Shipping container architecture is a form of architecture that uses steel intermodal containers (shipping containers) as the main structural element. It is also referred to as cargotecture or arkitainer, portmanteau words formed from "cargo" and "architecture". This form of architecture is often associated with the tiny-house movement as well as the sustainable living movement.
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The use of containers as building materials has been growing in popularity due to their strength, wide availability, low cost, and eco-friendliness.[1][2]
Due to their shape and material, shipping containers have the ability to be customized in many different ways and can be modified to fit various purposes. Standardized dimensions and various interlocking mechanisms make these containers modular, allowing them to be easily combined into larger structures that follow modular design. This also simplifies any extensions to the structure as new containers can easily be added on to create larger structures. When empty, shipping containers can be stacked up to 12 units high.
Because shipping containers are designed to be stacked in high columns and to carry heavy loads, they are also strong and durable. They are designed to resist harsh environments, such as those on ocean-going vessels. Shipping containers conform to standard shipping sizes, which makes pre-fabricated modules easily transportable by ship, truck, or rail.
Shipping container construction is still less expensive than conventional construction, despite metal fabrication and welding being considered specialized labor (which usually increases construction costs). Unlike wood-frame construction, attachments must be welded or drilled to the outer skin, which is more time-consuming, and requires different job site equipment.
As a result of their widespread use, new and used shipping containers are available globally. This availability makes building tiny or container houses more affordable. Depending on the desired specifications and materials used, a container home will often cost less compared to a traditional house[3]
Shipping container construction requires fewer resources, meaning the quantity of traditional building materials needed (e.g. bricks and cement) are reduced. When upcycling shipping containers, thousands of kilograms of steel are saved. For example, a 12-metre-long (39 ft) shipping container weighs over 3,500 kilograms (7,700 lb).
Containers used for human occupancy in an environment with extreme temperature variations will normally have to be better insulated than most brick, block, or wood structures because steel conducts heat very well. Humidity can also affect steel structures, so when moist interior air condenses against the steel, it becomes humid and forms rust if the steel is not sealed and insulated.
While in service, containers may be damaged by friction, handling collisions, and the force of heavy loads overhead during ship transits. Additionally, although the two ends of a container are extremely strong, the roof is not. In the case of a 20-foot-long (6.1 m) container, the roof is built and tested only to withstand a 300 kg (660 lb) load, applied to an area of 61 cm by 30.5 cm (2 ft by 1 ft) in the weakest part of the roof.[4] Companies inspect containers, and condemn them if they present cracked welds, twisted frames, or pin holes, among other faults.
Shipping containers possess the capacity to be organized into modular arrangements, thereby creating expansive structures. Nevertheless, deviating from the established standard dimensions, typically 20 feet (6.1 m) or 40 feet (12 m) in length, can engender inefficiencies in terms of both temporal and financial resources. Containers surpassing the 40 ft (12 m) length threshold may encounter challenges during navigation within residential vicinities.
The transportation and construction of shipping container structures can be expensive due to size and weight, and often require the use of cranes or forklifts. This is in contrast to more traditional construction materials like brick or lumber, which can be handled manually and used for construction even at elevated heights.
Obtaining building permits for shipping container homes can be troublesome in regions where municipalities are not familiar with shipping container architecture, because the use of steel for construction is usually for industrial rather than residential structures. In the United States, some shipping container homes have been built outside of various city zoning areas, where no building permits are required.
To meet Australian government shipping quarantine requirements, most container floors are treated with insecticides containing copper (23–25%), chromium (38–45%) and arsenic (30–37%) when manufactured. Chromium and arsenic are known carcinogens. If shipping containers are repurposed for human habitation, these floors should be safely removed, disposed, and replaced. Because shipping containers can carry a wide variety of industrial cargo, spillages or contamination may also occur inside the container, and will have to be cleaned before habitation. Before human habitation, ideally all internal surfaces should be abrasive blasted to bare metal, and re-painted with a non-toxic paint system. Solvents released from paint, and sealants used in manufacture, might also be harmful to human health.
