Are you a factory or a trading company?
We are the original manufacturer with our own production facility. You are welcome to visit our factory.
What after-sales services do you provide?
We provide installation manuals and SOPs, video guidance and online technical support. Overseas engineer support can also be arranged according to project requirements.
What payment methods do you accept?
We accept bank transfer (T/T) and Trade Assurance orders. Final payment terms are confirmed in the quotation or contract.
How can we verify product quality after placing an order?
Before delivery, we provide photos and videos for quality checking. Buyers may also arrange their own inspection or appoint an independent third-party inspection company.
How are our payment and order protected?
We can provide our business license and available certificates for verification. Trade Assurance can also be used for eligible orders to help protect the buyer's payment.
Can we discuss agency or distribution rights for your products?
Yes. We welcome discussions on product agency and distribution rights. We can provide product and technical training, sales support and access to consumable spare parts. Territory and cooperation terms can be confirmed in a formal agreement.
Our Process Advantages
A clear comparison of SUNRUN construction standards and common entry-level market practices.
| Process Area | SUNRUN Standard | Common Market Practice |
|---|---|---|
| 01Frame | Fully galvanized steel with electrostatic powder coating, reinforced lifting heads and a balanced load-bearing frame. | Black steel or partially protected frames; reinforcement and corrosion-protection details are often unclear. |
| 02Profile Density | Closer steel-member spacing provides stronger floor support, better stability and greater resistance to deformation. | Reduced steel sections or wider spacing may lower cost but can increase floor vibration and structural movement. |
| 03Embedded Hinge | Recessed galvanized hinges sit flush with the floor for a smooth surface and a cleaner finished appearance. | Exposed welded hinges may protrude above the floor and leave uneven welds or finishing gaps. |
| 04Roof Waterproofing | A 0.8 mm corrugated steel center roof supports effective drainage and more reliable long-term waterproofing. | Sheet-roof joints often rely on waterproof tape that can age, loosen or create leakage risks. |
| 05Wall Insulation | 75 mm EPS exterior walls and 50 mm interior partitions, with PU, rock-wool and other climate-specific upgrades. | Basic 50–65 mm EPS panels with fewer insulation grades and limited climate-specific options. |
| 06Windows & Glass | Thermal-break aluminum frames with double, triple, Low-E or laminated glazing and customizable sealing systems. | Standard uPVC, aluminum or single-glass systems; profile, hardware and sealing grades may be unspecified. |
| 07Electrical Wiring | Destination-standard circuits, concealed wiring, separated protection and protected folding points, factory tested. | Basic direct wiring with limited protection at folding points and incomplete circuit-sizing details. |
| 08Bottom Insulation | PU spray or EPS insulation with optional graphene floor heating forms an integrated insulation, moisture-control and heating system. | A basic floor substrate or simple EPS filling, often without a complete bottom-insulation or heating system. |
| 09Bathroom Drainage | Concealed pipework with floor slope, drainage speed and joint sealing checked before shipment. | Exposed or basic PVC drainage with limited information on slope, sealing and pre-delivery testing. |
| 10Interior Finish | Bamboo-wood fiber wall and ceiling panels with coordinated trim reduce or eliminate secondary on-site finishing. | Galvanized color-steel interiors and sealant-finished gaps provide a more basic appearance and living comfort. |
Visual Process Comparison
Selected production details from the supplied material and process comparison file.
Frame
Embedded Hinge
Roof Waterproofing
Electrical Wiring
Bottom Insulation
Bathroom Drainage
F550 20ft Expandable Container House
A compact F550 20ft double-wing expandable shell offering approximately 28.5 m² of open-plan space. Suitable for buyer-completed residential, office, accommodation, retail or project applications.
Product Overview
Quick-Expansion Design
The 20-foot dual-wing structure expands rapidly on both sides, offering greater usable space than standard containers.
Robust Steel Frame
Built with durable steel construction, it features excellent stability, high strength, and a long service life, suitable for various site conditions.
Flexible Interior Layout
Ideal for multiple uses including bedrooms, offices, living rooms, kitchens, bathrooms, temporary accommodations, or mobile workspaces.
Easy Transportation and Installation
Its compact 20-foot size facilitates convenient sea and land transport; once delivered, quick assembly saves labor and time costs.
Customizable Options
Doors, windows, wall panels, flooring, electrical and plumbing systems, colors, and interior layouts can all be customized according to project requirements.
Double-Wing Expandable Shell
28.5 m² Open-Plan Space
Buyer-Completed Interior
Modular Project Unit
Prefabricated Container House
Product Gallery
Floor Plans
Open-Plan Expandable Shell
Bedrooms: Open Plan
Floor Area: Approx. 28.5 m²
Depends on final fit-out
Open-plan expandable shell supplied without fixed bedrooms, kitchen or bathroom divisions. The approximately 28.5 m² interior is intended for the buyer to complete after delivery for residential, office, accommodation, retail or other project use.
