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Flat-packed container house panels stacked on site before assembly
Comparison Guide · 6 min read

Detachable vs Expandable Container House

Both ship flat and both open out on site, but they answer different problems. This is how to tell which one your project actually needs.

Buyers usually arrive asking for a price on a container house, and the first useful question back is which kind. Detachable and expandable units look similar in a catalogue and behave very differently on a project.

What a Detachable Container House Is

A detachable unit is a steel frame with wall, floor and roof panels that bolt on rather than weld in. For the sea leg the panels come off and stack flat inside the frames, which is why several units fit one 40HQ container. On site the panels go back to their marked positions.

Because the panels are removable, the unit can be combined sideways with its neighbours on a common grid and stacked up to three storeys with external steel staircases. That is what makes it the unit most camps are built from.

What an Expandable Container House Is

An expandable unit ships as a compact stack and unfolds into a finished living space. The walls, windows, wiring and fittings are already installed, so site work is lifting, unfolding, levelling and connecting services.

It trades flexibility for speed. It does not combine or stack the way a detachable unit does, but it is habitable very quickly and standard units ship in 20 to 30 days.

Side by Side

DetachableExpandable
FreightSeveral units per 40HQSeveral units per 40HQ
Site labourPanels refitted to marked positionsUnfold, level, connect
Combinable into larger roomsYes, on a common gridLimited
StackingUp to 3 storeysSingle storey
Lead timeQuoted per project volume20 to 30 days for standard units
Best forCamps and multi-building compoundsSmall, fast deployments
Extendable laterYes, boltedLimited
Container units stacked two high on a prepared site
Stacking is where detachable units earn their place — expandable units stay single storey.

How to Choose

If you are building a camp — dormitories, a canteen, offices and ablutions on one grid — the detachable unit is almost always right. One module family means one bill of materials, one erection sequence and the ability to stack when the pad is tight.

If you need a handful of habitable units quickly — a site office, a supervisor's house, a show unit for a distributor, or first-phase accommodation while the main camp is in fabrication — the expandable unit gets people under a roof sooner.

  • Building a camp of any size: detachable
  • Need beds in weeks, not a compound: expandable
  • Pad is smaller than the headcount: detachable, stacked two or three storeys
  • Testing a market with a single sample: expandable
  • Compound will be extended mid-project: detachable

What They Share

Both are engineered to AS/NZS, EN (CE) and the wind and seismic loads you specify. Both are fitted out and function tested in Weifang before shipping. Both leave with a photo report issued before the container is sealed, and both have no fixed minimum order on standard units.

Buyer questions

Quick Answers

Which is cheaper to ship?

Both knock down so several homes fit one 40HQ container. Across a large camp the detachable unit usually wins on delivered cost per bed, because rooms are combined from a common module.

Can expandable units be stacked?

Expandable units are supplied as single storey. Where you need two or three storeys, the detachable unit with external steel staircases is the right product.

Which has the shorter lead time?

Standard expandable container homes ship in 20 to 30 days. Detachable camp volumes are quoted per project.

Can I mix both on one site?

Yes, and it is common — expandable units for immediate first-phase accommodation while the detachable camp is in fabrication.

Still Deciding

Describe your project and an engineer will tell you which option fits — with drawings and a price.