The use, size, location and appearance of structures based on shipping containers vary widely.
When futurist Stewart Brand needed a place to assemble the material he would use to write How Buildings Learn, he converted a shipping container into an office space in the early s. The conversion process is described in How Buildings Learn itself.
In , the firm Urban Space Management completed a project called Container City I in the Trinity Buoy Wharf area of London. The firm has gone on to complete additional container-based building projects, with more underway. In , the Dutch company Tempohousing finished, in Amsterdam, the biggest container village in the world: 1,000 student homes from modified shipping containers from China.[5]
In , standard ISO shipping containers began to be modified for use as stand-alone on-site wastewater treatment plants. This use of containers creates a cost-effective, modular, and customizable solution to on-site wastewater treatment, eliminating the need for construction of a separate building to house the treatment system.[6]
In , Southern California Architect Peter DeMaria designed the first two-story shipping container home in the U.S., as an approved structural system under the strict guidelines of the nationally recognized Uniform Building Code (UBC). Named the Redondo Beach House, it inspired the creation of Logical Homes, a cargo container–based pre-fabricated home company. In , Logical Homes created its flagship project, the Aegean, for the Computer Electronics Show in Las Vegas, Nevada.
In , Village Underground constructed a series of not-for-profit artists' workspaces in Shoreditch, London. Developing the concept further, Auro Foxcroft constructed recycled shipping container architecture that incorporated retired London Underground carriages.
In , entrepreneur Brian McCarthy developed prototypes of shipping container housing for maquiladora workers in Mexico.[7]
Hybrid Cargotecture Development (HCD), headquartered in Sri Lanka, is a leader in the field of containerized construction. Known for its eco-friendly approach, the company specializes in transforming upcycled shipping containers into luxury homes, chalets, offices, and resorts. With a focus on innovation and sustainability, HCD has pioneered hybrid designs that combine the durability of shipping containers with modern, high-end finishes.
HCD has completed several notable projects within Sri Lanka, including containerized housing solutions for resorts and eco-tourism initiatives. The company has also expanded internationally, exporting container homes and offices to markets in Australia, the USA, Canada, and Germany. These projects highlight the versatility and global appeal of containerized housing, particularly for sustainable and fast-construction solutions.
HCD continues to contribute to the container home industry by addressing housing and commercial needs while promoting environmental sustainability through the use of repurposed materials.
In , German architect and production designer Stefan Beese used six 12-metre-long (39 ft) shipping containers to create a large viewing deck and VIP lounge area for the Voodoo Music Experience, New Orleans, as a substitute for typical grand stand scaffolding. The containers double as storage space for other festival components throughout the year. The two top containers are cantilevered 2.7 metres (8.9 ft) on each side, creating two balconies that are prime viewing locations. Each container was perforated with cutouts spelling the word "VOODOO".
In the United Kingdom, walls of containers filled with sand have been used as large sandbags to protect against flying debris from exploding ceramic insulators in electricity substations.
In October , two barges owned by Google with superstructures made out of shipping containers received media attention amid speculation about their purpose.[8]
See also: Container parkEmpty shipping containers are commonly used as market stalls and warehouses in the countries of the former USSR.
The biggest shopping mall or organized market in Europe is made up of alleys formed by stacked containers, on 69 hectares (170 acres) of land, between the airport and the central part of Odesa, Ukraine. Informally named "Tolchok", and officially known as the Seventh-Kilometer Market, it has 16,000 vendors and employs 1,200 security guards and maintenance workers.
In Central Asia, the Dordoy Bazaar in Bishkek, Kyrgyzstan is almost entirely composed of double-stacked containers. It is popular with travelers coming from Kazakhstan and Russia for the cheap prices and plethora of knock off designers.
