Multi-Storey Modular Block
Apartment, office and accommodation blocks of two to five storeys, built as engineered modules with the services already roughed in and the connections designed for the loads at your site.
What It Is and What It Does
A multi-storey modular block is a building assembled from engineered modules rather than poured on site. The structure, the connections between modules and the load path down to the foundation are designed together, which is what allows two to five storeys.
Modules arrive substantially finished, with mechanical, electrical and plumbing services roughed in at the factory. Site work is craning, connecting and completing — not building.
We have delivered this system as a 3,000 m² two-storey complex for UMMO in El Salvador and as two-storey office and accommodation buildings in Thailand, both erected by local crews working from our drawings and bolt schedules.

What You Get From It
Programme moves off the site
Most of the build happens in Weifang while foundations and services are going in at the destination.
Two to five storeys
Engineered connections carry the load down through the stack, so the system is not limited to single-storey buildings.
Services already in
MEP roughed in at the factory means fewer trades sequencing around each other on site.
Weather stops mattering
Finishing work happens indoors, so a wet season does not decide the handover date.
The Situations This Product Answers
Fixed opening dates
Schools, offices and accommodation that must open on a date cannot absorb weather delays. Factory work is not weather dependent.
Thin local trade capacity
Where skilled trades are scarce or expensive, moving the finishing into the factory removes the bottleneck.
Sites that cannot take a long build
Urban and operational sites benefit from a short, predictable erection window.
Repeatable building types
Programmes rolling out the same building across several sites get the benefit of one engineered design, many times.
Buyers Who Specify This Product
Developers
Apartment and office blocks where programme drives the return.
Government programmes
Repeatable building types rolled out across several sites.
Mining and energy owners
Permanent administration and accommodation buildings at site.
Contractors
Buildings that have to be handed over inside a fixed construction window.
Where It Is Used
Apartment blocks
Residential floors stacked with engineered inter-module connections.
Office buildings
Open floor plates formed by combining modules.
Permanent site accommodation
Long-term housing at mines and plants.
Mixed-use blocks
Ground-floor amenity with residential or office floors above.



How It Is Built
Engineered connections
Inter-module connections and the load path to foundation are designed for your wind and seismic loads.
Volumetric or panelised
Delivered as whole modules or as panels, depending on your crane and your freight budget.
Factory MEP
Mechanical, electrical and plumbing services roughed in before shipping.
Substantially finished
Internal finishes largely complete on arrival.
Numbered kit
Members and panels marked to the erection drawings for sequence assembly.
Specification Table
Values not stated are confirmed on the approved project drawing rather than assumed.
| Storeys | 2 to 5 with engineered connections |
|---|---|
| Delivery format | Volumetric modules or panelised kit |
| Services | MEP roughed in at the factory |
| Structure | Light steel frame with engineered inter-module connections |
| Engineered to | AS/NZS, EN (CE) and your specified wind and seismic loads |
| Lead time | 35 to 60 days for custom projects, depending on engineering and volume |
| Incoterms | FOB, CIF or DAP |
| Floor-to-floor height | TBC — confirmed on the project drawing |
| Floor loading | TBC — confirmed on the project drawing |
| Fire rating | TBC — confirmed on the project drawing |
| Acoustic separation between modules | TBC — confirmed on the project drawing |
What It Is Made From
Frame
Light steel structural frame sized to the engineered loads.
Floors
Engineered floor build-up specified per project.
Envelope
Insulated panel or specified facade build-up.
Services
MEP components installed to the approved services drawings.
How It Is Made
Engineering
Structural drawings, load calculations and stamped reports prepared for your jurisdiction.
Frame fabrication
CNC cutting, robot welding and galvanising or priming.
Module assembly
Floors, walls and roof assembled and squared.
MEP rough-in
Services installed and tested.
Finishes
Internal finishes completed to the approved specification.
Mark, pack and load
Members marked to the erection drawings and loaded to the container plan with photo report.
Three-Stage Quality Control
- Material certificates checked against the approved specification
- Frame geometry and weld inspection before galvanising
- Services function test after rough-in
- Final finish inspection and photo report before sealing
Standards and Documentation
- Structural drawings, load calculations and stamped reports for your jurisdiction
- Engineered to AS/NZS and EN (CE) where specified
- Material certificates and load-test reports supplied per order
Customisation Options
- Storey count and floor plate layout
- Volumetric or panelised delivery
- Facade treatment and external finish
- Services standard for the destination
- Fire and acoustic performance to local code
- Foundation interface detailing
How It Compares
How the modular block compares with the alternatives on a multi-storey job.
| Multi-storey modular block | Panelised building kit | Cast in place | |
|---|---|---|---|
| Site programme | Shortest | Short | Longest |
| Freight volume | Highest | Lower | Local materials |
| Crane requirement | Highest | Moderate | Varies |
| Finish on arrival | Substantially finished | Shell and structure | None |
| Weather exposure during build | Minimal | Moderate | High |
Getting It Right on Site
Confirm crane capacity first
Volumetric modules are sized by what your site can lift. Tell us the available plant with the enquiry.
Get the foundation interface early
The load path from the module stack to the foundation is engineered work — it should not wait for the units to arrive.
Sequence from the marked drawings
Members and panels are marked; erecting out of sequence is the most common cause of rework.
Plan the services connection
MEP is roughed in, but the connection to site services still needs designing into the programme.
Products For This Requirement

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Two-Storey Prefab Buildings
Two-storey prefab buildings assembled from a pre-engineered steel frame and insulated panels — offices and accommodation raised …
Read the projectMulti-Storey Modular Block FAQ
What buyers ask before placing an order for this product.
How many storeys can a modular block reach?
Two to five storeys with engineered connections. The exact limit for your project depends on the wind and seismic loads at the site, which our engineers calculate before fabrication.
What is the difference between volumetric and panelised delivery?
Volumetric modules arrive as whole rooms and need more freight volume and a larger crane. Panelised kits ship flatter and cost less to freight, but need more assembly on site. Both are supplied from the same engineering.
Is the plumbing and wiring installed before shipping?
Mechanical, electrical and plumbing services are roughed in at the factory. Final connection to site services happens during erection.
What lead time should we plan for?
Custom steel structures and building projects run 35 to 60 days depending on engineering and volume.
Can you work to our architect's drawings?
Yes. Send the drawings you have and our engineers return a prefab version with the connections, load calculations and packing detailed for your destination.
Get a Price for the Multi-Storey Modular Block
Send quantity, destination port and any code requirements — drawings, a spec sheet and a fixed price come back.

