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Achieve impressive acoustic control with Gyptone Slotted Minigrid. Combining a modern geometric pattern with a 13% open area, Gyptone Slotted Minigrid provides impressive levels of sound attenuation to match its good looks.

Product Overview

Manufactured by worldwide plasterboard specialist, Saint-Gobain, Gyptone is purpose built to provide exceptional acoustic control with contemporary design. A flexible option provides even greater levels of design freedom.

High levels of acoustic absorption are achieved through a combination of perforation patterns and a highly effective black acoustic fabric backing which also prevents dust from the ceiling entering the room and masks the ceiling framework.

Gyptone Slotted Minigrid features eight large square groupings per sheet, each with 16 mini grids of six 6mm x 80mm slot perforations. This contemporary design provides 13% open area

Gyptone is also manufactured with Activ’Air technology which has an enduring impact on indoor air quality.  All four edges of Gyptone perforated plasterboards are recessed to make flush jointing quicker and easier without the need for butt joints between full panels. The availability of seamless access panels, ensures easy access to the ceiling cavity while maintaining pattern continuity.

Typical Applications

Gyptone perforated plasterboard is typically used as a high performance plasterboard for ceilings in commercial constructions where a high level of acoustic performance is required. This includes applications such as theatres, restaurants, shopping centres and hotel foyers. Whilst perforated plasterboard in predominantly installed in ceilings, it is suitable for use in walls.

Gyptone joints are finished with a three coat jointing system and sanded smooth prior to decoration.


Access Panels

Gyptone Access Panels are integrated into suspended ceilings to allow for inspection, service and maintenance work on the installations in the space above. Gyprock offers an access panel solution for each pattern profile in the Gyptone range that provides easy access and integrates seamlessly into the ceiling.

Gyptone Access Panels
Gyptone Slotted Minigrid
acoustic performance icon with sound


Absorbs sound into the ceiling to prevent reverberation

environmentally responsible icon with leaves

Healthy Environment

Activ'Air for enduring, cleaner air

aesthetics icon with typo a


Acoustic performance with design freedom

Gyptone Flexible - curved, perforated plasterboard for superior acoustic performance and design freedom

Gyptone Flexible Slotted Minigrid is available to suit curved applications.

  • Dry curve to a 2.2 metre radius
  • Black acoustic fabric backing
  • Activ'Air technology for improved indoor air quality

Technical Specifications

NRC Value Summary

Perforated Pattern Open Area % Acoustic Fabric Plenum (Air Cavity)
65mm 200mm 600mm
Empty Batts** Empty Batts** Empty Batts**
Slotted Minigrid 13% Black 0.45 0.60 0.60 0.60 0.55 0.60

Bold values in all tables are test report data. Non-bold values are acoustic predictions by PKA Acoustic Consulting. Values are for ceilings only. For wall values please contact DesignLINK. **Batts denotes that 50mm Bradford glasswool batts (14kg/m3) were included in the cavity.

Product Options

Gyptone Slotted Minigrid is available in the following sizes:

Thickness 6.5mm Flexible
12.5mm Standard
Widths 1200mm
Lengths 2400mm
Edge Profiles Recessed Edge for regular jointing

Stockholdings of specific sizes may vary in different regions. For the latest product availability in your area and to place an order, contact your nearest supplier.

Product Manufacture

Gyptone Slotted Minigrid is manufactured for CSR Gyprock by worldwide plasterboard specialist Saint-Gobain.

Product Handling

Transportation and manual handling: Refer to the Gypsum Board Manufacturers of Australia (GBMA) website for recommended OH&S practices.

Storage: Protect plasterboard and cornice from weather and moisture. Avoid products sagging by storing horizontally, supported on a level platform or full-width support members spaced at max. 600mm centres.

Health and Safety

Safety Data Sheets are important documents in the construction industry and assist in the continuing focus on occupational health and safety on and off sites.

Manufacturing Tolerances

Nominal Thickness 6.5mm and 12.5mm  ± 0.3mm
Nominal Widths 1200mm ± 3mm
Nominal Lengths 2400mm ± 3mm
Squareness 90° ± 1.5mm at 1200mm (short end)

Physical Properties

Nominal Board Weight* 8kg/mStandard
6.5kg/m2 Flexible
Fire Hazard Properties∆ Group No = 1 
SMOGRARC <100 m2/s2
Combustibility◊ Plasterboard may be used wherever a non-combustible material is required.

* Subject to reasonable manufacturing variance
∆ In accordance with AS ISO 9705 and AS 5637.1 
◊ In accordance with NCC2022 Vol 1 Clause C2D10(6)(a) and NCC2019 Amdt1 Vol Clause C1.9(e)(i).

Installation Instructions

Installing to Standards

AS/NZS2589: Gypsum linings – Application and Finishing outlines the procedures for the installation and finishing of Gyprock Perforated Plasterboard in conjunction with additional details contained in Gyprock Technical Literature.


Gyprock makes available resources that provide comprehensive selection, design, installation and maintenance guidance. 

Commercial Installation Guide

Design considerations and installation instructions.

International Alliance Warranty

Through the International Alliance program, Gyprock seeks to develop exclusive relationships with leading manufacturers throughout the world to deliver the best technologies and products to the Australian construction industry.