In , the Cashel Mall in Christchurch, New Zealand reopened in a series of shipping containers, months after it had been destroyed in the earthquake that devastated the city's central business district.[9] Starbucks Coffee has also built a store using shipping containers.[10] A pop-up shopping mall called Boxpark was also created in Shoreditch, London, in , followed by other locations in the Greater London area.[11] A pop-up shopping mall, Common Ground, was created in Seoul, South Korea in .[12]
Shipping containers have also been used as:
The abundance and relative cheapness of these containers during the last decade comes from the deficit in manufactured goods coming from North America in the last two decades. These manufactured goods come to North America from Asia and, to a lesser extent, Europe, in containers that often have to be shipped back empty, or "deadhead", at considerable expense. It is often cheaper to buy new containers in Asia than to ship old ones back. Therefore, new applications are sought for the used containers that have reached their North American destination.
Containers have been utilized by architects and individuals to build diverse structures, including homes, offices, apartments, schools, dormitories, artists studios, and emergency shelters. Additionally, containers have found use as swimming pools and temporary secure spaces on construction sites and other venues.
CONEX containers were developed by Malcom McLean to standardize the intermodal shipping unit. CONEX containers may or may not meet the requirements of local building codes. As they are not field erected, a registered engineer or architect must verify that the containers comply with the structural requirements of the building code. The ICC[25] code was amended to address CONEX containers.
Phillip C. Clark filed for a United States patent on November 23, , described as "Method for converting one or more steel shipping containers into a habitable building at a building site and the product thereof". This patent was granted August 8, as patent . The patent documentation shows what are possibly the earliest recorded plans for constructing shipping container housing and shelters by laying out some very basic architectural concepts. Regardless, the patent may not have represented novel invention at its time of filing. Paul Sawyers previously described extensive shipping container buildings used on the set of the film Space Rage Breakout on Prison Planet.
Other examples of earlier container architecture concepts include a report entitled "Shipping Containers as Structural Systems",[26] investigating the feasibility of using 20-foot (6.1 m) shipping containers as structural elements by the US military.
During the Gulf War, containers saw considerable nonstandard uses, not only as makeshift shelters, but also for housing of US soldiers. The shipping containers were equipped with air conditioning units and provided shelter as well as protection from artillery shelling.
It has been rumored that some shipping containers were used for transportation of Iraqi prisoners of war, with holes cut in the containers to allow for ventilation. Containers continue to be used for military shelters, often additionally fortified by adding sandbags to the side walls, to protect against weapons such as rocket-propelled grenades ("RPGs").
Shipping container architecture has inspired the reality television series Containables (DIY) and Container Homes (HGTV), in addition to being featured in episodes of Grand Designs (Channel 4) and Amazing Interiors (Netflix).
Post updated on Sept 5,
A shipping container is a large box made of steel that is traditionally used for storage and to transport goods long distances. Shipping containers are constructed from Corten steel (or weathering steel) and come in a few different sizes, but the most common sizes of a standard shipping container are 8’x20’ or 8’x40’. They are built to withstand inclement weather and abuse during transport by ocean, rail or land, and usually have a shipping lifespan of 25 years.
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A shipping container home is exactly what it sounds like: a living space constructed from a standard shipping container or containers, sometimes involving the welding together of more than one container to make a structure wider or taller, that is modified to have most of the things you’d find in a traditional house.
It’s likely you’ve heard a lot about people who are choosing to abandon traditional, larger, wood frame homes for “tiny homes” that are more affordable to build and maintain, more environmentally conscious and, ultimately, offer a simpler, more minimalist way of living. Right along with the tiny home movement comes container homes, which continue to gain popularity for many of the same reasons.
While BigSteelBox offers shipping container modifications such as adding electrical options like heat, lights and cooling, as well as insulation, windows and doors, we do not build or sell container homes. However, we do sell new and used containers to those planning to outsource the work or complete the construction themselves.
If you’re considering a build like this, but still on the fence about it, read on for some pros and cons of shipping container homes.
As mentioned above, shipping containers are made of tough, corrugated Corten steel, which can withstand extreme weather conditions and constant movement. Thanks to its strong steel frame, walls, ceiling and floor, it won’t bend or shift under the weight of its contents. Fun Fact: Some bridges are made from Corten steel!
