Once a fringe concept, shipping container homes have solidified their place of interest in the mainstream for being durable, versatile, and aesthetically-interesting shelters for seasonal and full-time living.
No longer just for transporting goods from port to port, shipping containers—also called intermodal containers and high cube containers—can be successfully converted into everything from tiny homes and cozy cabins to multi-level compounds.
Interested in the possibilities and realities of container home living? This deep dive guide is for container-curious folks who want to know more about living life inside the box. In this expert-driven article, we share everything you need to know about custom container living, including pro tips on buying shipping containers and how to save some cash during your build process. So read on and dig in!
First things first, a container home is a small living space converted from one or more, new or repurposed shipping containers into a custom modern home. Since a standard high cube shipping container is typically 20 feet by 8 feet or 40 feet by 8 feet, shipping container homes have a minimum 160 or 320 square foot floor plan to work with, though depending on how many you stack together you can achieve considerable square footage quite easily.
Unlike traditional housing and other types of popular alternative living spaces like prefab or tiny houses, container dwellings have the added benefit of being easily scalable. And of course, the industrial aesthetic is truly unique, especially when set in a natural setting.
Built of durable, weather-resistant steel that’s made to take a beating during international travel, shipping containers are designed purely for function. As mentioned, modularity allows you to stack more than one high cube container to create a larger floor plan and overall living space within the scope of a larger container home design. Containers also have standard dimensions, which can make designing a home more straightforward.
Another advantage is price (more on this below). Shipping containers are relatively inexpensive with an average price of between $1,500 and $5,000 depending on size and whether it's new or used, making them much cheaper to build with than lumber and other building materials for a traditional house. A recycled shipping container is also an eco-friendly option because it utilizes existing materials rather than new.
Pro tip: aim to buy your container(s) in November or December, says Devon Loerop, owner and builder of The Pacific Bin, which in just one year has become the most followed home on Instagram. During the holidays there is usually a surplus of containers in North America, making it easier to find a deal and save money when buying used containers.
In the same vein as the increasingly popular Accessory Dwelling Unit (ADU), building a shipping container house is another way to utilize alternative methods to create more livable space—be it a guest house, vacation home, or even a workspace. By design, container homes are a fairly low maintenance and even transportable home that can be a great investment for the DIY-minded homeowner.
Like any dwelling, there are pros and cons here too, whether you’re building and buying. One of the main disadvantages of shipping container homes is insulation and temperature control. Steel is an excellent conductor of heat, which means that without proper foam insulation, shipping container homes can become very hot in the summer and very cold in the winter. Insulating a shipping container effectively can be a challenge, and it often requires adding insulation to both the interior and exterior, which can increase construction costs and reduce interior space. More on this further below.
Another common disadvantage of building with shipping containers is navigating building code and zoning challenges. Depending on your location, there may be strict building codes and zoning regulations that govern the use of shipping containers as homes—or even disallow them. In many instances building regulations have been established decades before the advent of innovative building practices like prefabrication, so it's not uncommon to find local regulations (and town committees, code enforcers, and building permit issuers) to be rather outdated and uncompromising. As such, obtaining the necessary permits and approvals can be a complex and time-consuming process—you may need to seek a number of variances in order to be granted a certificate of occupancy (CO).
For these same reasons, finding home insurance and/or construction loans by conventional banks may be tough for shipping container home owners and builders, too. Or it all can be super simple. It all depends on where you want to build.
In terms of design limitations, you can stack multiple shipping containers to create a house, but the containers themselves are not endlessly customizable. Picking your living room, sleeping quarters, door locations, etc is easy, but unfortunately heavy modification can reduce the structural integrity of a container, so keep in mind you will have limited layout options when designing your dream container home.
From turnkey properties to customized builds, shipping container homes come in all shapes and sizes. There isn't just one way to convert these steel cubes into an inviting space—there are two: purchase a prefab container home or DIY.
A prefabricated (prefab) container house is built off-site by a qualified manufacturer and arrives ready-made. The obvious benefit is owning an almost move-in ready home (you'll still have to take care of the land, foundation, and connect utilities) which eliminates nearly all of the heavy lifting and construction.
