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MODFLOORPLUS
Modular Chassis System

A light gauge steel chassis system engineered to improve speed, reduce labour and enable scalable modular construction.

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Modular Construction Breaks Down at the System Level

Most modular construction challenges are not caused by demand — they are caused by how systems are designed and delivered.

Common constraints include:

Labour-intensive chassis construction

Inconsistent assembly processes

Poor integration between structure and services

Designs that do not translate efficiently into manufacturing

These issues compound as projects scale, limiting production capacity and increasing delivery risk.

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Integrated Service Coordination

Pre-punched service pathways allow plumbing, electrical and mechanical systems to be installed efficiently without rework or modification.

Optimised for Transport and Handling

Light gauge steel construction minimises chassis deflection and reduces weight while maintaining structural performance, improving logistics and site efficiency.

What MODFLOORPLUS Does Differently

MODFLOORPLUS is designed to remove the inefficiencies of traditional chassis construction and replace them with a structured, production-ready system.

Engineered, Not Fabricated On the Floor

Each chassis is designed to suit the build and produced to exact specifications — eliminating guesswork, rework and on-site variation.

Fast, Repeatable Assembly

Components arrive pre-configured and ready to assemble, significantly reducing installation time and improving consistency across builds.

Reduced Labour Dependency

Completely eliminates the need for skilled cutting, measuring and welding during assembly, lowering labour risk and improving scalability.

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How the System Is Delivered

  1. Project is reviewed and engineered

  2. Components are produced to exact lengths

  3. Profiles are manufactured via rollforming

  4. Chassis is assembled with reduced manual input

  5. Integrated into modular production

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MODFLOORPLUS Applications

MODFLOORPLUS is used across a range of modular construction environments:

Residential modular housing

Transportable buildings

Commercial modular developments

Offsite manufacturing facilities

The system is adaptable to different scales and project types.

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The Manufacturing Platform Behind the System

MODFLOORPLUS is not just a design solution — it is enabled by a dedicated manufacturing platform.

The SFT300 rollforming system is purpose-built to produce the structural components required for the chassis.

Unlike conventional rollformers, it:

Produces large structural profiles (150mm–350mm)

Automates profile changes within minutes

Integrates punching, forming and cutting in one system

This enables manufacturers to move from fragmented fabrication to controlled, scalable production.

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What This Means for Production

By combining MODFLOORPLUS with the SFT300 platform, manufacturers can:

Reduce reliance on manual fabrication

Improve production speed and consistency

Consolidate multiple processes into one system

Deliver modular builds with greater predictability

This is where the system moves from design concept to manufacturing capability.

Supported by the MMC Modular Ecosystem

MODFLOORPLUS is not a standalone product. It’s supported by:

Steelfast Systems

Machinery designed to produce MODFLOORPLUS components at scale

Your Workshop

BIM, detailing and documentation to ensure designs translate into manufacturing outputs

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If Your Chassis System Is Limiting Your Output, It’s Limiting Your Growth

MODFLOORPLUS provides a structured system designed to remove those constraints and support scalable chassis construction

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