Prefab house FAQ for overseas buyers.

A standard 20ft expandable unit is approximately 2.5 tons. Final weight depends on wall panel thickness, bathroom configuration, roof options and customized materials.

Yes. Some configurations can provide approximately 2.4m interior height, with the center corridor reaching around 2.5-2.6m depending on the model and shipping solution.

For mini 20ft layouts, the center space is usually too narrow for a standard built-in bathroom. A compact bathroom module or a different layout should be reviewed before quotation.

Yes, a laundry area can be planned between bedrooms in some 40ft layouts. Local drainage details, such as floor drains, should be confirmed with the installer before production.

Oversized dimensions need engineering review. Paint line and container loading limits may restrict extra-long structures, while higher units may require open-top container shipping.

Steel doors are standard. Windows can be configured with aluminum alloy or thermal-break aluminum options. Frame colors, including black, can be discussed during specification.

Plastic-steel windows are normally single-glazed in this product line. If double glazing is required, aluminum alloy options are usually more suitable.

Exterior metal carved panels and color steel panels can be selected from available color cards. RAL color matching may be possible depending on material and order quantity.

Common configurations include 75mm exterior wall panels and 50mm interior partition panels. 100mm or thicker insulation panels can be reviewed for colder climates or higher performance requirements.

Yes. UV panels or waterproof marble-look panels can create a similar visual effect while keeping the structure lighter and easier to ship than real stone.

Common options include marble-look, PVC, fan-shaped and acrylic bathroom configurations. The right choice depends on budget, available space and installation requirements.

Bathroom dimensions vary by model. For some expandable house layouts, the bathroom width is around 1.26-1.43m, while shower and fixture sizes should be confirmed with the final drawing.

Kitchen and bathroom water connections can be reserved at the factory. Typical pipe references include a 20mm water inlet, 50mm wastewater pipe and 110mm sewage pipe.

The sink area can be waterproofed before delivery. Bathroom floor tiles can be added as an option, with final cost depending on specification and quantity.

Some bathroom dimensions are constrained by fixtures and wall structure. Narrower layouts should be reviewed with drawings so the shower, toilet and basin remain usable.

Typical wiring references include 6 sq mm main incoming wire, 4 sq mm socket wiring and 1.5 sq mm wiring for lights and switches. Final standards can be adjusted for the destination market.

The whole-house circuit can be designed for around 8000W in some configurations, with separate wiring for high-power appliances such as water heaters when required.

Yes, electrical configuration should be confirmed before production. US systems are usually 110V AC, while many European and other markets use 220-240V AC.

Graphene floor heating can be added as an option. Power consumption depends on local climate, target indoor temperature and heated area, so it should be designed for the project location.

Sealing typically uses rubber sealing strips, waterproof structural adhesive and waterproof tape. Roof seams can also use waterproof tape and protective cover plates.

The roof uses layered waterproofing, including waterproof tape and cover panels. For high-rainfall areas, an additional pitched roof or drainage gutter system can be considered.

For coastal or salt-air locations, buyers should review raised placement, galvanized frame treatments, bottom-structure protection and insulation protection.

Cold-climate configurations can be reviewed. Thicker insulation, such as 100mm polyurethane panels, may be required depending on local temperature and heating plan.

Projects with strict insulation requirements may need thicker PU or alternative sandwich panels. For example, 100mm wall panels or reinforced roof insulation can be reviewed case by case.

Standard production is usually around 20-25 days after specifications are confirmed. Batch orders, such as 10 or more units, may require around 30 days depending on model mix and customization.

A small 10ft expandable unit can typically fit four sets in one 40ft container. Some mini 20ft configurations may fit six sets in a 40ft high-cube container.

A 30ft expandable unit with Australian-standard electrical configuration and one bathroom is typically planned as one set per high-cube container.

A one-year warranty is commonly provided for the house product. Exact coverage should be confirmed in the contract according to model, included parts and destination.

Yes. More panels and thicker materials reduce available internal packing space. For a 40ft unit, remaining packing space should be checked against the final accessory list.

Yes. A customized aluminum logo plate can be produced and fixed to the house, or other branding solutions can be discussed for distributor orders.

Yes. Flat roof and pitched roof options can be reviewed. A pitched roof is often recommended when buyers want stronger rain protection or a more residential appearance.

Wheels can be considered for certain use cases, but the corner structure may need to be adapted to shipping container-style corner fittings and site movement requirements.

Interior door dimensions and colors can be customized in many cases. Common bedroom door dimensions can be adjusted, such as 920mm or 760mm width, depending on layout.

It is possible, but using one flooring material across the house usually keeps the floor more even and reduces height transitions between spaces.