Technical Specifications
Dimensions shown are for the confirmed F550 base configuration. Final dimensions and weight are verified against the signed production specification.
Expanded Dimensions
L5900 × W4830 × H2480 mm
Internal Dimensions
L5460 × W4250 × H2310 mm
Folded Dimensions
L5900 × W550 × H2480 mm
Floor Area
28.5 m²
Approx. Weight
Approx. 3.5 metric tons (3,500 kg)
Recommended Electrical Capacity
12 kW
Factory-prefabricated structural and enclosure system. Final material schedule is confirmed before production.
Main Frame
Upper main beam: 80×80×2.5 mm; lower main beam: 60×80×2.5 mm; cross beams: 2.0 mm bent steel components; uprights and lifting heads: 2.0 mm bent steel components with 6 mm inner reinforcement plates.
Side Frame
Top frame: 40×80×1.5 mm P-shaped tube, 40×80×1.5 mm square tube and 2.0 mm bent steel components; bottom frame: 60×80×2.0 mm and 80×80×1.5 mm square tubes; 13 mm galvanized folding hinges.
Protective Coating
Electrostatic powder coating.
Roof System
0.35 mm galvanized roof sheet; 50 mm EPS inner roof panel and 50 mm EPS ceiling panel.
Wall Panels
50 mm EPS sandwich panels for external walls.
Flooring
18 mm fire-resistant magnesium oxide board for central and side flooring, finished with 2.0 mm PVC flooring.
Designed for efficient transportation and rapid on-site expansion. The F550 provides an open-plan shell for buyer-completed interior fit-out after delivery.
Installation Time
Less than 1 hour after site preparation
Wind Resistance
Grade 3 hurricane resistance
Sound Insulation
Up to 60 dB
Snow Load
Up to 1.0 kN/m²
Design Service Life
More than 50 years with proper installation and maintenance
Utility Connections
Electrical and plumbing systems can be prepared for on-site connection
Configuration & Applications
Fully galvanized coated steel frame
50 mm EPS exterior wall panels
50 mm EPS inner roof and ceiling panels
18 mm fire-resistant magnesium oxide flooring base
2.0 mm PVC floor finish
930 × 930 mm windows
Factory-prepared electrical system
Open-plan shell without fixed internal room divisions
PU wall insulation
Graphene electric floor heating
Thermal-break aluminum windows
Double, Low-E or laminated glazing
Customized kitchen and bathroom
Solar, inverter and battery system
Buyer-completed residential unit
Office or studio
Guest or rental accommodation
Farm and rural building
Retail or service space
Project-site facility
Packaging & Shipping
Packaging Method
Protective factory packing for container transport
Folded Dimensions
L5900 × W550 × H2480 mm
Shipment Weight
Approx. 3.5 metric tons (3,500 kg); confirm before shipment
Container Type
40HQ, subject to final shipping plan
Loading Quantity
Unloading Equipment
Crane or suitable lifting equipment selected for site conditions
Installation Support
Installation drawings, video guidance and remote technical support can be provided. Site foundation, lifting and local utility connection remain project-specific.
Logistics Notes
Container loading and route planning are confirmed from the final product configuration, destination and port requirements.
Frequently Asked Questions
Is the F550 supplied as an open-plan shell?
Yes. The F550 is supplied as an expandable open-plan shell without fixed internal bedrooms, kitchen or bathroom divisions.
Can the insulation be upgraded for cold climates?
Yes. PU insulation, thermal-break aluminum windows, insulated or Low-E glazing and electric floor heating can be specified for the project climate.
Who completes the interior fit-out?
The buyer or appointed local contractor completes the interior layout and fit-out after delivery. The supplied scope is confirmed before production.
Can SUNRUN provide a solar power system?
Yes. Solar panels, hybrid inverter, battery storage and project-specific cable packages can be integrated after the electrical load and destination requirements are confirmed.
How is the unit transported and installed?
The house is folded for container transport, unloaded with suitable lifting equipment and expanded on the prepared foundation. Final logistics and lifting plans are confirmed per project.
What information is needed for a quotation?
Please provide destination, quantity, intended use, preferred layout, insulation level, electrical standard, interior finish and required optional systems.
Explore the Range
Related Product Families
Use these collection links to compare other modular building formats and open their available product pages.
Expandable Homes
More usable interior space with compact transport dimensions.
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Folding Container Houses
Fast-deploying structures for temporary and project-based use.
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Modular Project Buildings
Modular building blocks for offices, camps and accommodation.
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Apple Cabin Houses
Contemporary compact cabins for hospitality and private use.
Open collection →Collection pages serve as the index for current and future product detail pages.
Configure the F550 for Your Project
Tell us the destination, quantity, use, climate and required configuration. SUNRUN will prepare a matched technical proposal and quotation.