Container House Installation

How to Import Container Houses from China: From Inquiry to On-Site Installation Importing container houses from China runs in seven steps: define the use case and unit type, confirm drawings and configuration, agree commercial terms, follow production and quality checks, approve the packing and container-loading plan, ship and clear customs, then install on site. Most delays and cost overruns happen at steps two and five — unclear specifications and an unplanned loading plan — not at sea. This guide covers the parts a manufacturer controls and can document. Customs classification, duty rates and local building approvals vary by destination and change frequently; for those, your freight forwarder and local certifier are the authority. Step 1: Define the Use Case and the Unit Type The phrase “container house” covers three different products with very different logistics. Choose before you ask for a quote, otherwise you will compare prices for different things. Type Best for Logistics character Quick-assembly flat-pack Camp offices, dormitories, welfare rooms, multi-unit blocks Ships as loose parts; highest loading density; assembled on site Folding container Projects that relocate often; rapid deployment Ships pre-assembled and folded; unfolds on site Double-wing expandable Fewer, larger self-contained living units Ships folded; unfolds to full width; lowest loading density Ask the factory for the dimension drawing of the exact model you are buying, in both transport and in-use states. Do not plan a site layout from a brochure size — confirm it against the drawing before production. Step 2: Confirm Drawings and Configuration A supplier can only quote accurately once the configuration is fixed. Confirm the items that change cost and compliance: Layout: number of rooms, bathroom, kitchen, and whether partitions are fixed Wall panel core and thickness, plus insulation requirements for your climate Door and window type, and the electrical standard of the destination country Floor finish, ceiling, and whether wiring is concealed Frame specification, including galvanizing and corrosion protection Wanbang's flat-pack line uses a high-strength galvanized steel frame with rock-wool sandwich panels that provide thermal insulation, fire resistance and moisture resistance — the specification to request in writing if your site is hot, humid, or remote. Step 3: Agree Commercial Terms Get every term in the contract, not in a chat message. The commercial fields published on Wanbang product pages are a useful reference for what to expect in writing: minimum order quantity of one unit, payment structured as 50% deposit and 50% before shipment, shipment from Nansha port (other Chinese ports available), and a published lead time of 10–15 days. Confirm the actual figures for your order and model in the contract — lead time depends on configuration and quantity. Step 4: Follow Production and Quality Checks Ask for evidence at three points: mid-production photos, pre-packing inspection, and container-loading photos. Wanbang documents inspection at each production stage and reports a 100% finished-product pass rate. If your project value or local compliance risk is significant, appoint an independent inspector before the balance payment. Step 5: Approve the Packing and Container-Loading Plan The loading plan decides your freight cost per unit. Ask how many units fit in a 40HQ, how much is pre-assembled in the factory versus assembled on site, and what goes into each container. Packing method Approx. units per 40HQ Trade-off Loose parts (knock-down) ≈ 14 sets Lowest freight per unit; more site assembly Pre-assembled packing ≈ 10 sets Less site work; higher freight per unit Pre-assembled, stacked ≈ 6 sets Least site work; highest freight per unit Figures above are Wanbang's published loading data for the flat-pack product line and vary by wall panel thickness and model — treat them as a planning baseline and confirm against your final specification. Step 6: Ship and Clear Customs Sea freight is standard for container houses; your forwarder selects between FCL and other options based on unit dimensions. Prepare the usual export set — commercial invoice, packing list, bill of lading and certificate of origin — and confirm document requirements with your forwarder. On customs, duties and local approvals: HS classification, duty rates, and building-approval or certification requirements differ by country and change often. Confirm them with your licensed customs broker, freight forwarder or local certifier before shipment. A manufacturer can supply product documentation and test data, but should not be your source for duty rates or local code compliance. Step 7: Install on Site Installation planning starts before the ship leaves: prepare the foundation, confirm crane access if required, and agree who provides the local crew. Support scope varies by product: Quick-assembly flat-pack: no welding and no crane needed — about 4 workers complete one unit in around 3 hours. Folding container: unfolds in 4 steps in roughly 15 minutes. Double-wing expandable: arrives folded and unfolds into the full-width layout on site. Ask the factory what comes in the box: drawings, installation manuals, instructional video, and remote guidance during your first units. FAQ How many container houses fit in a 40HQ container? For Wanbang's flat-pack line, published figures are about 14 sets per 40HQ shipped as loose parts, roughly 10 sets pre-assembled, and about 6 sets pre-assembled and stacked. Confirm against your model and wall panel thickness — the packing method is the variable that matters. How long does installation take? A quick-assembly flat-pack unit takes about 4 workers around 3 hours with no welding and no crane. A folding unit unfolds in 4 steps in roughly 15 minutes. Site preparation and foundation work are separate from these figures. Do I need a crane to install? Not for the quick-assembly flat-pack system, which is designed for bolted assembly without welding or crane lift. Folding and expandable units are lifted into position and then unfolded — confirm the requirement for your model before the container arrives. What payment terms are typical? The structure published on Wanbang product pages is 50% deposit with 50% balance before shipment. Always confirm the exact terms, currency and incoterms in the contract. Who handles customs clearance and import duties? Your freight forwarder or licensed customs broker. The factory provides commercial and technical documents; duty rates, HS classification and local approvals must be confirmed locally, as they vary by country and change over time. Planning an import? Contact Wanbang for a specification sheet, packing plan and installation documentation for your project.Contact: Jade · Tel: +86 13312807790 · WhatsApp: +966 50 2737 116 · Email: Jade.li@gdwbhouse.com

Flat-Pack vs Folding Container House: Which Ships More Units and Installs Faster? Short answer: flat-pack container houses ship more units per container — 14 sets in one 40HQ — while folding container houses install far faster, at about 15 minutes per unit versus roughly 3 hours. If your cost driver is freight, flat-pack wins. If your constraint is site labour or speed, folding wins. Most projects choose based on which of those two pressures is heavier. Both types are factory-built steel-framed modular units shipped from China for workforce camps, site offices and remote accommodation. The difference is in how they travel. A flat-pack unit leaves the factory as loose components — panels, columns, beams and floor boards packed flat and stacked — and is assembled on site. A folding unit leaves the factory as a complete box that collapses to a fraction of its height and is unfolded on site. Side-by-side: the numbers that actually decide the order Item Quick-Assembly Flat-Pack Folding Container House Set-up dimensions 6055 × 2990 × 2896 mm 5900 × 2500 × 2470 mm Usable floor area per unit ≈ 18 m² ≈ 14.8 m² Shipping form Loose components, flat-packed Complete unit folded to 5900 × 2500 × 400 mm Volume when packed Flat stacked panels Compressed to about 1/6 of set-up volume Loading per 40HQ 14 sets 10 sets (50 mm wall panel) / 8 sets (75 mm wall panel) Installation About 4 workers, ~3 hours per unit About 4 steps, ~15 minutes per unit Site equipment No welding, no crane required Unfolding sequence, no welding Why the “folding” one ships fewer units This is the part buyers find counter-intuitive. A folding unit compresses to roughly one sixth of its volume — so it should ship better, right? In practice, what you are shipping is still a whole box: floor, roof, wall panels and frame folded together, 400 mm thick once collapsed. A flat-pack unit, by contrast, is broken down into its individual parts, which stack with almost no wasted air between them. The result: 14 flat-pack sets per 40HQ against 10 folding sets (8 sets if you specify the thicker 75 mm wall panels). On a project that needs 40 or 100 units, that difference is several containers of freight, and freight is often the single largest variable cost in a container house order. Where the folding unit wins: time on site Flat-pack assembly is straightforward — bolted connections between columns and top/bottom beams, with wall and floor panels fixed in sequence — but it is still an assembly job: about four workers and three hours per unit. Folding units reverse that. The unit arrives as a finished box, and the site work is a short unfolding sequence measured in minutes. That matters in three situations: Tight mobilisation windows — a camp that must be habitable this week rather than next month. Expensive or scarce site labour — remote mining and power projects where a skilled crew costs far more than a container slot. Repeat relocation — camps that move as the work front moves along a transmission line or haul road. Usable space: flat-pack gives you more per unit Per unit, the flat-pack footprint is larger: roughly 18 m² against roughly 14.8 m² for the folding unit. If you are fitting dorms, a kitchen block or a site office into a fixed number of units, that difference changes how many units you have to buy in the first place — which partly offsets the freight advantage, and is worth doing the arithmetic on before you commit. How to choose in practice Choose flat-pack when Freight cost per unit is your main lever — 14 sets per 40HQ is the best loading figure we can offer. The camp is a fixed, long-term installation. You need the larger per-unit floor area for dorms, offices or kitchen blocks. You want individual components replaceable without scrapping a whole unit. Choose folding when Speed of deployment is the binding constraint. Site