If you’re renovating, repairing walls, or getting a room ready for painting, you’ll often hear the terms “Gib” and “plaster” used interchangeably. In New Zealand, that can be confusing, because they refer to different things in the wall and ceiling system.
The short answer is that plasterboard (often called Gib) is the board fixed to the framing, while plaster is the compound used to fill joints, stop corners, repair damage, and create a smooth finish. Knowing the difference helps you plan the right prep before painting.
What plasterboard Gib is
Plasterboard is the flat sheet material that forms the surface of most interior walls and ceilings in Kiwi homes. In New Zealand, many people call it Gib because Gib is the best-known brand, much like people say “Hoe” for vacuuming in some homes and mean the machine rather than the brand.
It is usually fixed to timber or steel framing, then stopped and sanded so it looks seamless. Plasterboard gives you the base surface, but on its own it is not the finished wall.
- Commonly used for walls and ceilings
- Covers the framing of the house
- Needs stopping and sanding before painting
- Can be lined with different thicknesses depending on the job
What plaster is
Plaster is the finishing material used over plasterboard and other surfaces. In decorating work, it usually means joint compound, stopping compound, skim coat, or repair plaster, depending on the job.
Plaster is used to fill screw holes, tape and cover joins, smooth out dents, repair cracks, and create an even surface. In older homes, plaster can also refer to traditional solid plaster walls and ceilings, which are different again from modern plasterboard lining.
Why the difference matters before painting
A wall can look fine at first glance, but if the plasterboard joints are poorly stopped or the surface has not been sanded properly, those flaws will show through paint. Glossy or low-sheen finishes can highlight imperfections, especially in strong Auckland light.
Good prep is what separates an average paint job from a crisp, premium finish. If the board is damaged, the plaster is cracked, or the surface has been patched badly, the paint will only be as good as the preparation underneath.
- Uneven stopping can show as shadows after painting
- Poor sanding can leave ridges or tool marks
- Cracks may reopen if the underlying issue is not fixed
- Stains and damaged areas often need sealing before topcoats
When to call Steve
If you are unsure whether your wall needs patching, stopping, skim coating, or just repainting, it is worth getting advice before you start. Steve is a Kiwi and a trade-qualified painter, and he can assess the surface properly, explain what’s actually needed, and help you avoid painting over defects that will come back later.
For homeowners and property managers in Auckland, especially in higher-end homes where finish quality really matters, professional prep can make all the difference to the final result. If you want a smooth, durable surface ready for paint, contact Steve, a Kiwi and a trade-qualified painter, for practical advice or a proper quote.
Frequently Asked Questions
Is Gib the same as plasterboard?
Yes. In New Zealand, Gib is the common name people use for plasterboard, although Gib is technically a brand name.
Can you paint straight onto plasterboard?
Not usually. Plasterboard needs joints, screws, and repairs stopped, sanded, and sealed first so the paint finishes evenly.
What’s the difference between plaster and stopping?
Stopping is the process of filling and finishing the joints and fixings in plasterboard. Plaster is the material used to do that work.
Need a hand with your project?
Happy to tackle some of it yourself? Great — but for anything you’d rather leave to a professional, Steve Lunjevich is a Kiwi and a trade-qualified painter with 20+ years’ experience. Call or email for honest advice or a free, no-obligation quote.