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fire rated boundary wall
Download the Install Guide
/ Zerobound – Fire‑Rated Boundary Wall
(Up to FRL 90/90/90)
Zerobound is engineered for zero‑lot boundary conditions and achieves ratings up to FRL 90/90/90. Its lightweight, low‑component design simplifies compliant boundary wall construction on tight or constrained sites, without specialist installers.
/ Key Benefits
Zerobound is ideal for builders and developers looking to save time and money.
  • Up to FRL 90/90/90
  • fire‑rated boundary wall
  • Optimised for zero‑lot applications
  • Lightweight, low‑component assembly
  • No expensive fire rated batts
  • Straightforward installation with standard trades
  • Clear detailing and documentation
Zerobound CodeMark Certified
CodeMark Certification
/  FRL 60/60/60
    • / Applications

    Zerobound suits boundary‑condition projects such as:

    • Zero‑lot line walls for townhouses and duplexes
    • Urban infill and multi‑residential developments
    • Narrow sites with constrained access
    • Medium‑density projects requiring boundary FRL
    / Performance & Compliance
    Zerobound® provides a compliant pathway for zero‑lot boundary walls and is rated up to FRL 90/90/90 when installed according to the system specification and installation guide. The design reduces unnecessary components compared with many traditional boundary wall approaches while maintaining compliance.
    / Handling & Installation Overview
    • Lightweight, low‑component assembly improves handling
    • Installed by standard trades using typical tools
    • Clean detailing supports efficient site sequencing
    • Documentation provides a clear boundary‑wall pathway
    • Weather resistant and superior strength
    minimal components
    The Zerobound system has removed multiple components, saving on downtime with missing or damaged components. Additionally, Zerobound has removed the need for expensive third party components, such as metal channels or fire batts, saving time and money.
    CBMA has also simplified the ordering process by supplying all required standard accessories based on the number of panels or boards required. This saves your site team time and calculations of materials. No more waiting weeks for third party estimations and quotes!

    simple installation
    Installation of boundary walls has become easier with Zerobound. Zerobound does not require expensive installation equipment, such as Fibre cement blades or lifting devices. Zerobound can be cut with a standard circular saw blade and is light enough to lift without equipment, saving on costs. Zerobound also does not require a specialist installer, this can save time and costs on waiting for installers or high installation rates. In most cases you can utilise your own on site trades such as your site carpenter.
    easy quoting
    CBMA understands that over time, systems have got more complicated. CBMA believes that this does not need to be the case. With many systems on the market, you normally have to know the system components and the calculations to quote and order, or you have to wait for the supplier to return a full quote which can take weeks. Zerobound has been designed and is supplied with the standard accessories included in the price. This saves the customer valuable time and deadlines being able to quote, estimate and order in house. All we require is the M2 (or panels) you require with your preferred wastage factor, CBMA will supply the accessories to suit. This also means there are no changes to the m2 costs making quoting and estimating more consistent, minimising margin loses. Zerobound has been designed and is supplied with the standard accessories included in the price. This saves the customer valuable time and deadlines being able to quote, estimate and order in house. All you require is the M2 (or panels) you require with your preferred wastage factor, CBMA will supply the accessories to suit. This also means there are no changes to the m2 costs making quoting and estimating more consistent, minimising margin loses.
    Install Guide

    Technical Data

    CBMA Zerobound is the ideal product for any zero allotment or fire rated boundary wall requirements. Designed to provide a simple and effective fire rated solution, Zerobound can save costs and time on site.  

    Zerobound has been designed for many applications including: 

    Townhouse | Apartments | Cladding | Boundary walls

    Properties
    Specification
    Manufacturing Tolerance
    Standard
    Dimensions –  Overall
    Coverage    		 2730mm x 630mm x 14mm / 22mm
    2700mm x 600mm x 14mm / 22mm    		 Width / Length: +/- 1.5mm AS2908.2
    Profile Shiplap – all edges
    Characteristics Pink in colour
    Panel Layout Horizontal and/or Vertical
    Weight (Approx) 17.3kg/m2 (14mm) 26.5kg/m2 (22mm) 
    Modulus of rupture (Wet) >9MPa AS2908.2

    Zerobound has been tested and certified by independent industry professionals including NATA accredited laboratories. Zerobound has been accredited with CodeMark certification.

    Properties
    Result
    Standard
    Fire Rating Level FRL 60/60/60 (14mm) FRL 90/90/90 (22mm) AS1530.4
    Combustibility Pass as non-combustible AS1530.1
    Weatherproofing Pass AS4040.2
    Wind Classifications N1, N2, N3 AS4055
    Thermal Rt(summer) 2.2m2K/W and Rt(winter)2.3K/W AS/NZS4859.1
    Acoustic Rw = 43dB (per wall – 10mm -5.7kg/m2 plasterboard + R2.5 insulation – 14mm panel) AS2908.2

    More Downloads

    Install Guide
    Installation Checklist
    Zerbound Overview
    CodeMark Certification
    Zerobound TDS
    /  more products

    / FAQ

    Where is Zerobound commonly used?

    Zero‑lot boundary walls in multi‑residential and infill developments.

    Does it require specialist installers?

    No. Standard trades can install Zerobound following the installation guide.

    How does it differ from masonry boundary walls?

    Zerobound provides compliant fire performance in a lighter assembly with fewer components, simplifying installation on constrained sites.

    What FRL can Zerobound achieve?

    When installed according to the specification, Zerobound can be rated to FRL 60/60/60 or FRL 90/90/90.