Shipping containers are made to protect belongings from the elements when being shipped by sea, rail and land. As such, building a home inside of a shipping container (or containers) would provide the same structural and security benefits.
Shipping container homes can be completed much more quickly than the average new build home construction with a wood or concrete frame. This is true for a few reasons, but mainly it’s because container houses are built on a smaller scale than most other homes. Plus, the container structure itself (the frame) has already been manufactured and only needs modifications to make it livable.
Another pro to shipping container housing is that they’re portable! And because of their steel frame, you don’t have to worry about it bending or shifting in transport.
Depending on their size, container homes can be moved and transported by either a forklift for individual containers under 10,000lbs, or crane for larger container structures. Assuming the container house has electricity, water and septic, there will need to be proper disconnection and reconnection to those sources before and after moving it, but the structure itself is usually mobile and you could even move it to a different city if you wanted to.
According to Altus Group’s Canadian Cost Guide, building a traditional single-family home in Canada ranges from $100 to $275 per square foot, depending on where you live.
“Just like buying a house, Vancouver and Toronto are the most expensive cities in which to build a new home in Canada. In Vancouver, the process costs between $150 and $275 per square foot, while in the Greater Toronto Area it runs from $165 to $260 per square foot. Calgary and Edmonton, where prices range from $125 to $200 per square foot, are cheaper options.” Zoe Demarco, dailyhive.com
In addition to location, costs will also differ based on the types of material and finishes you choose to use, but on average, the cost to build a new 2,500 sq ft wood frame home in Canada, excluding the cost of the land/lot and other requirements (i.e. electrical and plumbing connections in a city or rural area), can range between $250,000 – $680,000.
Building a shipping container home is cheaper based on a few factors. Obviously, they’re built on a much smaller scale and you’ll need less materials to complete the interior, so the materials and labour involved will cost less.
The structure or frame of a container home is already there, so you’re actually modifying it versus building from scratch. As such, the main factor to consider when pricing out the “shell” of your container home is the number of containers you need to purchase for the home, and modification costs if more than one container will need to be cut and welded together.
To give you an idea of what it costs to buy a new 20′ shipping container in Canada, below is some pricing for reference. It’s important to note that pricing varies from city to city, and will also be impacted by availability, size and condition*:
*Prices above are excluding taxes, subject to change without notice, and do not include delivery.
After the cost of the container(s), the remaining work will also depend on where you live and the finishings and features you want. Smaller, more basic container homes can range between $25,000 to $40,000, while larger homes built with multiple shipping containers and more customized features can range in price from $100,000 to $175,000.
When constructing a container home, you aren’t limited by traditional building methods or designs. Shipping containers can be used in extremely unique and creative ways! A lot of these homes have a modern, industrial feel once they’re completed, which is popular within the “minimalism” design style.
While you’ll have to find ways to make the most out of a smaller space on the inside of your container home, this is actually another opportunity to get creative. Just be sure to do some research on the latest space saving designs and layouts.
To maximize the use of your space, choosing furniture that can be tucked away or used for more than one purpose is ideal when decorating a tiny or container home. For example, a wall bed (often called a Murphy bed) may be a good choice as there are styles available that allow it to double as shelving or a desk/workspace when it’s stowed away. There is also plenty of furniture and designs that have built-in storage, which that can be handy in a container home while also being stylish.
Wall bed photo courtesy of visualhunt.com.
On the other side of the coin, there are also challenges and downsides to building a shipping container home. Here are a few of the cons you’ll want to consider.
The COVID-19 pandemic caused many challenges for manufacturing and shipping sectors all over the world. Many factories were shut down and stopped production for long periods of time, which affected the supply of all sorts of goods. In addition, many shipping lines were closed or slowed significantly. Both of these factors directly affected the ability to produce new shipping containers in China and move them to other countries, like Canada.
As such, shipping containers have been in low supply and high demand since late , and while the industry is slowly recovering, it continues to affect their availability and pricing. Because most container companies in Canada focus on renting containers for moving and storage purposes or transporting goods, fewer have been available for purchase.
