James Hardie™ Gravis™ Panel
AAC Wall & Floor Panels
What is Hardie™ Gravis™ Panel?
Hardie™ Gravis™ Panel is James Hardie’s steel-reinforced autoclaved aerated concrete (AAC) panel system for residential and multi-residential construction. Available as 50mm and 75mm wall panels and a 75mm tongue-and-groove flooring panel, Hardie™ Gravis™ can be used for external walls, zero lot walls, intertenancy walls and suspended flooring.
In short: Hardie™ Gravis™ is James Hardie’s AAC panel range.
Need Hardie™ Gravis™ Panels?
Features & Benefits
Hardie™ Gravis™ Panel features & benefits
Non-combustible
Fire resistant and BAL compliant.
Thermal efficient
Excellent insulation for energy efficient builds
Acoustic control
Reduces noise between rooms and levels
Render ready
Smooth surface for leading render and coating systems
Fast installation
Lightweight panels for efficient on-site installation
Mixed material
Seamlessly integrates with James Hardie cladding
Applications
Where can Hardie™ Gravis™ Panels be used?
Hardie™ Gravis™ Panel is suitable for a wide range of residential and multi-residential projects, including:

External cladding and facades

Zero lot and boundary walls

Intertenancy and party walls

Townhouses and duplexes

Feature architectural walls

Suspended floors
Why choose Dahlsens for your Hardie™ Gravis™ supply?
Fully stocked
AAC Warehouses
Competitive
trade prices
Trusted
national supplier
Expertise in AAC
and cladding
Deliveries that
go the extra mile

AAC & cladding expertise
Get practical support choosing the right Hardie Gravis panel, AAC system components and complementary cladding for your project.
Complete AAC system supply
Source Hardie Gravis wall and floor panels, adhesives, top hats, fixings, patch compounds, sealers and installation accessories from one supplier.
Competitive trade quotes
Send us your plans for a free take-off or your material list for a competitive trade Hardie Gravis price tailored to your project scope and quantities.
Technical support
Our trained team can assist with product selection and technical information, and help connect you with James Hardie support where required.
Deliveries planned around your build
Coordinate Hardie Gravis deliveries with your Dahlsens team to help keep your build stages and trades moving.
More than just AAC
Dahlsens can also supply timber, truss and frame, flooring, fibre cement cladding, insulation, doors, fixings and other building materials across your project.

SIZES
Why choose Dahlsens for your Hardie™ Gravis™ supply?
Hardie™ Gravis™ Panel Wall
| Thickness | Width | Available lengths |
|---|---|---|
| 50mm | 600mm | 2200, 2400, 2550, 2700, 2850, 3000mm |
| 75mm | 600mm | 2200, 2400, 2550, 2700, 2850, 3000, 3300mm |
Hardie™ Gravis™ Panel Floor
| Thickness | Width | Available lengths |
|---|---|---|
| 75mm | 600mm | 1800mm |
Technical Specifications
Hardie™ Gravis™ Panel technical specifications
Material: Steel-reinforced Autoclaved Aerated Concrete (AAC)
Applications: External walls, zero lot walls, intertenancy walls and flooring systems
Thicknesses: 50mm and 75mm wall panels
Flooring: 75mm tongue-and-groove flooring panel
Surface finish: Smooth render-ready face
Fire performance: Non-combustible
Thermal performance: Excellent insulation properties
Acoustic performance: Strong sound reduction characteristics
Certification: CodeMark certified systems available
Compatibility: Integrates with James Hardie fibre cement cladding systems

Accessories
Complete your Hardie™ Gravis™ AAC System

Hardie™ Gravis™ panels

AAC adhesive

Top hats

Mortar

Patch compounds

Sealants
CodeMark
Hardie™ Gravis™ CodeMark certificates

Install Guides
Hardie™ Gravis™ installation guides

External & Zero Lot Walls Installation Guide

Intertenancy Walls Installation Guide

Flooring Installation Guide

Hardie™ Gravis™ installation guides
Need help selecting the right AAC solution? The Dahlsens AAC team can assist with product selection, technical advice, take-offs and installation guidance.
RENDERS
Compatible render & coating systems
Hardie™ Gravis™ Panel provides a smooth, uniform substrate suitable for a range of leading render and coating systems, allowing builders and designers to achieve modern architectural finishes and textures.
Compatible render systems include:

Dulux Acratex®

Rockcote

Sto Australia
Compare AAC Panel Systems available at Dahlsens

Helix AAC
A lightweight external wall system trusted by leading builders across Australia, available in 50mm and 75mm panel options.

Hardie™ Gravis™
Hardie™ Gravis™ Panel delivers the proven performance of AAC, backed by the quality, technical expertise and trusted name of James Hardie.

Hebel
One of Australia’s most recognised AAC brands, offering systems for external walls, intertenancy walls, flooring and fire-rated applications.
Complete your system with adhesives, top hats, fixings, patch compounds, sealers and installation accessories.