The major downside to this is having less freedom to choose key design elements such as the floor plan, fixtures, and finishings. However, the trade-off is a professionally built habitable structure. And it's worth mentioning that some prefab container home manufacturers can also assist buyers with the finer points of the area's building codes, zoning laws, and permit requirements, which may be factor into your final decision.
The DIY route is the only way to get everything on your list and have complete control in the building and design process. But this also puts all of the responsibility on the homeowner turned builder, designer, and project manager. Researching floor plans, sourcing and installing all of the materials, and selecting every last detail of the home down to the "studs" takes time. And be prepared to hire professionals for specialized jobs like structural reinforcements, plumbing, and electricity.
Shipping containers are designed to stack corner to corner, like you see on ships and in ports. If you want to stack containers in an unconventional way, or cut out big windows and doorways, it's important to note additional budget and work will be required. “If you're building a one-story container home, it's really a breeze. But the second you go up a floor, just know there's going be a lot of added costs and added structural reinforcement needed, especially if you're stacking in the non-conventional way,” explains Washington State-based builder Devon Loerop.
“When you turn containers 90 degrees and they're not stacked on the corners, and that's when you have to look at some serious structural reinforcement. It makes for a really cool design, but it's going be a bit of a headache. So you really want to do your due diligence and dive into understanding structural steel, what it's going to take to make your home 100% rock solid, and how that is going to affect the inside of your design.”
Want to build your own Pacific Bin? Loerop sells complete construction plans. Use code "FM20" to save 20% off.
Metal is inherently a bad insulator so condensation is quick to form when it’s hot inside and cold outside or vice versa. For this reason, closed cell foam should be used for shipping container homes because it acts as vapor barrier as well as an insulator. If traditional insulation is used moisture in the form of condensation can cause corrosion, mold, and mildew to build up over time, which can be hazardous and dangerous.
Now, closed cell foam can be expensive, especially if you have to reach a specified thickness for R value to meet inspection (keep in mind building codes and requirements will vary by location and climate). “I paid something like $32,000 to do a closed cell spray foam,” shares Loerop of his Pacific Bin build.
But in hindsight, this one clever technique could have saved him thousands: "A way to save a ton of money is to just apply a very thin layer of closed cell spray foam on the inside of your walls—like three quarter to an inch thick. That will add a little insulation but the main thing is it's creating a vapor barrier for you to then roll in typical batt installation. That alone will probably save you like $15,000 on insulating your home.”
Building a custom container home can be significantly cheaper than a traditional home primarily because of the smaller footprint and materials. Before the project begins, take some time to run the numbers and set a realistic budget. Below is an overview of the main expenses for a DIY container home build—as it goes with any project, be sure to round up!
The total should include the cost of land, the containers themselves (from $1,500 to $5,000), delivery, site prep, a foundation, and permits.
Like any new home build, the shipping container home budget should also include enough to cover the building materials, as well as windows, doors, flooring, plus other interior and exterior finishings to make the space habitable and aesthetic. Hardy DIYers can save money on paid labor in a container home build, but for others, hiring professionals or buying a prefab container home can be a necessary albeit pricier option.
Of course, the cost will increase if you opt for a larger floor plan (meaning multiple containers and more construction materials), high-end fixtures and finishings, and add-ons like a rooftop deck or outdoor patio.
On average, the minimum amount homeowners should expect to spend on a completely finished 40-foot container home DIY build is $30,000-$40,. For an itemized list and full breakdown of the costs of this type of build, check out this video from a general contractor who converted a 40-foot shipping container himself using high-end materials and no additional paid labor, for just $33,000.
As previously mentioned, a prefab container home will inherently cost more in exchange for a beautiful, high-quality dwelling. Scroll through our list below of modern prefab container home builders to scope out the wide range of prices and options available on the market.
Another cost saving tip from Loerop that's most relevant to rural builders of all project types pertains to property surveying. “I paid for like $8,000 for a site survey that was just completely not needed because I thought I had to be pinpoint accurate on where the home is located versus my construction plans,” Loerop shares about his property The Pacific Bin. But turns out, “if it's off five, 10 feet one way or another and you have four or five acres, it does not matter all that much. You can just open your and see the property lines on Google Maps and your location [while walking the property] and it should get you within five, 10 feet of accurate."
