Guide · level 5 plaster finish

Levels of finish (Level 4 vs Level 5): what it means for your quote

Avo estimating team · Last checked against the sources below on 19 October 2026

AS/NZS 2589 sets levels of finish for plasterboard. Level 4 is the standard finish for walls and ceilings that will be painted, and applies unless something else is specified. Level 5 is the highest level, for gloss or darker paints and strong glancing light, and costs more. Agree the level in writing and measure Level 5 areas on their own lines.

Levels 3, 4 and 5 in plain words

Summarised from Dulux Trade’s guide; the standard is AS/NZS 2589:2017.
LevelWhat it is for
3Areas that won’t be decorated — above ceilings, inside service shafts
4The standard finish where the board will be painted; the default unless specified
5The highest finish, when specified: a surface “as free as possible from surface defects and visual blemishes”

Level 4 is the default

Dulux Trade notes that most domestic and commercial buildings are finished to Level 4. If the drawings and specification say nothing, price Level 4 — and say so in your inclusions.

When Level 5 is worth it

Level 5 is recommended where higher-sheen paints or darker feature colours will show imperfections, and where critical lighting — low-angle glancing light or spot lighting — falls across flat or low-sheen painted surfaces. Long hallways with downlights and walls beside big windows are typical.

Agree it in writing

The level of finish is easy to argue about after the paint goes on. Name it in the scope, room by room if it varies: “Level 4 throughout; Level 5 to the living room feature wall.”

What it changes in the takeoff

Measure Level 5 areas as their own lines in m², because the labour is different. The board quantity doesn’t change; the finishing does. Your painter will want the same split.

A note on editions

Some manufacturer pages still cite the 2007 edition of AS/NZS 2589. The current edition is 2017; buy it from Standards Australia if you need the detail.

Sources

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