There is no universal container cost per foot or cost per bed. An estimate without a drawing, material schedule and clear inclusions should not be treated as a confirmed order price.
1. Shell versus purpose-built frame
A second-hand ISO container, a new shipping container and a purpose-built fabricated steel frame start from different cost bases. Record the unit condition, steel section schedule, floor framing, steel grade, wall and roof build-up, coating preparation, design assumptions and whether certification is specifically required. A wider-than-standard or heavily opened side may require additional engineering.
2. Size and transport envelope
External length alone is not a price formula. Width, height, gross transport mass, crane lifting arrangement, loading restrictions and access to the final site can change fabrication, freight and equipment charges. Non-standard transport dimensions may require a route or permit assessment.
3. Interior, MEP and thermal specifications
Separate wall/roof insulation, ceiling and flooring, glazing, doors, partitions, waterproofing, electrical distribution, lighting, ventilation, AC, cabling and furniture. Specify material brands or performance criteria where they affect comparability. The cost of a complete site office is not the same as a bare shell.
4. Openings and structural design
Large storefront glazing, folding shutters, wide doors, rooftop accessories, large cantilevers or crane-lift points can change loads and fabrication complexity. Drawings, qualified calculations, independent review and testing are not automatically included; state what the buyer requires.
5. Freight, installation and site works
Ask whether the quote is ex-works, delivered or delivered-and-installed. Identify GST, packing, permits, truck, escort, crane, unloading, plinths, anchoring, steps, water/sewage connections and site electrification as separate items where applicable.
6. Commercial risk and payment milestones
Clarify drawing revision approval, fabrication commencement, inspection hold points, balance payment, delivery assumptions, variation charges, defects process and warranty exclusions. A low headline price can become a higher total project cost when these are missing.