Rombus

A modular pavement system engineered for heavy-use surfaces in demanding environments

Rombus combines a 100% Australian recycled plastic grid with a reduced-depth concrete infill to create a high-strength flexible pavement system. Designed as an alternative to full-depth slabs, it reduces excavation, concrete volume, steel reinforcement and installation time while delivering durable surface performance for hardstands, pavements, access roads and industrial areas. Tested load performance exceeds 10,000 tonnes per square metre.

Compare the Rombus Systems by Design, Strength and Finish

Understand the Difference Between Grid V1 & Fusion V2

Rombus Grid V1 or Fusion V2?

Compare the key differences in grid pattern, concrete depth, sheet coverage, joining method and installation requirements to help identify the best fit for your project.

Rombus Grid V1

Rombus Grid V1

$38.00
View Details
Grid Design
Diamond-pattern grid
Panel Size
1000 × 1000 × 40mm
Sheet Coverage
1m² gross area per sheet
Concrete Required
Approx. 3.8m³ per 100m²
Joining Method
Modular panel layout requiring joins / expansion joints during installation
Rombus Fusion V2

Rombus Fusion V2

$42.00
View Details
Grid Design
Hexagon-pattern grid
Panel Size
1166 × 1166 × 48mm
Sheet Coverage
1.36m² gross area per sheet
Concrete Required
Approx. 4.6m³ per 100m²
Joining Method
Overlapping join system designed to create a continuous connected surface

See how Rombus compares before you commit. Enter your project measurements to generate an instant estimate, compare concrete requirements and review potential savings against a traditional slab.

Calculate Your Rombus Estimate

Industrial Slab Performance, Reimagined

From Grid to Industrial Grade Surface

At the Manawatu Cold Storage facility in Feilding, NZ, Rombus was installed as a faster, lower-concrete alternative to traditional slab construction.

Rombus is capable of delivering high-performance slab systems for large-scale industrial facilities. Watch the pour process to see how the grid is filled, finished and transformed into a durable industrial surface.

Watch the Project Pour
Concrete is poured into interlocking grid system, it absorbs movement and distributes pressure, to reduce cracking.

ROMBUS FUSION V2 EMPTY GRID

48mm Hexagonal Grid Profile
Each Fusion V2 sheet measures 1166mm × 1166mm × 48mm, with a gross sheet area of 1.36m² and approximately 6kg weight per grid with 48mm concrete fill depth.

FINISHED SURFACE

Smoother Connected Finish
Fusion V2 uses an upgraded hexagonal cell structure with overlapping joins to create a more continuous surface finish. The system is designed to improve load distribution and reduce system-wide stress across high-traffic and fatigue-prone areas.

COMPLETED PROJECT

Designed to Streamline Installation
Fusion V2 is designed to cover more ground per sheet, eliminate the need for expansion joints and reduce installation complexity. It requires approximately 4.6m³ of concrete per 100m², helping deliver a durable pavement surface with less concrete than traditional full-depth slabs.

Image: Hardstand located in WA

ROMBUS V1 EMPTY GRID

40mm Diamond Grid Profile
Each Grid V1 sheet measures 1000mm × 1000mm × 40mm, with 1m² gross area, approximately 5.35kg weight per grid and 40mm concrete fill depth.

FINISHED SURFACE

Diamond Pattern Surface
Rombus Grid V1 creates a structured diamond-pattern finish once filled with concrete, providing a strong, lower-concrete alternative to traditional full-depth slabs.

COMPLETED PROJECT

Tested Load Bearing Performance
Grid V1 is installed using a three-stage process: ground preparation, grid installation and concrete infill using the approved 32MPa mix design.

The system has been tested to withstand loads exceeding 10,000 tonnes per square metre.

Image: Runway Widening

Visit our Resource section for all Spec Sheets, Installation Guides & Calculator Tools or Contact us for further information or visit the Resources tab for all Spec Sheets, Installation Guides & Calculator Tools

Contact the Sales Team
Estimate your Rombus project in minutes. Enter your project area below to calculate product quantities, concrete use and compare potential savings.

Calculate your Rombus estimate

Enter your work area, select a Rombus product, and we’ll calculate approximate costings to supply Rombus product, excluding delivery, concrete and labour.

Step 1 – Input your work area

Length × Width gives the best accuracy. Total area only will give an approximate sheet layout.

Step 2 – Choose Rombus product

V1 includes edging as standard. V2 requires no edging.

Rombus vs Traditional Slab – Quick Comparison

Enter your work area and we’ll estimate a Rombus solution beside a 100–350 mm slab using industry average allowances.

Step 1 – Input your work area (either L × W or total area in m²)

Step 2 – Choose Rombus V1 or V2

Step 3 – Select traditional slab depth

Estimate first. Freight quote next.

How the Rombus Quote & Freight Process Works

Start here: Rombus Cost Calculator

Enter your project details, click Calculate to generate an instant product estimate & comparison.

Your estimate will show approximate product quantities, concrete required & product cost for both Rombus Grid V1 & Rombus Fusion V2.

Once you have reviewed your estimate, complete the Freight Delivery Quote form below the calculator with your delivery details.

Once received, our team will calculate the freight cost & contact you to confirm delivery pricing before your order is finalised.

Up to 60% Cost Savings

By reducing concrete volume, excavation, formwork and labour requirements, Rombus can deliver significant savings compared with traditional concrete pavement construction.

Faster Installation & Less Downtime

Reduced excavation, steel mesh, heavy formwork & lengthy concrete pours. Large scale sites are benefiting from reduced downtime & completed surfaces in less time.

Heavy-Duty Load Performance

Designed to support demanding industrial loads up to 10,000T per m². Creating a durable, dust & gravel-free surface for machinery, traffic & hardstand areas.

Rombus FAQ's

Have questions about Rombus range? Browse our FAQs below, or contact us for advice specific to your project.

Have further questions about your project?

Contact our team

Contact us at the details below, or submit a form enquiry and we'll get back to you.

Address
Mooloolaba, QLD 4557
Ballarat, VIC, 3350

Phone
0419 333 799

Email
sales@unitedag.com.au