Bottom panel | 18 mm | Sits inside sides |
| Back panel | 12 mm | Glued and nailed into rebate |
| Internal shelves | 18 mm | Fixed or adjustable |
| Doors / open face | 18 mm or open | Optional |
Keep proportions practical: a typical TV unit sits 400–500 mm high, 1200–1800 mm wide, and 350–450 mm deep. Make sure the unit is deep enough to house your cable management and any set-top boxes or gaming consoles.
Tools You'll Need
- Circular saw or track saw – for breaking down full sheets accurately
- Jigsaw – for cutouts (cable holes, etc.)
- Drill/driver – for pocket screws or dowels
- Clamps – plenty of them; at least 4–6 bar clamps
- Tape measure, square, and marking gauge
- Random orbital sander – for finishing
- Router (optional) – for rebating the back panel recess
If you don't own a track saw, many hardware stores offer a panel-cutting service — ask at Placemakers or Bunnings. Getting your sheets cut in-store saves effort and improves accuracy.
Joinery Methods for Beginners
The simplest and most beginner-friendly joinery options are:
- Pocket screws – using a pocket-hole jig (such as a Kreg jig). Fast, strong, and forgiving. Screws are hidden on the inside face.
- Dowels – traditional and clean-looking, but require more precision.
- Biscuits – good for alignment, used with wood glue.
- PVA wood glue + screws – always use glue alongside mechanical fasteners for a strong, lasting joint.
For a TV unit, pocket screws and PVA glue is a perfectly solid combination. Pre-drill all holes to avoid splitting the plywood face veneer.
Finishing the Edges and Surface
Raw plywood edges show the layered core and need to be covered. Options include:
- Iron-on edge banding – pre-glued veneer tape that matches your ply face. Apply with a household iron, trim with a sharp knife, and sand flush. Available at most hardware stores.
- Solid timber edging – glue and pin a thin strip of matching timber (e.g., 18 × 6 mm rimu or pine) to exposed edges for a more premium look.
- Filler and paint – if painting, fill edges with a fine surface filler, sand smooth, then prime and paint.
For a painted finish, Resene and Dulux both offer excellent water-based furniture enamels that are hard-wearing and easy to apply. For a natural timber look, a clear polyurethane or hardwax oil will protect the veneer beautifully.
Stability and Safety Tips
- Wall-fix your unit if it's tall or if children are in the home. A simple L-bracket screwed into a wall stud prevents tip-overs — this is especially important under general household safety guidelines.
- Ensure the unit can handle the weight of your TV. Most 18 mm birch ply tops are more than adequate for typical flat-screen TVs.
- Plan cable management from the start — drill a 50–60 mm hole in the back panel or top for routing cables neatly.
- Check your floor is level before assembly; use adjustable feet or shims if needed.
When to Call a Professional
Building a TV unit involves no restricted trade work — no electrical, plumbing, or structural elements — so there's no legal requirement to hire a professional. However, consider calling a qualified cabinetmaker if:
- You want complex joinery, integrated lighting, or a built-in look that requires precise fitting to walls and floors.
- You're not confident using power tools safely — WorkSafe NZ has good guidance on safe tool use.
- The unit needs to integrate with existing cabinetry or match a specific timber species.
- You simply want a guaranteed, high-quality result without the learning curve.
A skilled local cabinetmaker can often build a custom unit faster than you'd expect, and the finish will be professional. You can find qualified cabinetmakers in your area on tradedirectory.co.nz.
