Top & Bottom Pre-Welded Detachable Container House

Detachable container house catalog

Product Configuration List (Click to download)

The Top & Bottom Pre-Welded Detachable Container House is designed for camp, accommodation and temporary-building projects that require a practical balance between factory prefabrication, transportation efficiency and on-site installation speed.

The complete roof frame and base frame are welded and inspected in the factory before shipment. The columns, wall panels, doors, windows, electrical components and other accessories are packed as detachable installation kits.

This structure reduces the amount of frame alignment and welding work required at the destination while still allowing several building kits to be transported in one shipping container.

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It is particularly suitable for construction camps, mining projects, worker accommodation, site offices, canteens, classrooms, clinics, sanitation buildings and other projects where multiple repeatable units must be delivered and installed according to a controlled schedule.

Product Overview

The current Huisheng page lists a 5800 × 2480 × 2896 mm reference model with 2.3mm roof and base beams, four detachable columns, cement-fiber flooring, a steel door, two PVC windows, electrical components and 50mm rock-wool wall panels. Final specifications remain subject to the approved project drawing.

What Does “Top and Bottom Pre-Welded” Mean?

The building is divided into three main structural groups.

Factory-Welded Roof Frame

The complete roof perimeter, roof secondary beams, ceiling support members and required connection points are manufactured and welded under controlled factory conditions.

This helps maintain:

● Consistent roof dimensions

● Accurate column-connection positions

● Better alignment between units

● Reduced destination welding

● More predictable roof and drainage installation

● Easier factory inspection

Factory-Welded Base Frame

The floor perimeter frame, bottom secondary beams, corner components and floor-support structure are welded before shipment.

The floor board and selected floor finish may be factory-installed or packed separately according to the final loading plan.

Detachable Columns and Enclosure Components

The columns, wall panels, doors, windows and accessories are packed separately and connected to the roof and base frames at the project site.

This creates a hybrid structure: more factory-prefabricated than a fully knock-down house, but more transport-efficient than a fully assembled modular unit.

Comparison with Other Detachable Systems

A fully knock-down detachable house can normally achieve a higher loading quantity because even the roof and base frames are separated into individual beams. The pre-welded design sacrifices part of that maximum loading density in exchange for fewer structural parts, more factory-controlled geometry and simpler site assembly. Industry suppliers publish different loading quantities depending on which of these structural systems they sell.

Shipping More Buildings in Each Project Batch

International freight can represent a significant part of a modular camp project’s total cost.

The pre-welded detachable house is shipped in flat-packed groups rather than as one complete three-dimensional building. The roof frames, base frames, wall panels, columns, doors, windows and accessories are stacked and protected according to the approved loading plan.

This allows several complete building kits to share one 40HQ container.

The final loading quantity depends on:

● Roof-frame height

● Base-frame construction

● Steel thickness

● Total cargo weight

● Wall-panel type and thickness

● Number of internal partitions

● Bathroom materials

● Door and window quantity

● Electrical and plumbing kits

● Additional roofs or canopies

● Corridors and staircases

● Spare components

● Export-packaging thickness

● Safe unloading sequence

The quotation should therefore state:

Final loading quantity per 40HQ: subject to the approved bill of materials, packing list and loading drawing.

This is more reliable than advertising one fixed quantity for every order.

Related detachable systems are advertised with loading capacities ranging from approximately 6–12 sets for some pre-welded flat-pack formats and 14–18 sets for more completely disassembled systems. The difference demonstrates why configuration and packing method must be confirmed before freight per unit is calculated.

How Freight per House Should Be Compared

A high loading quantity can reduce the ocean freight allocated to each unit, but buyers should compare the complete delivered project rather than the container quantity alone.

The total logistics cost may include:

● Export packaging

● Factory-to-port transportation

● Origin-port charges

● Ocean freight

● Destination-port handling

● Customs clearance

● Import duties

● Container unloading

● Local delivery

● Crane or forklift costs

● Installation labor

● Replacement packaging and waste disposal

The house with the highest loading quantity is not necessarily the lowest-cost project if it requires more labor, more on-site welding, additional missing components or longer installation time.

Complete Component Kit for Every House

Each house should be supplied as a traceable component kit rather than as an unidentified collection of steel and panels.

A standard kit can be divided into the following packages.

The current Huisheng configuration includes top and base frames, columns, PVC downpipes, cladding, fasteners, an electrical-distribution kit, a steel door, two PVC windows and insulated wall panels.

Bill of Materials Before Shipment

After the layout and specification are confirmed, the project should receive a bill of materials showing:

● Component name

● Specification

● Material

● Thickness

● Quantity per unit

● Total project quantity

● Package number

● Optional or standard status

● Spare quantity

● Installation location

The bill of materials should match the packing list and installation drawing.

