GSA Modular Containers

Smart management of your spaces

Build your office, living space, or business like a LEGO block… but in steel.

At Conteneur GSA, we transform containers into solid, practical, and genuinely stylish spaces. Whether it’s a job-site office, a habitable studio, a kiosk, or a retail space, our modular units are designed to be quick to install, durable, and perfectly suited to Canadian climate conditions.

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What is a modular container?

Real-life “LEGO blocks”

A modular container is a standard 18 ft x 8 ft base module designed like a LEGO block: it can be placed side by side, stacked, and assembled without welding to create larger spaces across one or multiple levels. Each unit is made from highly galvanized steel, insulated, and ready to receive all required systems (electrical, plumbing, heating, air conditioning, etc.).

Quick to install, modular, customizable, and adaptable, GSA modular containers offer an economical and eco-friendly alternative to traditional construction by reducing timelines and on-site labor.

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What we can build for you
Nearly endless possibilities

GSA modular units adapt to a wide range of projects, both temporary and permanent.

Construction site offices and corporate offices

Tiny homes, backyard studios, and temporary housing

Mobile retail spaces, festival kiosks, ticket booths

Portable washrooms and complete sanitary blocks

Secure storage spaces

Restaurants, cafés, bars, and take-out counters

Workshops, garages, laboratories, and technical facilities

Temporary medical centers, event spaces

If you can imagine it, we can build it.

Manufacturing & customization options

Build your modular unit, one choice at a time

Each project is configured to measure, from the structure to the finishes. Here is an overview of the standard options detailed in the guide.

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Roof

1.2 mm Corten steel roof welded to the roof frame (more robust)

Exterior colors

Gray is the only color currently available; other colors will be available soon

Insulation (floor, roof, walls)

Floor: 4 in mineral wool and 4 in polyurethane foam (minimum order of 50 units for polyurethane foam)

Floor

PVC 2 mm

Interior ceiling

PVC 9 mm

Interior walls

PVC finish

Wood finish for a warmer feel

Exterior walls

Cladding or panel finishes available to match your aesthetic and regulatory requirements

Doors

Steel door

Other models coming soon

Windows

Sliding 800 x 1,100 mm or 900 x 1,200 mm windows with PVC rolling shutters

Special openings

Ask your modular expert

Electrical systems (Canadian standard)

Exterior outlet 460 v 32a IP44

LED or neon lighting 110 v CTA: Configure my GSA modular unit

The modular studio: compact, comfortable living, ready to plug in

The GSA modular studio is a prefabricated housing module in the standard 18 ft format, designed to offer a comfortable, functional, and fully customizable living space. It is the ideal solution for temporary housing, construction camp housing, student housing, backyard studios, or compact hospitality projects.

Highly galvanized steel structure, prepainted sandwich panels

Advanced thermal insulation 50–100 mm (walls, ceiling, floor) in mineral wool, polyurethane, or polystyrene

Floor coverings: vinyl, parquet, ceramic tile, or linoleum

Aluminum/PVC joinery with tempered glass, rolling shutters, blinds, or bars as needed

Designed for air conditioning, utilities, integrated furniture, and home automation if desired

Roof in sheet metal or insulated sandwich panels, suited to very rainy areas

Recommended foundations: concrete blocks 40 x 40 x 40 cm (8 blocks per 6 m module)

Assembly/disassembly takes just a few hours thanks to pre-cut and pre-painted panels, with the option to side-by-side or stack modules to create larger configurations. Transport is optimized through special packaging, with reinforced options for frequent relocation.

In kit form: all elements for efficient on-site assembly

Preassembled: container delivered ready to use, to be placed and connected

Possible assistance from GSA technicians (supervision or turnkey service)

Economical: lower initial and maintenance costs than traditional construction

Flexible: modular, movable, reusable, or resellable

Durable: materials resistant to weather conditions

Comfortable: excellent thermal and acoustic insulation, with essential equipment integrable

Customizable: tailored interior/exterior layout and advanced technical options

Temporary or permanent housing

Construction camp housing for workers

Student housing or guest lodging

Backyard studio, home office, guest space

Compact commercial or service space (hair salon, wellness, massage, etc.)

