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Gyprock Fyrchek MR combines a fire and acoustic grade board with additional moisture resistance to create the ideal lining for fire rated wall and ceiling systems in wet areas.

Product Overview

Fyrchek MR’s glass fibre-reinforced core enables it to maintain structural integrity when subjected to direct flame. The additional moisture resistant properties make it an ideal board for use as part of a fire rated wall or ceiling system in wet areas or application subjected to high humidity.

This plasterboard is also an acoustic grade board and can be used in systems where acoustic separation is specified.

Gyprock Fyrchek MR can be easily identified by its blue coloured face paper.

Typical Applications

Fyrchek MR  is predominantly specified for commercial installations in areas where there is a higher level of fire and moisture resistance.

It is primarily intended for walls and ceilings in wet area rooms, soffits and external eaves that must achieve fire resistance.

More information about fire and wet area solutions can be found under the Solutions tab.

Available Edge Profiles

Gyprock Fyrchek MR is available with a recessed edge (RE) profile

Edge Profile
Gyprock Fyrchek MR is available with a recessed edge (RE) profile – both long edges of the board feature a recess that tapers approximately 60mm in from the edge. This is the standard choice of profile for flush jointed systems.
Gyprock Fyrchek MR
Australian Made and Owned logo in black and white

Australian Made and Owned

Licensed by Australian Made Campaign Ltd
wet area icon with droplet

Moisture Resistant

Suitable for wet areas

fire rated icon with flame

Fire Resistant

Can be used as part of a fire-rated system

acoustic performance icon with sound

Acoustic Properties

Helps combat sound transmission

Tested Fire Performance

Gyprock fire rated plasterboard products are manufactured with special additives to enhance their fire resistance properties. The additives slow the progress of heat and flame, and when used as part of a CSR fire rated system, provide performance options suitable for many construction types.

CSR provides a range of wall and ceiling systems, junction and penetration details, which meet and exceed the requirements of the Building Code of Australia. These solutions often include a combination of plasterboard, insulation, sealants and accessories to reach various performance criteria.



Fire Resistant

Technical Specifications

Product Options

Gyprock Fyrchek MR is available in the following sizes:

Thickness 13mm
Widths 1200mm
Lengths 2700mm
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 Fyrchek MR 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 and 16mm ± 0.5mm
Nominal Widths 1200mm  ± 3mm
Nominal Lengths From 2700 to 3600 ± 5mm, typically in 300mm increments
Squareness Cut ends ± 3mm in the width of the board

Physical Properties

13mm 16mm
Nominal Board Weight* 10.8kg/m2 12.9kg/m2
Thermal Resistance 0.05 - 0.07 m2K/W 0.07 – 0.09 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
9.3% 8.4%

* 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 and Owned

Australian Made and Owned

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

GECA Accredited

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