This helps the buyer check materials after arrival and reduces disputes about whether bathroom items, electrical components, internal partitions or spare parts were included.

Installation Team Requirements

The house is designed for assembly by a small trained construction team.

A practical project team may include:

● One installation supervisor

● Three to five structural and panel installers

● One electrician

● One plumber when bathrooms are included

● One crane or forklift operator when required

● Additional workers for large camp projects

The exact team size depends on:

● Number of houses

● Site layout

● Worker experience

● Foundation readiness

● Availability of lifting equipment

● Bathroom configuration

● Internal partitions

● Multi-storey construction

● Corridors and canopies

● Weather conditions

The main roof and base frames arrive pre-welded, which reduces individual beam assembly. However, the columns, wall panels, doors, windows, sealing, electrical systems and final inspection must still be completed correctly.

The page should therefore avoid promising “installation in under one hour” unless your factory has a continuous, unedited installation video proving that result under defined conditions.

Recommended Installation Tools

A standard installation team may require:

● Crane or forklift

● Lifting slings

● Spreader bar where required

● Electric impact wrench

● Electric drill

● Rivet gun

● Screwdrivers

● Spanners and socket set

● Spirit level

● Laser level

● Tape measure

● Sealant gun

● Cutting tools

● Ladders or mobile scaffold

● Personal protective equipment

● Electrical test equipment

Multi-storey buildings, corridors and roof systems may require additional lifting and access equipment.

You can refer here for the specific installation steps.

Site Installation Process

Step 1: Confirm the Packing List

Before assembly begins, the installation supervisor checks the number of roof frames, base frames, columns, panels, doors, windows and accessory boxes.

Missing or visibly damaged components should be recorded before installation.

Step 2: Prepare the Foundation

The foundation or support points must be stable, level and positioned according to the approved drawing.

Possible support systems include:

● Concrete slab

● Concrete footings

● Concrete piers

● Steel support frame

Step 3: Position the Base Frame

The pre-welded base frame is unloaded and placed on the prepared supports.

The team checks:

● Orientation

● Diagonal dimensions

● Floor level

● Support contact

● Anchor locations

● Utility outlet positions

Step 4: Install the Columns

The four structural columns are connected to the base frame using the specified bolts and connection components.

Temporary bracing may be used until the roof frame is installed.

Step 5: Lift the Roof Frame

The factory-welded roof frame is lifted and aligned above the columns.

All structural bolts are installed and tightened according to the approved sequence.

Step 6: Check the Main Frame

Before installing panels, the team verifies:

● Overall length and width

● Vertical column alignment

● Frame diagonals

● Roof level

● Base-frame level

● Bolt tightness

Step 7: Install Wall Panels

External and internal panels are installed according to the elevation and floor-plan drawings.

Panel joints, corners and openings must remain aligned.

Step 8: Install Doors and Windows

Doors and windows are positioned, fixed and checked for smooth operation.

The team confirms that:

● Frames are square

● Doors close correctly

● Locks function

● Windows slide correctly

Step 9: Complete Roof and Drainage Components

Roof sheets, flashings, waterproof tape, gutters or downpipes are installed according to the selected system.

Step 10: Complete Electrical and Plumbing Work

Electrical kits, lights, switches, sockets and air-conditioner points are connected.

Water supply and drainage are completed when the house includes a bathroom, kitchen or laundry facility.

Step 11: Apply Sealing Materials

Weather-resistant sealant and waterproof tape are applied at:

● Roof joints

● Panel joints

● Corners

● Door frames

● Window frames

● Floor connections

Step 12: Complete Final Testing

The final inspection covers:

● Structural connections

● Floor level

● Doors and windows

● Roof drainage

● Waterproofing

● Electrical circuits

● Lights and sockets

● Water supply

● Drainage

● Interior finish

Repeated Dismantling and Relocation

The bolted modular structure allows the building to be dismantled and moved when a project ends or changes location.

This can be valuable for:

● Construction contractors

● Mining companies

● Oil and gas projects

● Infrastructure projects

● Agricultural operations

● Rental companies

● Emergency-response organizations

● Temporary government facilities

Instead of abandoning a conventional temporary building, the project owner may dismantle the container-house units, transport the reusable components and install them at another site.

Detachable systems are commonly marketed for reuse and relocation because the main components are connected mechanically rather than permanently constructed at the destination.

Reusable Does Not Mean Unlimited Dismantling

Repeated assembly must be managed correctly.

