Modern custom LGS light gauge steel kit home — contemporary Australian design

GFK Homes — Global LGS Manufacturing

Premium Granny Flat Kits
& Custom LGS Steel Frames

Looking for Granny Flat Kits? Build better with LGS steel frames. We engineer your plans into AS4600 compliant lock-up stage kits. Perfect for owner-builders and developers to save thousands on traditional builder margins.

Get a Custom LGS Quote How It Works

For owner-builders & developers

Your plans + our factory = lock-up stage kit delivered worldwide

We convert your approved drawings into precision-engineered steel frame granny flat kits. Flat-pack shipped, ready for local assembly.

Request a Custom Quote View LGS process

~$600

USD / sqm

Lock-up stage kit, factory-gate pricing

1-2

Week Assembly

On-site erection by your local crew

Flat-Pack

Container Shipping

Standard 40ft containers, worldwide delivery

100%

Custom Design

Your plans, your specs — we engineer the kit

Steel Frame Kit Homes

Your Plans, Our Engineering — Lock-up Stage Kits

Send your approved plans and we engineer a complete steel frame flat-pack kit. Steel studs, trusses, wall panels and doors/windows — precision CNC-cut and shipped ready for you or your local builder.

Available in 20ft • 30ft • 40ft

The Flagship Gable Series

Our most sought-after portable asset. Features a stunning pitched roof, premium exterior cladding, and residential-grade finishes.

20ft

20ft Edition

37m² expanded

From $22,900

AUD landed

1–2 bed
Kitchen & bath
CDC-ready (NSW)

30ft

30ft Edition

55m² expanded

From $28,500

AUD landed

2–3 bed
Full kitchen & bath
Most popular

40ft

40ft Edition

74m² expanded

From $35,900

AUD landed

3–4 bed
Full kitchen & 2 bath
Max space

Configure & Price Your Kit →View All 33 Models

Beyond the Standard

Factory Direct Bespoke Builds

Need a full-glass panoramic facade, a pitch roof, or premium composite cladding? Explore our Custom Designs & Gallery for inspiration.

Get Inspired & View Gallery

NEW Product Line

Motorized Louvered
Pergola

No council permit required. Freestanding under 18㎡ with motorized louvers, hidden drainage, and integrated LED. The ultimate backyard upgrade.

🛡️ No Permit⚙️ A-OK Motor💡 LED Lighting💧 Hidden Drainage

From $4,990

AUD landed

View Product →

Premium motorized louvered pergola in a luxurious poolside outdoor setting

Engineering Teardown

Engineered to support AS4600 structural standards

Every LGS kit is precision-manufactured using CNC roll-forming technology. We publish our specs because transparency builds trust with professional builders.

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LGS Steel Framing

AS4600-Grade Light Gauge Steel

G550steel grade

G550 high-tensile galvanized steel studs and tracks. CNC roll-formed to sub-millimetre tolerances. Pre-punched service holes for electrical and plumbing. Engineered to support AS4600 and NASH structural standards.

Traditional timber: slower, weather-dependent, higher labour cost ❌

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External Wall System

Complete Cladding & Insulation

R2.5+wall insulation

Factory-fitted external cladding options including fibre cement, rendered finish, and composite panels. Insulation batts pre-installed between steel studs. Complete weatherproof envelope ready for your local builder to finish internally.

Stick-built: weather delays, inconsistent quality, rework costs ❌

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Doors & Windows

Thermally-Broken Aluminium

Doubleglazed standard

Double-glazed thermally-broken aluminium windows and doors included in every kit. Pre-sized to your plans, delivered ready-to-install. Meets energy efficiency requirements for most climate zones.

Site-measure: delays, re-orders, installation rework ❌

Full LGS Lock-up Kit Specification — Typical 150m² Home

Steel Framing System (G550 LGS)

Wall studs — 89×32×0.75mm C-section
Top & bottom tracks — 91×32×0.75mm
Roof trusses — CNC roll-formed to plan
Floor joists — 200×45×1.0mm (if applicable)
All connections — self-drilling screws
Pre-punched service holes for M&E

External Envelope

Cladding — fibre cement / rendered / composite
Insulation — R2.5+ glass wool batts
Sarking — reflective building wrap
Roof — Colorbond steel sheeting

Doors & Windows

Thermally-broken aluminium frames
Double-glazed IGU units
Sized to your approved plans
Hardware & seals included

Documentation

Engineering drawings (stamped)
Assembly manual with step-by-step
Connection details & fixing schedule

Not Included (Supply-Only)

Slab / foundations (by local builder)
Plumbing & electrical (by local trades)
Internal linings & finishes

Every specification above is from our standard LGS kit scope. We publish them because professional builders deserve full transparency before committing to a supply partner.

Live Factory Footage

Direct from our
manufacturing hub.

Your approved plans become a precision-engineered LGS kit. We ship the complete lock-up stage package straight from our factory floor to your site worldwide. Zero middleman markup.

~$600

USD/sqm ex-factory

~1 wk

On-site assembly

Custom design fee

We ship worldwide

🇦🇺Australia (All States)🇳🇿New Zealand🇺🇸USA🇦🇪UAE

Can we ship to your location? Get a shipping quote →

Get Factory-Direct Quote

Expandable granny flat exterior at sunset in Australian bush setting

Modern fitted kitchen inside expandable granny flat

Designer bathroom with rain shower inside expandable granny flat

Expandable granny flat with gable roof and verandah

Why GFK Homes LGS

Engineered precision. Delivered flat-pack.

Traditional builds cost $3,000–4,500 AUD/sqm and take 6–12 months. Our LGS flat-pack kits deliver the lock-up stage at a fraction of the cost — your local crew assembles on-site in approximately one week.

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60–70% lower cost vs local build

Lock-up stage kits from ~$600 USD/sqm versus $3,000–4,500 AUD/sqm for traditional local construction. Same quality outcome, factory-controlled precision.

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Flat-pack container shipping

All components flat-packed into standard 40ft shipping containers. No oversized loads, no special permits. Delivered to any port worldwide with standard freight rates.

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100% custom to your plans

No fixed models or catalogues. Send your approved drawings and we engineer the complete LGS framing package. Any floor plan, any size, any style.

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Precision CNC manufacturing

Every steel member is CNC roll-formed to sub-millimetre tolerances. Pre-punched, pre-labelled, and packed with assembly drawings. Minimal on-site cutting required.

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Engineered for certification

All kits are engineered to support AS4600 structural certification. We provide engineering documentation to assist your local certifier with approval pathways.

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