labour is expensive, limited, or short-windowed. The camp is expected to be relocated during the project. You prefer a unit that arrives finished and simply opens. Practical tip: send us your headcount, site location and project duration, and we will run both options through the same container-loading calculation. The answer usually becomes obvious once freight and site labour are priced against each other for your specific country. Frequently asked questions Which type is cheaper to ship? Flat-pack, in units per container: 14 sets per 40HQ versus 10 sets (50 mm panels) or 8 sets (75 mm panels) for folding units. On large orders that typically means fewer containers. Which type installs faster? Folding units — roughly 15 minutes per unit through a four-step sequence, compared with about three hours for a four-worker crew assembling a flat-pack unit. Can both types go in the same shipment? Yes. Mixed shipments are common when a project needs fast-deployment units for the first phase and flat-pack units for the permanent camp. Loading plans are calculated per order, because the two types do not stack the same way. Which is better for a long-term fixed camp? Usually flat-pack. It gives more usable area per unit, assembles into a rigid bolted structure, and is designed for a service life measured in years rather than a temporary stopover. Folding units suit shorter or mobile deployments better. Do both types need a crane or welding on site? Flat-pack assembly needs no welding and no crane. Folding units are set down and unfolded. Site requirements still depend on ground conditions and your foundation design, which we confirm per project. If you are comparing the two for an upcoming project, our team can quote both options side by side, including a container-loading plan for your destination port. Request a flat-pack vs folding quotation and loading plan Related reading: What Is a Folding Container House? Folded Size, 40HQ Loading and 15-Minute Installation Explained

Container House Foundations and Site Preparation: What to Prepare Before Delivery Most projects settle the unit type, the layout and the shipping plan first — and the foundation last. Then the containers arrive, and they sit on the truck while someone tries to level a slope. That order is expensive. The foundation decides when installation can start, how much site work you pay for, and whether the camp can be moved later. This guide covers the four base options used on container house projects, how level the ground really needs to be, and what to fix before the first unit comes off the trailer. Why the Foundation Decision Comes First Three things are locked in the moment you choose a base: When installation can start. The crew cannot begin until the base is level and load-bearing. If the base is not ready, the units, the lifting equipment and the crew all wait — and on a remote site, they wait expensively. A real share of total project cost. Ground works are one of the most consistently underestimated lines in a first quotation, especially where there is no existing hardstanding. Whether the camp can move. A concrete slab fixes the layout permanently. Screws, piers and compacted pads can be dismantled and reused when a site moves on. There is also a schedule effect that buyers often miss: the faster the base can be made ready, the faster the units can be installed. Flat-pack units ship at 14 per 40HQ container and a four-person crew installs one in about three hours — but only once the base underneath it is ready. The Four Base Options Almost every container house project uses one of these four. Which one is right depends on the soil, the slope, the schedule and whether the camp is permanent. Base option Works best on Setup Can move later Watch out for Ground screws / helical piles Firm, stable soil; camps that may relocate Fast — no curing time Yes — unscrew and reuse Not suitable on rock or very soft fill Concrete piers / strip footings Sloping sites; where the floor must sit above grade Moderate — needs curing Difficult All piers must be set to one common level Concrete slab Flat, well-drained sites; permanent installations Slowest — excavation plus curing No Drainage must be planned before pouring Compacted gravel pad Dry, level sites; temporary or low-load use Fastest to prepare Yes Needs edge retention and reliable drainage The correct base for a specific site is an engineering decision, not a catalogue choice. Soil bearing capacity, frost depth, wind exposure and local building rules all matter. Have a local engineer confirm the design before anything is poured or drilled. How Level Does the Ground Need to Be? Level means level across the whole footprint — not just at the four corners. Container house units are assembled from rigid panels. A base that is high in the middle, or twisted diagonally, puts uneven load into the panels and the frame. Doors and windows stop closing cleanly, gaps open up, and the structure works harder than it was designed to. Three practical points save time on site: Check with a long level or a laser, end to end. A short level reading taken in one corner tells you nothing about the whole base. Use adjustable supports at the jack points. Small differences can then be corrected after the unit is set down, instead of sending the lifting equipment away and bringing it back. Finish the base before