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© 2026 GFK Homes — Granny Flat Kits AU. Backed by LINKUP AI PropTech Group.
RESTRICTED B2B TRADE PORTAL — WHOLESALE CLEARANCE ASSET ONLY
Trade InventoryUnit CX20

20ft Expandable Cabin Shell

Ready for Immediate DispatchDDP LandedCompare in B2B ROI plannerCompare in acreage plannerCompare in worker housing plannerCompare in mining camps plannerCompare in property developers plannerCompare in vineyard wedding planner
20ft Expandable Cabin Shell
REF: CX20 - EXTERNAL
Floor Plan
2 BED LAYOUT
Structure
BASE STRUCTURE
EXTERIOR WALKAROUND
INTERIOR CONDITION

Factory Floor — Raw Production Photos

Unedited photos straight from our production facility. No renders, no CGI — what you see is what ships.

Factory floor — production line overview with overhead crane
PRODUCTION LINE
Factory floor — assembled unit with windows installed
ASSEMBLY STAGE
Factory dispatch — wrapped unit being loaded onto transport
DISPATCH & LOADING
FACTORY WALKTHROUGH
75mm Class A rock wool insulation cross-section — non-combustible
Class A Non-Combustible

75mm rock wool sandwich panel cross-section — will not burn.

NOT EPS ✓

Important Compliance Note

This unit is supplied strictly as a factory-direct base chassis. To achieve the $28,500 wholesale clearance rate (a roughly $50k+ reduction from local retail), it is provided with factory manufacturing parameter reports only (SGS/CE equivalent materials data).

It does not include site-specific Australian structural or fire certificates out of the box. B2B Park buyers typically process this unit as a "Moveable Dwelling" or engage a local NSW certifier to sign off using the provided base factory engineering data below.

What's Included

  • • Finished 2-bedroom internal layout
  • • Full bathroom (Shower, toilet, vanity)
  • • Kitchen cabinetry, stone-look bench, sink
  • • SPC waterproof wood-grain flooring
  • • Aluminium double-glazed doors & windows
  • • Pre-wired electrical & pre-plumbed water

What's NOT Included

  • • Site preparation & Footings/Stumps
  • • Council approvals & Local Certifier sign-offs
  • • Crane hire & Local delivery from depot
  • • Furniture, appliances & split-system AC
  • • External decks, stairs or verandahs
  • • Final electrical/plumbing mains connection

Key Dimensions

EXPANDED (L×W×H)
5900 × 6366 × 2480 mm
37 m² floor area · Sleeps 2–4
INTERNAL (L×W×H)
5560 × 6200 × 2300 mm
2.3 m clear ceiling height
FOLDED / SHIPPING
5900 × 2200 × 2480 mm
Fits standard 20ft container slot

Factory Engineering Parameters

CHASSIS & FRAME
Galvanized Q235 Steel
2.5mm—3.0mm thickness, marine-grade anti-rust coating. Wind resistance configurable by tier.
WALL PANELS
75mm Class A Rock Wool Sandwich Panel
Non-combustible Class A fire-rated insulation. External: 16mm metal-clad panel. Internal: 9mm bamboo-fibre board. Interior partition: 50mm rock wool sandwich.
ROOF & CEILING
0.5mm Steel + Glass Wool
840-profile drop-ceiling panel interior finish. Sealed against weather infiltration.
FLOORING
18mm Cement Fibre Board
Topped with 2.0mm PVC wood-grain vinyl floor covering. Fire-rated subfloor, sealed.
DOORS & WINDOWS
8+1 Windows · 4 Doors
8× aluminium windows 930×1000mm. 1× bathroom window 400×700mm. 1× thermal-break entry door 1230×2235mm. 2× interior steel doors 920×2030mm. 1× frosted glass bathroom door 700×2000mm.
BATHROOM
Sector Wet/Dry Separation
Full suite: shower, hand basin, toilet, mirror cabinet, floor drain, complete water supply & drainage plumbing pre-installed.
ELECTRICAL & PLUMBING
12KW Pre-Wired · 20A RCD
Mains 6mm² · Hot water 6mm² · AC circuit 4mm² · GPO 2.5mm² · Lighting 1.5mm². LED ceiling lights, switches & outlets pre-installed. Requires final mains connection by local licensed electrician.
Engineering Teardown

We publish every spec. Most importers won't.

Ask any supplier: tare weight, fire rating, steel gauge. Then compare.

⚙️

3.8-Tonne Chassis

3.8ttare weight

Full-galvanized Q235 steel. Main beams 100×100×2.5mm. Columns 150×150×2.5mm. Crane lifting points 6mm galvanized — zero frame deflection on single-point lift.

Cheap imports: 1.5mm thin-wall, under 2.5t ❌

🔥

Class A Fire Rating

100mmtotal wall

75mm rock wool sandwich (Class A non-combustible) + 9mm bamboo-fibre interior + 16mm metal-clad exterior. Will not burn.

Cheap imports: 50mm flammable EPS foam ❌

⚡

12KW Pre-Wired

6mm²mains cable

20A RCD safety switch. Pre-wired: 6mm² mains, 4mm² AC, 2.5mm² GPO, 1.5mm² lighting. Your sparky just connects to mains.

Cheap imports: single thin cable, no RCD ❌

Full BOM — 20ft Expandable (37m²)

Frame (Q235 Galvanized)

  • Top beam — 100×100×2.5mm
  • Bottom beam — 80×80×2.5mm
  • Columns — 150×150×2.5mm
  • Crane pts — 6mm galvanized
  • Wing frames — 40×80×2mm
  • Fold hinges — 3mm galvanized

Walls & Roof

  • 75mm rock wool sandwich (Class A)
  • 9mm bamboo-fibre interior
  • 16mm metal-clad exterior
  • Roof — 0.5mm steel + glass wool

Floor & Finish

  • 18mm fire-rated cement board
  • 2mm PVC wood-grain vinyl

Doors & Windows

  • 8× aluminium windows (930×1000mm)
  • 1× thermal-break entry door
  • 2× interior steel doors
  • 1× frosted glass bath door

Electrical (12KW)

  • 20A RCD + LED ceiling lights
  • 6mm² mains / 4mm² AC / 2.5mm² GPO

Every number above comes from our factory BOM. We publish them because most importers can't.

Factory Documents

Factory Structure & Assembly Diagrams.pdfUnlocked
Basic engineering draughting • See gallery preview
View
Material Spec & Quality Control Reports.pdfAwaiting Release
Standard ISO/SGS base tests • Pending dispatch authorization

* Full technical documents are released to the client's nominated local engineer upon deposit clearance.

Clearance Price
$28,500AUD
  • 20ft Expandable Cabin Shell
  • Landed rate (Ex. local delivery & crane)
  • No structural certificates included
Lock Unit - $1,000 DepositWhatsApp +86 18128830057

Deposit secures the container slot.
First to pay locks the inventory.