| Project Scope |
Reference project size |
50–200 |
m² per home |
Confirm whether the quoted area is gross floor area or usable internal area. |
| Factory Price |
Basic modular building package |
US$900–US$1,800 |
per m² |
Usually covers the factory-built structure and standard finishes; foundations, land, taxes, and utility connections may be excluded. |
| Design and Engineering |
Adaptation to local codes and site conditions |
5%–12% |
of factory package value |
Allow for structural calculations, architectural drawings, energy compliance, and permit documentation. |
| Site Preparation |
Groundwork and foundation allowance |
10%–20% |
of total construction cost |
Actual cost depends on soil, slope, drainage, seismic requirements, and foundation type. |
| International Freight |
Ocean shipping and export handling |
5%–15% |
of factory package value |
Use a confirmed quotation based on origin port, destination port, cargo volume, season, and Incoterms. |
| Cargo Configuration |
Standard container internal dimensions |
12.03 × 2.35 × 2.39 |
m for a typical 40-foot high-cube container |
Oversized modules may require flat-rack, open-top, or breakbulk shipping instead of standard containers. |
| Container Payload |
Typical maximum cargo weight |
Approximately 26–28 |
metric tonnes, subject to container rating |
The lower limit may be imposed by road regulations, lifting equipment, or the transport route. |
| Transit Time |
Port-to-port ocean transit |
20–45 |
calendar days |
This excludes factory production, port waiting time, customs clearance, inland delivery, and possible transshipment. |
| Cargo Insurance |
Marine cargo coverage |
About 0.3%–1.0% |
of insured cargo value |
Check exclusions for moisture, delay, improper packing, loading damage, and installation-related loss. |
| Customs Classification |
Harmonized System code |
Destination-specific |
per product and country |
Panels, steel frames, complete buildings, sanitary items, and electrical equipment may use different classifications. |
| Import Duty |
Customs tariff allowance |
0%–20%+ |
of customs value, depending on classification |
The exact rate depends on the importing country, origin rules, trade agreements, and declared product composition. |
| VAT or GST |
Import consumption tax |
Destination-country rate |
often applied to customs value plus duty and freight |
Confirm whether the buyer can recover the tax and whether local registration is required. |
| Customs Clearance |
Brokerage, documentation, and port fees |
US$500–US$3,000+ |
per shipment, excluding duties and taxes |
Budget additional storage, inspection, demurrage, examination, and terminal handling charges. |
| Financing Structure |
Common staged payment schedule |
20% / 40% / 30% / 10% |
deposit / production / pre-shipment / acceptance |
Use milestone payments linked to approved drawings, factory inspection, shipping documents, and site acceptance. |
| Payment Security |
Documentary and contractual controls |
Inspection plus retention of 5%–10% |
of contract value |
Consider third-party inspection, performance security, warranty terms, and clearly defined acceptance criteria. |
| On-Site Assembly |
Installation duration |
2–6 |
weeks for a small or medium project |
The schedule depends on module count, foundation readiness, weather, crane access, and local labor availability. |
| Installation Team |
Typical site labor requirement |
4–8 workers plus crane crew |
per active installation team |
Verify local licensing, safety training, temporary accommodation, travel, and supervision requirements. |
| Heavy Lifting |
Mobile crane and lifting logistics |
US$5,000–US$25,000+ |
per project, depending on capacity and location |
A lift plan must consider module weight, radius, ground bearing capacity, power lines, road access, and wind limits. |
| Utility Connections |
Water, wastewater, electricity, and communications |
5%–15% |
of overall project budget |
Remote sites may require wells, septic systems, generators, batteries, or independent water treatment. |
| Contingency |
Allowance for unknown project risks |
10%–15% |
of total project budget |
Keep this reserve for exchange-rate movement, design changes, delays, local code upgrades, and site conditions. |
| Total Delivery Timeline |
Design-to-handover duration |
5–10 months |
typical small-to-medium international project |
Include design approval, permits, production, inspection, shipping, customs, foundation work, assembly, and commissioning. |
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