20ft Expandable Container House with Three-Sided Glass Walls and a Glazed Front Elevation

A 20ft expandable container house glazed on three faces: the whole front elevation plus both side walls, held in a black aluminium system within a black steel frame. It folds to 2200 mm wide for shipping, opens to a 38.2 m² floor, and arrives with a partition, internal doors and a bathroom pod fitted.

Three glass faces is a decision, not a finish choice. It buys daylight and view on every side, and it costs you the two solid walls you would otherwise have used for storage, a bed head or a kitchen run. This page is written for buyers who have already decided they want the view and now need to know what the glass actually does — thermally, structurally, and in terms of what you can put against it.

• Is this a fully glazed container house? Three of the four faces are glazed: front elevation and both side walls. The rear wall is solid insulated panel and carries the services.
• How large is it opened? 5900 x 6480 x 2480 mm — a 38.2 m² floor.
• How large is it folded? 5900 x 2200 x 2480 mm.
• How many per container? Two 20ft units per 40HQ.
• What is the glazing? Aluminium-framed units in a black system; tempered glass as standard, sealed double-glazed units available. Exact build-up is set on the project drawing.
• Will it overheat? Not if the glass and the shading are specified for the orientation. Unspecified clear glass on a west face will overheat — that is true of any glass building, not just this one.
• Does it need a crane? No crane. A forklift or telehandler lands it and two people unfold it.
• What comes fitted? Partition, two internal doors, bathroom pod, wiring, lights, floor.
• What is not included? Furniture, blinds or external shading, deck, foundation, taps and appliances.
• Who makes it? Global Container (Suzhou) Co., Ltd., Suzhou, Jiangsu, China — own plant, no subcontracting, factory inspection welcome.

In a standard expandable unit the front wall is glazed and the other three are panel. Here the front and both sides are glazed, which means the module's lateral walls stop being structure-carrying surfaces and become openings. The frame takes the load instead: the black corner posts, the head and the sill run continuously around each face, and the glazing sits inside that ring rather than replacing it.

Practically, that produces three consequences a buyer should plan around before ordering:

• Storage goes to the rear. The solid rear wall is the only place for a tall wardrobe, a kitchen run or a wall-hung unit. The layout drawing has to start from that wall and work outward.
• The partition has to be positioned for privacy, not for symmetry. With glass on three sides, a bathroom or bedroom partition on the glass line needs an opaque backing — otherwise you are depending on the blinds of the room behind it.
• East-west orientation matters more than the specification sheet. A long glazed face pointed at the low afternoon sun will need external shading regardless of how good the glass is. That is an architectural decision made before the unit ships, not a fitting added afterwards.

Front elevation: full-height glazing either side of the double doors, black aluminium system in a black steel frame.

Glass is the weakest part of any building envelope thermally — that is physics, not a defect of this product. A wall panel is insulated to 75 mm; a glass unit is not. The moment you glaze three faces, the glazing becomes the dominant heat path in both directions: heat in during summer afternoons, heat out on winter nights.

There are four levers, and they should be pulled in this order:

1. Orientation and shading first. A roof overhang, a pergola, a roller blind or a deciduous tree costs less than upgraded glass and works better. Shade the glass before you buy better glass.
2. Glass build-up second. Sealed double-glazed units instead of single glazing; a solar-control or Low-E coating on the face that takes the most sun; laminated glass on the exposed face where security or windborne debris matters.
3. Ventilation third. Opening panels or a roof vent let the hot air out at the top. A sealed glass box with no opening is the failure case, and it is a specification omission, not a product limitation.
4. Heating and cooling last. Size the unit for the glazed area, not for the floor area. A 38.2 m² room with three glass faces behaves like a much larger, much leakier room.

We do not publish a single U-value for this unit, because the number changes with the glass build-up, the frame and the climate it is being sold into. Ask for the glass specification on your project drawing and it will be stated there — that is the number to take to a heating engineer.

The layout is a rear service zone and a glazed living zone. The rear wall carries the bathroom pod and a store; the partition separates them from the main room; two internal doors give access without walking through the wet room. The floor is laid throughout, walls are light grey panel with a black shadow line at floor and ceiling, and lighting is fitted and wired.

Because the glazed faces are uninterrupted except by the door, furniture placement follows the view rather than the walls. That suits a lounge, a studio or a dining space; it does not suit a room that needs a wall of bookcases.

Interior: glazed walls on three sides, partition and internal doors to the rear service zone.

The wet room is built and tested in the plant: shower tray with glass screen, thermostatic mixer with rain head and hand shower, close-coupled WC, vanity basin, instantaneous water heater and extractor. Walls are marble-look panel with black framing, matching the exterior language.

Note the small openable window in the shower enclosure — a wet room with no opening is a condensation problem waiting to be discovered on the first cold morning, so the pod is specified with ventilation rather than relying on a fan alone.

Bathroom pod: glazed shower enclosure, rain head, vanity, water heater, openable window.

• Lakeside and coastal plots — the case this unit was drawn for: view on three sides, deck on the water side
• Vineyard, orchard and farm stays — a room that puts guests inside the landscape rather than beside it
• Glamping and hospitality pods — premium pitch product where the view is what is being sold
• Showroom, sales suite or studio — glazed on three sides reads as transparent and open to passers-by
• Pool house or garden pavilion — a room that is used in daylight and does not need solid walls

Where it does not work: a plot overlooked on all three sides, a room that needs long solid walls for storage, or a site where the client will not build shading. In those cases the standard expandable unit with one glazed face is the better answer, and we will say so.

Buyers researching this product arrive with three different words, and the paperwork differs by which one they use.

The glazing is the visible part and the easiest to argue about; the permission is the expensive part and it follows the use, not the frame. Tell us what the room is for and we will tell you which of the three conversations you are actually having.

Folded, the module is 5900 x 2200 x 2480 mm and two fit in a 40HQ. The glazed faces ship protected with the factory film left on the frames and glass, which is removed at commissioning — the film in the photographs is transit protection, not a finish.

On site the sequence is: base level and load points set, unit landed by forklift or telehandler, roof raised, side walls pushed out and locked, services connected, film removed, seals and trims checked. Two people, a few hours, no crane. Foundation, deck and any external shading are local work and are normally cheaper sourced locally.

Frame: Q235 hot-dip galvanised steel, 2.5-3.0 mm, with 6 mm liner plates at the corner castings. Glazing: aluminium-framed system in black; tempered glass as standard, sealed double-glazed units and solar-control coatings available, build-up confirmed on the project drawing. Solid walls: 75 mm EPS sandwich panel, rock wool optional. Roof: 0.35 mm corrugated colour steel over 50 mm EPS with a 200-type ceiling panel. Floor: 18 mm fireproof magnesite board with 2.0 mm PVC, upgradeable to 4.0 mm SPC.

Production runs in our own plant in Suzhou — frame, glazing and fit-out on the same lines for the first unit and the four-hundredth. We do not subcontract, which is the only reason a specification stays true across a large order. Buyers are welcome to inspect during production or to appoint a third-party inspector before shipment; glass build-up, frame thickness and panel density are all checkable on the floor.