Looking for an AAC solution?
Talk to the Dahlsens AAC specialists for product recommendations, pricing, take-offs and delivery support.
Where to Buy
Where can I get Hardie™ Gravis™ Panels?
Looking for a Hardie™ Gravis™ supplier for your next project? Dahlsens supplies Hardie™ Gravis™ AAC panels and system components to builders and trades, backed by specialist product support. Whether you’re building a single home, townhouse development or multi-residential project, our team can help with product selection, quantities, take-offs, technical information and delivery.
James Hardie Gravis Melbourne
Dahlsens supplies James Hardie Gravis panels to builders across Melbourne and surrounding areas, with access to AAC product support and delivery for residential and multi-residential projects.
James Hardie Gravis Sydney
Builders looking for James Hardie Gravis panels in Sydney can contact Dahlsens for product availability, trade pricing, take-offs and delivery support across Sydney and surrounding areas.
James Hardie Gravis Canberra
Dahlsens supplies James Hardie Gravis AAC panels to builders in Canberra and surrounding areas, with specialist support for wall, intertenancy and flooring applications.
FAQ
Yes. Hardie™ Gravis™ Panel is James Hardie’s steel-reinforced AAC panel range for wall and flooring applications.
An AAC panel is a lightweight building panel made from autoclaved aerated concrete (AAC). The aerated concrete structure creates a strong yet lightweight panel with thermal, acoustic and fire-performance benefits. AAC panels are commonly used in residential and multi-residential construction for external walls, boundary and zero lot walls, intertenancy walls and flooring.
Hardie™ Gravis™ Panel is James Hardie’s steel-reinforced AAC panel system, available for wall and flooring applications.
An AAC wall is a wall system constructed using autoclaved aerated concrete panels or blocks. AAC wall systems can be used for external walls, facades, boundary and zero lot walls, and intertenancy walls. Their lightweight construction, thermal and acoustic properties and non-combustible material make AAC a popular option for residential and multi-residential projects.
James Hardie Gravis AAC panels can be used in approved external, zero lot and intertenancy wall systems. Your current Gravis page identifies these as key applications.
AAC panels are used to construct walls, facades and floors in residential and multi-residential buildings. Common applications include external walls, rendered facades, boundary and zero lot walls, intertenancy walls, townhouses, duplexes and suspended flooring.
James Hardie Gravis™ Panel is a steel-reinforced autoclaved aerated concrete (AAC) building panel. It is designed for residential and multi-residential applications including external walls, boundary and zero lot walls, intertenancy walls and flooring systems. The panels provide a lightweight, render-ready solution with thermal, acoustic and fire-performance benefits.
Yes. Hardie Gravis™ Panel is James Hardie’s autoclaved aerated concrete (AAC) panel system. AAC is a lightweight masonry building material commonly used for external walls, intertenancy walls and flooring.
James Hardie Gravis panels can be used for external walls and facades, boundary and zero lot walls, intertenancy walls and suspended flooring applications. The appropriate Gravis system and panel should be selected for the specific application.
Hardie Gravis Panel Wall is available in 50mm and 75mm thicknesses and a width of 600mm. The 50mm panels are available in lengths from 2200mm to 3000mm, while 75mm panels are available in lengths from 2200mm to 3300mm.
Hardie Gravis Panel Floor is a 75mm thick, 600mm wide and 1800mm long tongue-and-groove AAC flooring panel.
Yes. Hardie Gravis Panel is a non-combustible AAC building product. Always refer to the relevant James Hardie technical documentation and system requirements when designing for specific fire or bushfire requirements.
Yes. Hardie Gravis Panel provides a smooth, render-ready substrate suitable for approved coating and finishing systems. Compatible systems include options from coating manufacturers such as Dulux Acratex and Rockcote. Always check the latest James Hardie and coating manufacturer’s specifications for the selected system.
Yes. Hardie Gravis Panel is designed to integrate with James Hardie’s fibre cement exterior products, making it suitable for contemporary mixed-material facades combining rendered AAC with fibre cement cladding.
Hardie Gravis Panel Wall is available in both 50mm and 75mm thicknesses. The correct panel and system depends on the wall application, design and project requirements. Refer to the relevant James Hardie installation guide or speak with an AAC specialist before specifying the system.
Yes. James Hardie offers Hardie Gravis systems for intertenancy wall applications in residential and multi-residential construction. Installation must follow the relevant James Hardie system specification and installation guide.
Yes. Hardie Gravis Panel Floor is a 75mm tongue-and-groove AAC panel designed for applications including first floors, suspended ground floors, decks and balconies. It provides a solid, concrete-like feel together with thermal and acoustic benefits.
Dahlsens supplies James Hardie Gravis AAC panels to builders and trades across Melbourne and surrounding areas. Contact Dahlsens for current product availability, trade pricing, take-offs, technical support and delivery options.
Dahlsens supplies James Hardie Gravis panels for building projects across Sydney and surrounding areas. Builders can contact Dahlsens for availability, pricing, technical assistance and delivery options.
Dahlsens supplies James Hardie Gravis AAC panels for projects in Canberra and surrounding areas. Contact the Dahlsens team for product availability, quotes, technical information and delivery options.
James Hardie Gravis pricing will depend on the panel type, size, quantity and project requirements. Builders and trades can request a project quote from Dahlsens for current pricing and product availability.
The latest Hardie Gravis installation guides and technical documentation should be accessed through James Hardie’s current technical resources. Dahlsens can also help builders identify the appropriate product and installation information for their application.
Contact the Dahlsens AAC team with your project requirements to discuss take-off assistance, product selection, quantities, pricing and delivery for Hardie Gravis projects.