Before reinstalling a previously used house, the following components should be inspected:

● Roof-frame welds

● Base-frame welds

● Column straightness

● Connection holes

● Structural bolts

● Wall-panel edges

● Door and window frames

● Floor boards

● Electrical cables

● Plumbing pipes

● Waterproof tape

● Sealing strips

● Silicone

● Locks and hinges

Sealant, waterproof tape, damaged fasteners and certain panel-edge materials may need to be replaced during relocation.

A house should not be marketed as capable of unlimited dismantling without maintenance. Its reuse potential depends on handling, storage, transport protection, installation quality and the condition of the components.

Relocation Process

A controlled relocation process can include:

1. Disconnecting electricity, water and drainage
2. Removing furniture and loose equipment
3. Recording the existing building condition
4. Removing sealant and joint covers
5. Removing doors, windows and wall panels
6. Labeling each reusable component
7. Supporting and removing the roof frame
8. Removing the columns
9. Lifting and packing the base frame
10. Replacing damaged fasteners and sealing materials
11. Preparing a new packing list
12. Transporting and reinstalling the building

Components should be dry and clean before packing to reduce moisture damage during storage.

Construction Camp Application

A large construction camp may use the same structural system for several building functions.

A typical configuration may include:

● Worker dormitories

● Management offices

● Meeting rooms

● Dining halls

● Kitchens

● Shower rooms

● Toilet blocks

● Laundry rooms

● First-aid rooms

● Security offices

● Storage buildings

● Recreation rooms

Using repeatable structural units can simplify purchasing, spare-parts management and installation training.

The same installation team can follow one standard procedure across several building types while the internal partitions and utility systems are customized for each function.

Mining and Remote-Site Camp

Mining and remote infrastructure projects often require accommodation far from established construction resources.

The pre-welded detachable system can be configured as:

● Single or double-occupancy bedrooms

● Supervisor accommodation

● Site offices

● Dining and kitchen buildings

● Medical rooms

● Sanitation blocks

● Equipment rooms

● Security buildings

When one project stage is completed, selected units can be dismantled and relocated to a new work area.

Mining, construction and remote-site accommodation are common applications across detachable container-house suppliers because the systems can be shipped as kits and combined into larger camp layouts.

Agricultural and Farm Projects

The units can also support:

● Seasonal worker housing

● Farm offices

● Dining rooms

● Equipment-control rooms

● Changing rooms

● Sanitation facilities

● Security buildings

● Temporary storage

A farm project can begin with a limited number of units and add further buildings during later operating seasons.

Emergency and Transitional Facilities

The detachable structure may be used for:

● Transitional accommodation

● Temporary classrooms

● Medical-support rooms

● Administration offices

● Sanitation buildings

● Distribution centres

Emergency projects should prioritize realistic installation time, simple layouts, local utility availability and clear component identification.

Horizontal and Vertical Combination

Individual units can be used independently or connected to create larger modular buildings.

Horizontal Combination

Units may be arranged:

● Side by side

● In rows

● Around courtyards

● Along covered walkways

● As connected office suites

● As larger dormitory buildings

Vertical Combination

Multi-storey arrangements may be possible when the lower frames, columns, connectors, stairs, corridors and foundations are designed for the required loads.

A multi-storey project is not created by placing ordinary standard units on top of each other without structural verification.

The project may require:

● Reinforced lower frames

● Thicker columns

● Vertical connectors

● Horizontal bracing

● External stairs

● Corridors

● Guardrails

● Foundation calculations

● Wind and seismic review

● Fire and escape planning

Related detachable systems are commonly combined horizontally and can be stacked when reinforced and engineered for the project.

Standard Structural and Material Reference

The current Huisheng high-end reference configuration includes:

These figures are based on the current website specification and should be checked against the latest factory production standard before publication.

Insulation Options

EPS Sandwich Panels

EPS is suitable for budget-controlled general accommodation, offices and mild or moderate climates.

Rock-Wool Sandwich Panels

Rock wool is commonly selected for projects placing greater emphasis on fire-material performance and sound absorption.

PU Sandwich Panels

PU panels can be considered when stronger thermal insulation is required within a limited panel thickness.

The panel material and thickness affect:

● Purchase cost

● Total cargo weight

● Packing volume

● Loading quantity

● Heating and cooling demand

● Fire-material requirements

The final panel system should be selected according to climate, intended use and local requirements.

