| Building system | Identify whether the home uses light-gauge steel, structural steel, timber, precast concrete, or a hybrid system. | Request structural drawings, material specifications, connection details, and design loads for the intended site. | The structural system affects weight, transport, assembly, durability, and suitability for local conditions. |
| Usable floor area | Compare internal usable area separately from gross floor area and covered outdoor space. | Ask for dimensioned floor plans and a written area schedule; confirm how walls, stairs, and balconies are counted. | Quoted areas may use different measurement conventions, making headline prices difficult to compare. |
| Scope of supply | List what is included: structure, insulation, windows, doors, interior finishes, kitchen, bathroom, and building services. | Require an itemized bill of quantities and a clear list of exclusions, allowances, and owner-supplied items. | A low base price may exclude significant components needed to make the home complete and usable. |
| Thermal performance | Check insulation type and thickness, window glazing, air sealing, and stated wall, roof, and floor performance. | Request product data sheets and calculated U-values or other performance figures for the complete assemblies. | Performance depends on the full building envelope and climate, not insulation thickness alone. |
| Wind, snow, and seismic design | Confirm the design criteria match the destination site's wind speed, snow load, exposure, and seismic requirements. | Request signed structural calculations and drawings prepared or reviewed for the project's applicable building codes. | A design intended for one location may not be suitable for a different hazard zone or foundation condition. |
| Fire and material documentation | Review fire-related specifications for structural materials, insulation, cladding, and interior finishes. | Ask for test reports or certifications relevant to the destination market and the exact products being supplied. | Fire performance requirements vary by jurisdiction, building use, and component; generic claims may not be sufficient. |
| Quality management | Assess factory inspection procedures, traceability, workmanship checks, and how defects are recorded and corrected. | Request a quality-control plan, inspection records, and details of any applicable quality-management certification. | Documented production controls make it easier to identify and resolve manufacturing issues before shipment. |
| Customization and approvals | Check which changes are possible and whether revisions affect engineering, price, or production dates. | Request a revision schedule and confirm who provides local permit drawings, engineering, and code checks. | Custom layouts and finishes can affect compliance, lead time, and total project cost. |
| Shipping and packaging | Confirm shipment method, packaging, loading plan, delivery point, and responsibility for freight and cargo insurance. | Request a written shipping quotation that identifies the named delivery location and applicable Incoterms® rule and version. | Freight, port handling, inland transport, and unloading can materially change the delivered cost. |
| Installation requirements | Determine whether assembly is included and what site access, lifting equipment, crew, and foundation work are required. | Ask for an installation manual, crew requirements, estimated on-site sequence, and a foundation interface drawing. | Factory completion does not necessarily include site preparation, utility connections, or final commissioning. |
| Schedule and production capacity | Separate design approval, manufacturing, shipping, and on-site assembly milestones. | Request a project-specific schedule with dependencies, approval deadlines, and procedures for reporting delays. | Production time alone does not represent the total time from order to occupancy. |
| Warranty and after-sales support | Review warranty duration, coverage, exclusions, claim procedures, and availability of replacement parts. | Obtain the warranty document and confirm how support is provided in the destination country. | Clear, practical remedies are important when repairs involve imported components or specialist labor. |
| Total project cost | Compare the complete delivered and installed scope, not only the factory price. | Build a landed-cost estimate covering product, freight, duties and taxes, foundations, permits, installation, and utilities. | A consistent cost basis helps reveal differences in scope and reduces the risk of unexpected expenses. |