700mm Double Wing Expandable House Buying Guide: Dimensions, Features, and Applications

A 700mm Double Wing Expandable House is a transportable building whose two side wings open to create additional usable interior space. The “700mm” designation should not be treated as the unit’s complete size: buyers need to confirm whether it describes a wing component, a model option, or another dimension in the supplier’s specification. Before requesting a quotation, compare the closed transport dimensions with the fully expanded dimensions, intended use, site conditions, and local requirements.

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At Hongshun Guangju, we recommend starting with a dimensioned drawing and a project brief rather than relying on a product name alone. A useful conversion for planning is 700 mm = 0.7 m, but that figure does not establish the house’s overall width, length, or height. The guide below explains what to verify, how to match the unit to an application, and what to ask a supplier before placing an order.

Key Takeaways

• Confirm exactly what “700mm” identifies and request both closed and expanded dimensions.
• Check the two-wing layout, structural details, finishes, openings, and service provisions against your project needs.
• Evaluate transport access, foundations, installation arrangements, permits, and the final site layout before purchase.
• Ask suppliers to itemize configuration, quantity requirements, production timing, shipping, and after-sales support.

Who This Buying Guide Is For

This guide is intended for contractors, property developers, accommodation operators, site managers, and procurement teams comparing expandable buildings for a defined project. It is especially relevant when a buyer needs a compact transport configuration but expects more interior space after deployment. The right configuration depends on the site, occupancy, climate, intended duration of use, and local building rules.

It is not a substitute for project-specific engineering, permitting, or installation advice. Requirements can differ by jurisdiction and site conditions, so buyers should confirm them with the relevant professionals and authorities. Treat product information as a starting point for evaluation, not as proof that a particular unit will meet every local requirement.

How a Double Wing Expandable House Works

Basic layout and purpose

A double wing expandable house is designed to be transported in a more compact configuration and opened at the destination. Its two wings extend from the central structure to form a broader usable floor area. The exact opening method, structural connections, and internal layout vary by product design, so request drawings and operating instructions for the proposed model.

Potential applications include temporary accommodation, project-site offices, staff facilities, reception spaces, or other modular-use settings. Suitability depends on the supplied specification and the way the building will be installed and serviced. Buyers should confirm whether the proposed unit includes the interior features, openings, insulation, and utility provisions needed for their particular use.

Dimensions and Specifications to Verify

Do not compare offers using the “700mm” label alone. Ask for a drawing that clearly identifies the meaning of that measurement and provides the complete dimensions in both transport and deployed states. A 700 mm measurement equals 0.7 m, but it should not be interpreted as the overall width or floor area unless the supplier’s drawing explicitly says so.

Ask the supplier to distinguish quoted specifications from optional upgrades. For example, a stated electrical provision should identify what equipment or connections are included, rather than implying that every utility is ready for use. If the project has load, insulation, fire-safety, wind, or snow requirements, provide those requirements early and ask what documentation or design adjustments are available.

Materials, Features, and Configuration Options

Expandable houses may be offered with different frame, wall, roof, floor, and interior finish options. The best choice depends on the intended service environment and the performance requirements specified for the project; a material name alone does not establish suitability. Request a bill of materials or a clear written description of the offered construction, including any limitations or exclusions.

Plan the interior around its use

For accommodation, consider privacy, ventilation, storage, circulation, and the location of doors and windows. For an office or site facility, prioritize work zones, access, power planning, and any required meeting or storage areas. For a reception or service space, review customer access, visibility, and the placement of counters or partitions.

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Ask whether the layout can be adjusted and which changes affect price or production. Window locations, internal partitions, finish choices, and service points can influence usability, but availability must be confirmed for the specific model. Use a marked floor plan to communicate requirements and avoid assumptions based on product images.

Match the House to the Application

Temporary project facilities

For construction or infrastructure projects, compare the transport footprint, deployment area, site access, and expected period of use. Confirm who will prepare the base, unload the unit, carry out expansion, and connect any services. A supplier’s delivery scope may not include local lifting equipment, civil works, or utility connections, so confirm responsibilities in writing.

Accommodation and commercial use

For staff accommodation or visitor-facing use, assess privacy, access, ventilation, sanitation, and local occupancy requirements before selecting a layout. Ask whether fixtures and services are included or require separate procurement. The intended use may also affect permits, fire-safety provisions, and inspection requirements, which the buyer should verify for the destination.

Buyer Selection Framework

1. Define the project: Record intended use, occupancy, site location, operating conditions, and expected service period.
2. Confirm the dimensions: Request a drawing with transport and expanded measurements, usable area, clear openings, and the meaning of the 700 mm designation.
3. Check the site: Verify access routes, delivery and unloading arrangements, ground preparation, drainage, and the space required to open both wings.
4. Specify the configuration: List required materials, layout, doors, windows, interior finishes, and utility provisions.
5. Review compliance and installation: Identify applicable local requirements and confirm who is responsible for design documents, permits, installation, and connections.
6. Compare complete quotations: Check the same scope across suppliers, including packaging, shipping terms, optional items, lead-time basis, and support.

When discussing deployment, make sure the site plan accounts for the full expanded footprint, not just the transport configuration. The two wings need room to open, and the exact clearance should come from the proposed unit’s drawings and installation instructions. If the supplier cannot provide those details, pause the comparison until the layout and operating requirements are clear.

Pricing, MOQ, and Lead Time

There is no reliable universal price or lead time for a 700mm Double Wing Expandable House without a defined configuration and delivery scope. Costs can vary with dimensions, materials, interior fit-out, customization, order quantity, packaging, destination, and transport arrangements. Request an itemized quotation that separates the base unit from options and identifies what is excluded.

Ask whether a minimum order quantity applies and whether the quoted production schedule begins after drawing approval, deposit, or another agreed milestone. Confirm how design changes affect price and schedule, and request a written process for approving drawings before production. Shipping time, customs clearance, site readiness, and installation should be discussed separately from manufacturing lead time.

Supplier Evaluation Checklist

• Can the supplier provide drawings showing closed and expanded dimensions?
• Is the 700 mm designation clearly defined in the specification?
• Are materials, included fittings, options, and exclusions documented?
• Does the quotation explain MOQ, payment milestones, production timing, packaging, and delivery terms?
• Can the supplier clarify installation responsibilities and provide relevant operating information?
• Are project-specific compliance documents available where required, without implying unverified certification?

At Hongshun Guangju, we can review your intended application, destination, quantity, preferred layout, and site constraints to help clarify a suitable specification for quotation. Share a site plan or a list of required dimensions where available, and identify any local codes or project standards that must be considered. This gives both parties a clearer basis for discussing configuration, delivery scope, and next steps.

Conclusion: What to Do Before You Buy

A 700mm Double Wing Expandable House can be a practical option when a project needs a transportable building that expands into a wider layout, but the model name alone is not enough to determine fit. Confirm what the 700 mm refers to, obtain transport and deployed drawings, and match the structure, interior, services, and site arrangements to the intended application. Then compare itemized supplier quotations on the same scope, including MOQ, schedule, delivery, installation responsibilities, and documentation.

Your next step is to prepare a short project brief with the destination, intended use, quantity, required layout, and site access details. Send it to Hongshun Guangju to discuss the specification and request a project-based quotation. Clear dimensions and scope at the outset help buyers make a more informed sourcing decision.