the units ship, not after. Correcting it later means lifting the unit a second time. Site Access: What the Truck and the Crane Need Access is checked far less often than it should be, and it stops more installations than the foundation does. Walk the route the delivery trailer will take. Bridge limits, overhead cables, gate widths and the turning radius at the last corner are the four things that most often catch a project out. Plan the offload point close to the base. Every extra movement is extra handling cost and extra risk of panel damage. Keep the opening side clear. Folding and expandable units need working space on the side that opens out, not just a footprint. Confirm what the crane or forklift will stand on. Lifting equipment on soft ground is a bigger problem than lifting equipment with limited room. Ground Conditions That Change the Plan Sloping ground A slope does not rule out a container house, but it changes the base. Piers or a stepped footing system bring the floor up to one common level, and the difference in height is absorbed below the unit rather than inside it. Cut-and-fill is also possible, but the fill must be properly compacted before anything is placed on it. Soft or expansive clay Expansive soils move with moisture, and that movement is what damages light structures. Options include deeper screws or piles that reach stable ground, or removal and replacement of the upper layer. On these sites, drainage design matters as much as the base itself. Rock Screws and piles generally cannot be driven into rock. In practice the base is created above it — a levelling pad, or anchors drilled and grouted into the rock, designed by a local engineer for the actual conditions. Flood-prone sites and high water tables Raising the floor above the expected flood level is usually the simplest defence, which points towards piers or a raised pad rather than a slab at grade. Sites like this also need surface drainage that carries water away from the units, not under them. Prepare These Before the Units Arrive Base level, compacted and confirmed by survey Access route verified for the delivery trailer and the lifting equipment Footprint cleared, plus working space on the opening side Drainage planned around the base, not through it Power, water and waste connection points agreed with the site team Installation crew and lifting equipment booked for the same window as the delivery Remote Camps Have Different Priorities On a workforce camp or mining site, the base is usually not the finished article — it is a working surface that has to survive weather, traffic and possibly relocation. Schedule beats finish. Options without curing time keep a camp programme intact when the units are already on site. Drainage matters more than appearance. Water that pools under a unit causes corrosion and makes access unpleasant all year round. Plan for relocation. Camps that follow a project need bases that can be taken apart — screws and pads rather than slabs. Assume the ground is not level. Adjustable supports take up the differences that a survey may not have captured. Common Mistakes Starting the base after the units ship. Both clocks are running, and only one of them can be shortened. Improvising with blocks on arrival. Timber and loose blocks compress and move; the unit ends up out of level again within weeks. Ignoring drainage because the site is dry. Sites are dry until the wet season arrives. Assuming the site is flat. A slope that looks minor from a photo can be a metre of difference across a footprint. Designing the base without local building rules. Permits and inspections are set locally, and they are easier to satisfy before construction than after. Frequently Asked Questions Do container houses need a foundation? They do not need a traditional foundation wall, but they do need a level, load-bearing and drained base. What that base is made of depends on the ground and the intended life of the installation. Can a container house sit directly on the ground? Only where the ground is firm, level and well drained. Direct contact with soil traps moisture under the unit and accelerates corrosion at the most vulnerable point of the structure, which is why most projects raise the floor slightly above grade. Can a container house be installed on uneven ground? Yes — with the right base. Piers, screws and adjustable supports correct the difference in level below the unit. What must not happen is the unit itself being twisted to follow the ground. How long does site preparation take? It depends almost entirely on the option and the ground. A compacted pad can be prepared quickly once access exists; a concrete slab involves excavation, formwork, pouring and curing time before anything can be placed on it. Confirm the sequence with the contractor and the install crew before the delivery date is fixed. The Takeaway The foundation is not the last decision in a container house project — it is the first one that affects everything else. Decide the base early, check it against the actual ground, and confirm it before the units leave the factory. Everything after that gets easier. Send us your site conditions Related Reading How Many Container Houses Fit in a 40ft Container? Loading Guide for Flat-Pack, Folding & Expandable Units How to Import Container Houses from China: From Inquiry to On-Site Installation