Dual Wing Expandable Container House Steel Structure Prefab Home

Specifications for 30-foot expandable containers

The 30 FT double-wing expandable container house opens from a 2.2 m transport profile into 55.4 m² of finished living space — two bedrooms, a full bathroom and a real kitchen inside a 9.0 × 6.3 m envelope. Galvanized steel frame, 75 mm insulated panels, factory-installed wiring and plumbing. One unit ships in a 40HQ container and is habitable within a day of arrival.

Built to Outlast the Climate It Ships To.

Most buyers never see the steel they paid for. Ours is 5.0 mm Q235 channel on the main beams, 4.0 mm folded columns, and hinges thick enough to still swing true in year ten — hot-dip galvanized and powder-coated to 80 μm before assembly, not after. We over-specify the frame because it is the one part of the house you can never upgrade later.

One Connection Away from Occupancy.

Every wall, circuit and water line is installed, tested and signed off before the unit is wrapped. What arrives on site is a house that needs one power feed and one water connection — not a crew, a generator and three weeks of labour. On a 40-unit camp.

Approved in Weeks, Not Months.

Most projects stall in planning, not on site. At 55 m², this unit sits under the secondary-dwelling thresholds used in several Australian states and stays inside the 600 sq ft ADU limits common across California, Washington and Oregon — so a project that needs a development application with a 74 m² unit can often proceed on a faster complying-development route. We supply the structural calculations, panel fire reports and a specification sheet formatted for submission. Check your local rules with your certifier; we will give you the documentation that makes that conversation short.

Drawn Around Your Project, Not Our Catalogue.

Partitions, bedroom count, kitchen run, window positions, door swing and socket standard are all re-cut at the drawing stage — no design fee, no change to the structural set. One customer wants two bedrooms and a walk-in robe; the next wants a six-person bunk room with a drying room. Same 9 × 6.3 m envelope, different house. Send a hand sketch and we will return a dimensioned plan within three working days

Ships in One Container. Costs Like One Container

A 30 FT unit folds to 2,200 mm — standard dry container, no flat-rack, no open-top, no out-of-gauge surcharge. One unit per 40HQ, with roughly 2.8 m of length left over for decking, air conditioners or solar kit. On ocean freight, that is the difference between a landed cost you can quote to a client and one you have to apologise for.

One Unit to Start. A Hundred to Deliver.

First orders are usually a single unit, bought to inspect. The tenth order is usually forty, due on one berth, in one season. Our line runs the same structural set and the same jigs whether you are buying one house or a hundred, which is why unit forty measures the same as unit one — and why we can hold a 20–30 day lead time instead of quoting "subject to capacity".

Engineered for the Weather You Actually Have.

An insulated sandwich panel is not a climate answer on its own. Core density, panel thickness, thermal bridging at the folding joints and the glazing specification all decide whether the unit holds heat through a Baltic winter or stays cool under a Queensland sun. Tell us the lowest and highest temperatures on site and we will specify the core, the thickness and the glazing to match — instead of shipping the same 75 mm EPS panel to every country.

Workshop Production Flow

Factory Introduction

We are a professional manufacturer specializing in prefabricated container houses, expandable container houses, foldable container houses and mobile prefab bathrooms. We design, produce and export modular housing solutions for hotels, villas, offices, dormitories, warehouses, workshops and construction sites. Our factory covers an area of 50,000 square meters and is located in Guangzhou. Visitors are welcome.