Optional Project Configurations

Available customization may include:

● External dimensions

● Steel thickness

● Wall-panel material

● Wall-panel thickness

● Internal partitions

● Door and window quantity

● Double-glazed windows

● Electrical standard

● Bathroom

● Kitchen

● Laundry

● Furniture

● Air conditioning

● Water heater

● Exterior color

● Company branding

● Additional roof

● Canopy

● Corridor

● Staircase

● Guardrails

● Solar-power preparation

The current Huisheng page lists customization of dimensions, panels, doors, windows, electrical systems, plumbing, colors and finishes.

Quality Inspection Before Packing

Before the house is dismantled and packed, inspection can cover:

● Roof-frame dimensions

● Base-frame dimensions

● Weld appearance

● Column dimensions

● Connection-hole alignment

● Trial frame assembly

● Wall-panel dimensions

● Door operation

● Window operation

● Roof drainage

● Waterproof testing

● Electrical circuits

● Lighting and sockets

● Bathroom water supply

● Drainage

● Floor finish

● Accessory quantities

● Package labeling

A factory trial assembly or connection-template inspection helps confirm that the pre-welded roof and base frames match the columns and enclosure components before shipment.

What Should Be Included in the Quotation?

The quotation should clearly separate:

The page’s current From USD 1,100 should be clearly identified as a starting price for a defined basic configuration and trade term. It should not be presented as the complete delivered cost of a bathroom-equipped camp building. The existing page currently shows that starting figure without a complete inclusion summary near the price.

Important Project Considerations

Final loading capacity, installation time and repeat-use frequency cannot be determined from the product name alone.

They depend on:

● Frame specification

● Project layout

● Insulation

● Bathroom and plumbing

● Packing method

● Installation-team experience

● Foundation readiness

● Handling equipment

● Weather

● Storage conditions

Building approval, structural design, fire requirements, electrical standards and permitted occupancy also depend on the destination and intended use.

A standard factory configuration should not be described as automatically compliant in every country.

Frequently Asked Questions

1. What is pre-welded on this house?

The complete roof frame and base frame are welded in the factory. The columns, wall panels, doors, windows and accessories are assembled at the destination.

2. Is this the same as a fully detachable house?

No. A fully detachable house may divide the roof and base frames into individual beams. This model keeps the main roof and base frames pre-welded to reduce structural assembly work.

3. Is it the same as a fully assembled flat-pack house?

No. The complete three-dimensional house is not shipped as an assembled unit. Columns, walls, doors, windows and accessories remain detachable.

4. How many sets fit in one 40HQ container?

The final quantity depends on the frame, wall panels, bathroom, internal partitions, accessories, total weight and packing design. It should be confirmed through the approved bill of materials and loading drawing.

5. Why not advertise one fixed loading quantity?

Two orders using the same external house size can have different steel thicknesses, wall panels, bathrooms and additional components. These differences affect both cargo volume and weight.

6. What is included in one house kit?

A standard kit can include the roof frame, base frame, columns, wall panels, door, windows, floor materials, electrical components, drainage materials, fasteners, sealing materials and documents. Bathrooms and other upgrades should be clearly listed separately.

7. Are all components labeled?

For project orders, packages should be labeled by project, building, unit and component group so the installation team can identify materials efficiently.

8. How many workers are required?

A small trained structural team is normally required, with electricians and plumbers added according to the selected configuration. The final team size depends on project quantity and site conditions.

9. Is on-site welding required?

The standard structure is designed primarily for bolted and screwed installation. Special combinations or project-specific structural work may require additional engineering.

10. Can the house be dismantled and reused?

Yes, the modular components can be dismantled and relocated when their condition remains suitable. Fasteners, seals, waterproof tapes and damaged components should be inspected and replaced where necessary.

11. How many times can it be reused?

There is no responsible universal number. Reuse depends on handling, transportation, installation quality, storage, corrosion protection and maintenance.

12. Can it be used for worker camps?

Yes. Units can be configured as dormitories, offices, canteens, bathrooms, clinics, classrooms and other camp buildings.

13. Can several units be connected?

Yes. Units can be combined horizontally. Multi-storey combinations require reinforced structures, engineered connections, stairs, guardrails and suitable foundations.

14. What foundation is required?

A stable and level concrete or engineered support system is required. The correct design depends on soil, loads, climate and local regulations.

15. Are installation drawings provided?

The project package can include floor plans, elevations, component drawings, installation sequences, packing lists and video guidance.

16. Can an installation supervisor be provided?

Remote guidance or on-site supervision can be arranged according to the destination, project size and service agreement.

17. Is the bathroom included in the starting price?

It should not be assumed to be included unless the quotation specifically lists the sanitary fixtures, plumbing and bathroom panels.

18. Does the house automatically comply with local building rules?

No. Structural, fire, electrical, plumbing and occupancy requirements must be reviewed for the destination and intended use.