Workshop, laboratory, training room

Meeting room, games room, wellness room

Secure storage with integrated habitable or technical area

Your temporary or durable modular office, custom-built

GSA modular offices are formed from prefabricated 18 ft x 8 ft containers, arranged side by side and stacked to create true office buildings across one or multiple levels. They are designed to provide comfort, aesthetics, thermal and acoustic performance, while remaining easy to transport and quick to install.

Standard 18 ft modules configurable like “Lego pieces”

Side-by-side and stacked layouts to create simple or complex spaces

Removable, lightweight interior partitions to adapt the space to your organization

Ability to integrate meeting rooms, reception areas, open spaces, enclosed offices, washrooms, etc.

Interior/exterior walls in insulated sandwich panels of 50 to 200 mm (mineral wool or polyurethane)

Thermal insulation to reduce heating costs and improve comfort

Acoustic insulation for a calm work environment

Prefabricated and precut panels to accelerate assembly

Kit construction: preassembled floors and ceilings, precut walls

Office can be dismantled and moved to another site if needed

Up to 6 modules of 18 ft can be loaded in a single truck, reducing transport costs

Easy transport and installation, even on temporary sites

Significant time savings compared to masonry construction

Cost of a modular office around 50% lower than a traditional office for comparable dimensions

Weather resistance

Construction sites (site offices)

Events and trade shows (organization offices, ticket booths)

Educational facilities (modular classrooms, administrative offices)

Corporate offices (temporary or permanent extensions)

Infrastructure projects (roads, bridges, tunnels)

Temporary medical centers

Call centers and industrial sites

Emergency reception centers and temporary crisis installations

Factors affecting price

Transparency on what drives cost

The price of a modular container (studio, office, or other) depends on several factors detailed in the GSA guide.

Dimensions and design

Dimensions and design (standard 18 ft or assembly of several modules)

Level of customization and modularity

Level of customization and modularity (side-by-side, stacking, extensions)

Exterior finishes

Exterior finishes (colors, cladding, roofing, special glazing)

Joinery

Joinery (types of doors and windows, glazed openings, solar protection, bars, shutters)

Technical systems

Technical systems (electrical, plumbing, heating/air conditioning)

Transport and delivery

Transport and delivery (distance, site access, transport method)

Installation

Installation (earthworks, foundations, connections)

Labor

Labor (turnkey vs supervision)

Standards, permits, and local regulations

Selected materials and level of aesthetic customization CTA: Get a price for my project

We offer financing for shipping container purchases!

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Why choose GSA Modular?

An experienced team, a fully controlled process from A to Z

Experienced manufacturer

with recognized expertise in maritime and modular containers, ISO-certified.

Design, fabrication, and assembly

carried out in the factory, with strict quality control.

Delivered solutions

in kit or preassembled, ready to be installed quickly on your site.

Competitive pricing

thanks to transport, installation, and material optimization.

Human service:

support, technical advice, after-sales service, and intensive customization of each project.

FAQ

GSA Modular FAQs

Can a modular unit be moved?

Yes. Modular studios and offices are designed to be moved: disassembly and transport can be carried out by specialized professionals, with rapid reinstallation on a new site.

Is it equipped with appliances?

No appliances are included with our modular units.

What are the installation conditions?

A stable, level ground surface, foundations (often concrete blocks), and access to services (water, electricity, sewage) are required. Permits depend on your municipality’s requirements.

Is it safe?

Yes. GSA modular units are built from robust galvanized steel, designed to withstand weather conditions, with reinforced lock options available.

Can modular offices be moved?

Yes, they can be dismantled or moved according to the needs of the site or business, making them a highly flexible solution.

Do I need a building permit?

In most cases, yes, or a work declaration depending on size and local regulations. GSA can guide you on the basics, but it is essential to confirm with your municipality.

We purchased two containers from Conteneur GSA and I highly recommend them. Fast and on-time delivery at unbeatable prices.

Martin Labadie

Excellent service, fast, efficient, courteous, everything is as per the quotes, quick delivery, easy to schedule, efficient driver, on time, courteous... Very very satisfied

Benoit Thivierge

Very good service. Received the container and placed it in the desired location, despite the difficult location. Afterwards, we added a rolling door, and it is super well installed. Well done!

Eve-Marie Bourque

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