40ft Flat Roof Expandable Container House

Designed for versatility and rapid deployment, the 40ft Flat Roof Expandable Container House offers a premium living solution that bridges the gap between temporary shelter and permanent housing. With a folded profile that ensures cost-effective shipping and an innovative expansion system, this unit transforms into a spacious home (approx. 74 sqm) in minutes. Featuring a robust Q235B galvanized steel frame and superior insulation, it is engineered to withstand diverse climates while providing a modern, comfortable interior with a generous 2.4m ceiling height. This model is ideal for family housing, site offices, or luxury glamping accommodations.

This 40ft expandable container house is a top choice for export markets due to its efficient folding design and massive interior space. Its core advantages lie in convenient transportation (folds to just 2.2m wide) and rapid on-site assembly.

Below is the core technical specification table extracted from your provided documents.

Technical Specifications

Category	Item	Specification
Dimensions	External Size (Expanded)	6800mm × 11800mm × 2560-2570mm
	Internal Size (Net Space)	6640mm × 11440mm × 2400mm (Internal Height)
	Folded Size (Shipping)	2200mm × 11800mm × 2560-2570mm
	Total Weight	2.8 Tons
Main Structure	Middle Roof/Floor Beam	80×80×4.75mm Q235B Galvanized Steel Pipe
	Purlins (Roof/Floor)	40×60×1.5mm Q235B
	Side/End Wall Frames	60×80×1.5mm P-Type Pipe Q235B
	Folding Hinges	13mm Galvanized High-Strength Hinges
	Surface Treatment	Electrostatic Powder Coating / Pure White Powder (Rust-proof & Aesthetic)
Walls & Insulation	Roof Insulation	50mm Flame-Retardant Purification Foam Board
	Wall Panel Material	65mm Glass Wool Sandwich Panel OR 65mm Flame-Retardant Purification Foam Board
	Internal Partitions	50mm Flame-Retardant Purification Foam Board
Flooring System	Middle Area Flooring	18mm Calcium Silicate Board
	Side Area Flooring	18mm Bamboo Fiber Board
	Floor Finish	2.0mm PVC Vinyl Flooring
Electrical System	Voltage/Frequency	220V / 50HZ
	Wiring Standard	Moisture-proof installation, CE Certified components
	Standard Fittings	LED Lights ×2, Ceiling Lights ×2, 5-Hole Sockets ×3, Switch ×1, 10-Hole Sockets ×3, A/C Socket ×1, 20A Circuit Breaker ×1
Other Config	Bathroom Size	1800mm × 1280mm (Adjustable)
	Lifting Lugs	150×170×120×20mm Reinforced Lifting Head

Key Highlights

High Space Utilization: Expands to a width of 6.8 meters with an internal ceiling height of 2.4 meters, providing a spacious living environment without feeling cramped.
Robust Structure: Main beams utilize 4.75mm thick Q235B steel, far exceeding standard market thickness, ensuring no deformation after multiple folding cycles.
Easy Installation: Fully prefabricated electrical system and reserved bathroom space allow for a true “Plug-and-Play” experience.