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WS modular homes

WS Family Living

A two-storey family home from two stacked modules – about 108 m² with living, kitchen and dining below and two bedrooms, bathroom and balcony above.

Australia / NZUnited StatesEurope

Request a quotation Specifications

  • ≈ 108 m² · 2 modules, stacked
  • Living, dining, kitchen, 2 bedrooms, 2 bathroom cores, balcony
  • Galvanised Q355 steel frame
  • Factory-built bathroom pod and MEP rough-in
  • Up to ≈ 91 % completed in the factory
  • Base, Fire-rated (FRL 60/60/60 target) or custom

The home

Two WS modules stacked into a compact two-storey home. The ground floor holds dining, kitchen and living with glazed doors to the garden; upstairs, two bedrooms share a bathroom core and open onto a full-width balcony. The stair and services are aligned in the factory so the modules connect on site in hours.

WS Family Living floor plan
WS Family Living – ground floor and upper floor.

What is built in the factory

  • Steel frame – galvanised Q355 frame engineered for strength, precision and durability, with corner posts for lifting and stacking.
  • Wet core – factory-built bathroom pod for quality and consistency.
  • MEP rough-in – services pre-installed for fast connection on site.
  • External envelope – high-performance thermal and weather protection.
  • Interior fit-out – finishes designed for comfort and function.
  • Dispatch ready – inspected, wrapped and ready for safe transport.

Every WS model shares the same module system – frame, floor, walls, roof, wet core and services – so specifications, approvals and spare parts stay consistent across a project.

Variants

Choose WS-ML-01 Base for standard residential or accommodation use, WS-ML-02 Fire-rated where enhanced fire performance is required, or a project-custom build-up – see the variant table on the module system page.

Standards and requirements by market

Codes World Steel designs, fabricates and documents this product to – and the key geometric and load requirements in each market.

Australia / NZ

  • NCC 2022 Vol. 1 & 2Building Code of Australia – Class 1a / 2 / 3 as applicable
  • AS/NZS 1170Structural design actions incl. wind regions
  • AS 4100 · AS/NZS 4600Steel and cold-formed steel structures
  • AS 1530.4Fire-resistance tests – FRL
  • AS 3740Waterproofing of domestic wet areas
  • AS/NZS 3000 · AS/NZS 3500Electrical installations · plumbing and drainage
Fire-rated variant
FRL 60/60/60 target with tested or assessed systems
Approval
Building certifier per state; transport permits per route
All Australia & New Zealand standards →

United States

  • IBC / IRCInternational Building / Residential Code
  • ICC/MBI 1200 & 1205Off-site construction: planning, inspection, regulatory compliance
  • ASCE 7 · AISC 360Loads and steel design
  • NEC · IPCElectrical and plumbing codes
Approval
State modular / industrialised building program where applicable
All United States standards →

Europe

  • EN 1990 – EN 1993Eurocodes – basis, actions, steel
  • EN 13501-2Fire resistance classification (REI)
  • EN 1090-2 WSC certifiedExecution of steel structures – WS EXC3
Approval
National building rules and energy performance per country
All Europe standards →

Summary for orientation only – the project specification, the adopted code edition and the authority having jurisdiction govern.

Finishes

FinishStandards / notes
ExteriorInsulated wall panel with charcoal frame trim; cladding options to suit
DeckTimber or composite deck to project
InteriorLining and paint, vinyl plank flooring, cabinetry and joinery
Project finishesColours, fixtures and fittings on request

Frequently asked questions

How long does production take?

Typically 4–6 weeks of factory production per batch after design approval, while foundations and site works proceed in parallel.

How much is finished in the factory?

Up to about 91 % of the work – frame, envelope, wet core, services and finishes. On site the modules are set on footings and connected to services.

Can the layout or finishes be changed?

Yes – finishes, fixtures, window positions and the build-up can be tailored as a project-custom variant.

How are the two storeys connected?

The upper module is bolted to the lower one at the corner posts; stair, services and weather seals are prepared in the factory.

Next project

Planning a steel structure abroad?

Send us your drawings or IFC model – our estimating team replies with fabrication scope, schedule and delivered price.