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Gyprock Aquachek 13mm is a moisture resistant wall and ceiling plasterboard designed as the perfect lining for wet areas in commercial applications.

Product Overview

The core, face and back of Gyprock Aquachek 13mm are treated to make it resistant to moisture and humidity without compromising integrity. It is specifically designed for use as a wall and ceiling lining in wet areas of commercial buildings. It can be easily identified by its blue coloured face paper.

Gyprock Aquachek 13mm is manufactured to meet or exceed the requirements of water resistant grade gypsum plasterboard as per AS/NZ 2588 Gypsum Plasterboard, and satisfies the requirements of the Building Code of Australia for wet area wall linings in commercial buildings when installed according to Gyprock installation guides. Refer to Australian Standard AS3740 - Waterproofing of Wet Areas in Residential Buildings for additional requirements. Installation information for wet area solutions can be found in the Red Book 3: Commercial Installation Guide.

Typical Applications

In commercial projects Gyprock Aquachek 13mm is typically used in showers/change rooms, restrooms, laundries and kitchens, hospital ward bathrooms and soffits.

Because Aquachek 13mm is not subject to moisture movement and has extremely low water absorption characteristics, it provides an excellent, stable substrate for ceramic tiles.

Gyprock Aquachek 13mm product image.
Australian Made logo in black and white

Australian Made

Licensed by Australian Made Campaign Ltd
wet area icon with droplet

Moisture Resistant

Suitable for wet areas

versatile icon with line shape


Suitable for walls and ceilings

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25 Year Warranty

Specify and install with confidence

Tested Moisture Performance

Gyprock wet area plasterboard products are manufactured with special additives to enhance the moisture resistance of their core. The additives also permeates the face and back paper of the board, delivering superior performance in wet area and high humidity applications.

Water resistance

Water resistance is tested by submerging a sample of plasterboard in a body of water for two hours.

Surface water resistance

Surface water resistance testing sees the plasterboard sample weighed pre-and-post surface exposure to water.


Moisture Resistance

Technical Specifications

Product Options

Gyprock Aquachek 13mm is available in the following sizes:

Thickness 13mm
Widths 1200mm
Lengths 2400mm
Edge Profiles Recessed Edge for regular jointing

Stockholdings of specific sizes may vary in different regions. Click HERE for a list of stocked sizes in your state

For the latest product availability in your area and to place an order, contact your nearest supplier. Product Manufacture

Gyprock Aquachek is manufactured by CSR Gyprock in Australia to stringent product specifications.

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 13mm ± 0.5mm
Nominal Widths 1200 and 1350mm ± 3mm
Nominal Lengths From 2400 to 6000mm ± 5mm, typically in 300mm increments
Squareness Cut ends ± 3mm in the width of the board

Physical Properties

Nominal Board Weight* 9.8kg/m2
Thermal Resistance 0.06 m2K/W
Fire Hazard Properties∆ Group No = 1
SMOGRARC <100 m2/s2
Combustibility◊ Plasterboard may be used wherever a non-combustible material is required.
Total Recycled Content

*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


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

Commercial Installation Guide

Design considerations and installation instructions.

Australian Made

Australian Made

Licensed by Australian Made Campaign Limited to use the Australian Made Logo.

GECA Accredited

Verified by an independent conformity assessment body to meet the environmental, health and social/ethical criteria of the GECA Panel Boards standard.

Manufactured For Life red logo with the shape of Australia in the centre.

Manufactured for Life

Gyprock plasterboard products are manufactured for life with all CSR products designed to achieve optimal performance when part of a CSR integrated system.