Z-type Folding Container House Installation Guide

What is a folding container house?

A folding container home is a modular building product based on the traditional container structure. Its core feature is its foldable design, with "X" and "Z" folding styles being popular. This design also saves space in transportation and storage. While it has been around for many years, recent years have seen significant improvements in both material usage and efficiency.

A folding container home typically consists of a steel main frame, supplemented by fireproof panels, insulation, doors, and windows. After factory prefabrication, the walls and roof can be folded together using a folding mechanism, significantly reducing the unit's volume (typically to 1/4 to 1/6 of the unfolded size). During use, it can be quickly unfolded and secured with simple mechanical or manual operations, creating an enclosed space suitable for living or use. Some high-end products can also integrate plumbing, air conditioning, and other supporting facilities.

Components of a Folding Container Home

The main structure of a folding container home consists of a steel tubular frame and corrugated steel sheets. The panels are secured to the frame using high-strength bolts and welding. Due to their overall strength and durability, these homes can be either directly placed on the ground or stacked in multiple layers, adapting to various terrains and environments.

Core Components:

• Exterior and Door: These are the entrances and exits of the home and also serve as skylights, increasing natural light indoors. If used in conjunction with a solar system, they can also provide green energy.
• Enclosure Panels: Composed of wood or lightweight composite panels, they serve as the primary material for interior walls and floors, providing insulation, windproofing, and moisture-proofing, enhancing living comfort.
• Load-Bearing Frame: Usually made of steel or aluminum, this is the "skeleton" of the entire home, supporting the roof and walls and ensuring structural stability.

What kind of foundation is needed for a folding container house and how much does it cost?

Because folding container homes are relatively light (typically around 2-4 tons per unit), foundation requirements aren't as high as those for traditional brick-concrete or reinforced concrete homes. However, a suitable foundation is still required to ensure stability, moisture resistance, and settlement resistance. Common approaches include the following:

1. Simple Foundation (Short-Term/Temporary Use)

Concrete Pier Foundation: Concrete piers are cast at the four corners and under load points, typically measuring approximately 400×400×500mm.

Strip Foundation: Concrete strips are cast along the perimeter and at key load-bearing locations in the center of the container home.

Steel Frame Foundation: I-beams or channel steel frames are laid on the ground to ensure uniform load distribution throughout the home.

Suitable for temporary construction site dormitories, exhibition halls, tourist camps, etc., and can be quickly installed and removed.

Concrete Pier/Strip Foundation Price:

• Single Box: Approximately US$140 to US$420

Steel Frame Foundation (Channel/I-Beam):

• Single Box: Approximately US$280 to US$700

2. Standard Foundation (Medium- to Long-Term Use)

Integral Concrete Pad: A 100-200mm thick hardened concrete floor is cast, upon which the container home is placed. Independent Platform Foundation: Depending on the size of the building, several platforms (e.g., 1.5 x 1.5 m, 0.5 m thick) are arranged underneath to support concentrated loads.

Suitable for buildings that will be used for several years and require good moisture, wind, and subsidence resistance.

Overall concrete base cost:

• Approximately US$20 to US$42 per square meter
• Single box: US$350 to US$1200

Independent slab foundation:

• Single box: Approximately US$420 to US$1100

3. Permanent Foundation (Long-term/Fixed Building)

Reinforced Concrete Monolithic Foundation: Similar to traditional buildings, the foundation and subgrade are designed according to building codes.
Permafrost line, waterproofing layer, drainage ditches, etc. must be considered to ensure the long-term stability of the building.

Suitable for long-term residential use, office buildings, or applications for permanent construction.

Reinforced concrete monolithic foundation:

• Approximately US$42-84/㎡
• Single container: US$700-2000+.

For a multi-building project (container-assembled villas/office buildings):

• The foundation cost can account for 10%-20% of the total construction cost.

Additional Points:

• Foundation bearing capacity: Generally required to be ≥100 kPa. Reinforcement (e.g., crushed stone cushion, foundation treatment) may be required depending on the soil type.
• Moisture and Drainage: It is recommended that the foundation be ≥200 mm above the ground level and have drainage ditches around the perimeter to prevent rainwater accumulation.
• Wind and Earthquake Resistance: In windy or seismic areas, anchor bolts or steel tie bars are required to connect the foundation.

How to Expand Folding Container House(Installation Method)

This guide provides detailed assembly and deployment steps for UVO Building Materials' Z-type folding container houses, covering the entire process from tool preparation to final sealing.

1. Assembly Tools and Materials

Before starting, ensure all necessary tools and materials are ready. Always wear safety protective equipment.

• Tools: Multi-purpose wire stripper, cordless drill, glue gun.
• Materials: Connector plugs, self-drilling screws, hex socket head cap screws, corner protectors, corner brackets, baseboards, drain pipes, structural silicone sealant, wall panel fasteners.

2. Preliminary Preparation

Container Positioning

Hook the lifting hook at the lower lifting lug. Slowly lift the container and place it in a suitable deployment position.

Disassembling Packaging Components

• Intermediate Support: Remove the bolts from the intermediate support components and remove them.
• Corner Posts: Remove the bolts from the four corner support posts and remove them to allow for deployment.

3. Main Assembly Steps

Step 1: Container Deployment

Hook the lifting hook at the upper lifting lug. Slowly lift the top frame until the container uprights are vertical (90 degrees). After raising, slowly lower the top frame.

Key Tip: Ensure all electrical wires are tucked inside the container and not exposed during this process.

Step 2: Secure the Container Uprights

Adjust the upright position until the holes align with the top and bottom frames. Use hex socket head cap screws to vertically connect and secure the uprights.

Step 3: Unfold the Wall Panels

One worker supports the bottom of the wall panel on one side while others lift it upright. Repeat this process on the other side.

Step 4: Initial Wall Panel Securing

Use wall panel fasteners and screws to secure the panels, especially at the reinforcing ribs.

4. Finishing and Utilities

Drain Pipe Installation

Cut the drain pipe to the appropriate size. Insert it first into the bottom inlet, then into the top inlet, and secure it with self-drilling screws.

Electrical Connections

Use wire strippers to strip the wire sheaths. Insert the copper wires into the connectors according to the color codes and tuck them into the sides of the uprights. Finally, remove the protective foam from the sockets.

Interior Finishing

• Corner Protectors: Secure the brackets to the channel steel using self-drilling screws (top and bottom), install the corner protectors, and apply sealant.
• PVC Baseboard: Remove the clip strips, position the baseboard, secure it with screws, and then reinstall the clip strips.

Final Wall Panel Fixing and Sealing

• Fixing: Use 75mm self-drilling screws for 50mm thick panels and 100mm self-drilling screws for 75mm thick panels, securing the panels to the top and bottom frames on both the inside and outside.
• Sealing: Apply sealant to all joints between the exterior wall columns and the panels to ensure good weather-resistant sealing.

5. Assembly Complete

After following all the above steps, the Z-type folding container is assembled and ready for use.