
Expandable Double-Wing Houses
20 ft, 30 ft and 40 ft reference models with selectable room layouts for project use.

B2B Project Orders · MOQ 5 Units
HEFENG Modular supports contractors and project owners with configurable buildings for workforce accommodation, construction camps, site offices and remote facilities.
Custom layouts
Factory production
Export packing
Installation support
Modular building systems
The right configuration starts with the site, intended use, required quantity, internal layout and transport plan—not a one-size-fits-all retail package.

20 ft, 30 ft and 40 ft reference models with selectable room layouts for project use.

Compact folding units for temporary accommodation, offices, storage and project support spaces.

Specialty modular cabins with distinctive exterior forms and integrated interior packages.
Saudi Arabia & Middle East projects
HEFENG Modular can review commercial building configurations for contractors and project owners serving Saudi Arabia and the wider Middle East. Final compliance and engineering responsibilities are confirmed for each destination and project scope.
Review temperature exposure, dust, occupancy and required HVAC allowances with the project engineering team.
Confirm electrical supply, socket format, utilities, fire strategy and local approval responsibilities before production.
Check unit dimensions, shipment condition, destination port, inland route, unloading equipment and site access.
Define surveys, foundations, permits, utility connections, lifting, labor and installation supervision in the supply boundary.

Project applications
Sleeping units, washroom modules and shared living facilities.
Project offices, meeting rooms, dining, laundry and support buildings.
Modular spaces planned for transport, site assembly and phased expansion.
Reception, retail, hospitality and temporary operational facilities.
Project workflow
Every quotation should define the product configuration, customer responsibilities, supply scope and delivery interfaces.
Location, application, quantity, layout, utilities and delivery schedule.
Unit type, room plan, materials, electrical standard and supply boundary.
Manufacturing sequence, inspection points, packing and loading plan.
Shipment documents, installation information and agreed technical support.
Project review package
A qualified modular building enquiry should result in a documented scope that procurement, engineering and site teams can review together.
Unit models, quantities, room uses, finishes and optional equipment recorded for commercial review.
Agreed room arrangements, openings, utility points and relevant site interfaces prepared for confirmation.
Manufacturing responsibilities, agreed inspection points and acceptance documents defined before production.
Loading information, packing scope and available installation guidance coordinated for the delivery plan.
Frequently asked questions
HEFENG Modular handles B2B project orders with a standard minimum order of five units. The final quantity and building mix are reviewed against the application and delivery plan.
Yes. Layout coordination can begin after the project location, population, room schedule, shared facilities, utilities and development phases are defined.
The current range includes double-wing folding houses, folding container units, quick-assembly buildings, mobile restrooms and specialty modular spaces.
Project configurations can be reviewed for the destination, intended use and operating conditions. Electrical standards, insulation, HVAC allowances and local compliance responsibilities must be confirmed for each project.
Remote guidance or an agreed on-site support scope can be reviewed where applicable. Local labor, lifting, civil works, permits and site safety responsibilities must be defined in the proposal.
Commercial enquiries only