When building a container home it’s best to use “new” or “one trip” containers so that they will be in better condition and last longer. Due to the supply shortage and the limited ability to bring a new container from overseas, purchasing new shipping containers can be more expensive and take longer than usual.
Although a shipping container is a great option for temporary or long term storage, it is a very small space for a person (or people) to live in.
The average 8’x20’ container gives you 160 square feet of space, whereas an 8’x40’ container offers about 320 square feet of living space. There is the option to combine multiple containers to create a bigger space, but doing so will increase costs and time because there will be work needed to retro-fit them into one unit.
So, the main takeaway here is that you’ll need to think things through and be realistic about your ability to live in such a small space.
A shipping container can get extremely warm during the summer months if they aren’t well insulated and equipped with proper venting and cooling systems. Because containers are made from steel, without insulation they will absorb heat and warm the interior quite quickly.
This means you will need to add some type of insulation to your container, as well as a wall finish, vents and ideally a built-in air conditioner. If done properly, this can be done efficiently and look great in the end, but will take a bit of space away from your already limited square footage.
There is the possibility of health hazards associated with living in a shipping container home, but this con is more likely to be an issue when older, second hand containers are used. This is because there’s the possibility that chemicals were used to treat the wooden flooring, or the paint used to protect it from seawater during transport may release toxins.
So, while using new containers may cost more but be safer, some people want to use second hand containers to leave a smaller environment footprint.
“If you are using the new containers to build your home, then you need not worry about these (health) concerns as you can always dictate to your manufacturer, not to treat the floors or to coat the containers with harmful chemicals. However, using new shipping containers to build your home is sure to increase the cost and it also defeats the environment-friendly credits that you would have gained by using recycled shipping containers.” Susan Tora, Customer Success Manager at InnoDez
Using spray foam insulation, non-breathable underlay and flooring, adding vents and exhaust fans to help with airflow will help reduce the health risks, however, it’s still important to research this topic and discuss it with your contractor.
Because shipping container homes are a fairly new trend, most cities don’t have specific regulations in place for them. This may result in the zoning and permit process taking longer than usual, or even being denied.
In addition, each province will have its own building codes and requirements that must be met for it to be approved. This can include items like emergency access, alarms, energy efficiency and plumbing. We recommend contacting your local city planning office for more information about building codes, zoning restrictions, and permitting requirements for container homes, or find a contractor with experience in this area.
The fact of the matter is that shipping containers are not designed or built as living quarters so there are bound to be construction challenges. Unlike wood frame structures where a home is built from the ground up and leaving spaces for doors, windows, plumbing, etc., are part of the process, modifying a shipping container requires openings to be cut from steel walls, and you’ll likely need to get creative when it comes to putting in a bathroom. And, every “extra” you add will take away more precious space that is already scarce.
Also keep in mind that steel can rust if it’s exposed to certain elements and not properly protected. According to containerhomehub.com, rust occurs on shipping containers when they are exposed to moisture and oxygen, which leads to oxidation (the breakdown of iron-based metals). Rust can weaken the structure of a shipping container home and lead to additional problems, such as leaks and water damage.
“When left unchecked, rust can create serious problems for your container home. It can weaken the containers, which increases the risk of structural damage during a storm. Rust may also lead to gaps that allow moisture to reach other areas, causing water damage and leaks inside your home.” Gail Rose, containerhomehub.com
To prevent rust, shipping containers must be coated with a protective layer of paint or an acrylic finish to prevent moisture from reaching the steel underneath. You’ll also want to ensure you especially protect the roof from pooling water, install an effective gutter system, and repair any areas showing signs of rust as soon as possible.
Depending on where you live, there are likely a few companies that sell new and used shipping containers, including BigSteelBox. There are even some that will build your home for you and deliver it to your location.
While BigSteelBox does not build container homes, we can complete a variety of modifications to your purchased container before we deliver it to you. Check out our Modifications section to learn more about those options.
Contact us to discuss your requirements of Container House. Our experienced sales team can help you identify the options that best suit your needs.