CBMA
Smarter Building Solutions
CBMA is an established national supplier of trusted fire-rated systems. Big River is a trusted supplier of Firezone, Zerobound and Eboard range of products. CBMA gives builders, resellers, and project teams confidence from specification through to installation.
Explore the Range

Firezone® Partywall System
Firezone party wall system is the simple and cost effective party wall system.

Zerobound® Zero Allotment Fire Rated Wall
Zerobound is a minimal footprint lightweight fire rated boundry wall system.

Eboard® Lightweight Fire Rated Wall
Eboard® is a lightweight fire wall system, designed to assist in timber structures where space is a premium.
About CBMA
CBMA is a national company and leader in trusted fire-rated building systems, supporting builders, developers, installers, and project teams across Australia with compliant, practical, and reliable construction solutions.
For over seven years, CBMA has worked to bring greater confidence and clarity to fire-rated construction. With a growing portfolio of recognised brands across fire-rated walls, floors, cladding, and specialist systems, including Firezone®, Zerobound® and Floorplex®, CBMA helps support modern construction where compliance, documentation, supply reliability, and installation performance matter.
Backed by practical industry experience, technical knowledge, and a strong understanding of Australian construction requirements, CBMA continues to invest in products and systems that support safer, clearer, and more efficient building outcomes.
CBMA products are used across a wide range of residential, commercial, and multi-residential projects, including projects delivered by leading builders and developers throughout Australia. This trust has been built through consistent supply, responsive service, recognised product brands, and a long-term commitment to tested fire-rated systems.
Guided by a commitment to quality, reliability, and practical project support, CBMA continues to help raise the standard of fire-rated construction across Australia.
Engineered for Performance
Compliance Confidence
CBMA fire-rated systems are supported by testing, documentation, and practical system guidance, helping builders and project teams specify and install with greater confidence.
National Supply & Support
As a national company, CBMA supports builders, developers and installers across Australia with reliable product knowledge and responsive technical support.
Trusted Fire-Rated Brands
With recognised brands including Firezone®, Zerobound® and Floorplex®, CBMA provides practical fire-rated solutions designed for real-world construction requirements.
Recent Projects

Materials palette channels Mediterranean design
Materials palette channels Mediterranean design into everyday living at boutique Gold Coast community. Big River Group supplied key...

The Rose Fitzroy
With roots deeply entrenched in the local community, iconic pub The Rose, in Fitzroy, Victoria recently underwent a...

Taronga Zoo Installation
Big River’s timber helps build an oasis in the heart of Sydney The design brief for this ‘forever...
CBMA Documentation
Visit Your Local Big River Location
Find specialist building products and expert advice at your nearest Big River Location.