It’s little things like this that can save you considerable money on your total build cost. The beauty of doing it yourself!
ModBox Builders
Honomobo
Giant Containers
Love Container Homes
Uncontained Dreams
The Pacific Bin
The cost of a container home varies widely based on several factors, like the square feet, location, design, required modifications, permits, and labor costs required to install or set up the container. Generally, smaller container homes can start around $20,000 to $50,000 for a basic setup, while larger, more customized versions can range from $100,000 to $250,000 or more.
It can be cheaper to build a container home compared to a traditional house, especially with smaller or simpler designs. Ultimately, the cost comparison depends on various factors like size, location, design complexity, required modifications, and the quality of materials used
Container homes are typically clad in Corten steel, which is designed to withstand harsh marine conditions during shipping for about 10-12 years without significant corrosion. However, with proper home maintenance and treatment, container homes can last several decades.
In the ever-tightening housing market of today, discovering affordable and practical ways to expand your living area is key. Given this reality, the innovative use of shipping container extensions offers a cost-effective solution for homeowners seeking additional space.
These structures, known for their durability and versatility, can provide considerable extra room without incurring high construction costs. Therefore, shipping container extensions may indeed serve as the golden ticket for those aiming to broaden their horizons without breaking the bank.
Shipping container extensions are simply shipping containers that have been cleverly repurposed to create extra space in your home or workplace. Typically found transporting goods around the globe, these containers are skilfully transformed to create functional, cost-effective, and environmentally-friendly extensions.
This creative approach to construction not only recycles these robust containers but also offers a unique, modern aesthetic for your home or business. So whether you’re thinking of a home office, a guest suite, or a chill-out zone, a shipping container extension could be the perfect solution.
There’s a whole range of shipping container extensions out there, each with its own unique benefits and purposes. It’s not a one-size-fits-all deal – you’ve got options.
Whether you’re looking at a simple single-container extension to add just a bit more room, or a more elaborate multi-container setup for a large-scale expansion, there’s a solution for every need and every budget.
Single container extensions are a straightforward choice when it comes to adding more room to your property. Essentially, you take one sturdy shipping container and transform it into a liveable or functional space.
Think of it like a ready-made room that’s just waiting for your personal touch.
Multi-container extensions offer you the chance to create larger, more complex structures by joining several shipping containers together. You could piece together an entire guest house, a spacious home office, or even a multi-room extension to your existing home.
Hybrid extensions take the concept of shipping container modifications one step further, merging containers with other building materials like wood or steel.
This approach offers the best of both worlds – the strength and cost-effectiveness of a shipping container, and the aesthetics and flexibility of traditional building materials.
Shipping container extensions offer a variety of sizes to cater to your specific needs and financial plans. The 20 foot and 40 foot options are the standard sizes typically used for shipping container extensions.
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However, don’t feel limited to these dimensions, there are both smaller and larger containers available to buy, ensuring there’s a suitable choice depending on your specific needs and preferences.
20-foot shipping container extensions are a common pick for smaller extension projects. Think home offices, guest rooms, or cozy art studios.
With an interior space measuring around 19’4″ in length, 7’8″ in width, and 7’10” in height, it’s a compact yet surprisingly spacious option that can fit in most properties, making it a practical and popular choice for those looking to add a bit more space without going overboard.
If you’re planning a larger extension project, a 40 foot shipping container might be just what you need. These containers offer plenty of room for a variety of uses, from expansive living areas to structures with multiple rooms.
With an interior measuring approximately 39’5″ in length, 7’8″ in width, and 7’10” in height, this size of container offers ample room for customisation and flexibility, and is a highly versatile solution to significantly boost the space in your home or property.
If you’re after an extension with a bit more vertical room to breathe, a high-cube shipping container extension could be your perfect match. These containers stand taller than the standard versions, boasting a height of approximately 9’6″, in contrast to the 7’10” height of standard containers.
This extra headroom opens up a world of possibilities, like loft-style extensions, or spaces that benefit from higher ceilings such as art studios or home gyms.
When it comes to the cost of shipping container extensions, several factors can influence the final price tag. The size of the container, it’s condition (new or used), and the level of customisation you want can all play a part in determining the price.
For those handy with tools and ready to roll up their sleeves, doing a DIY shipping container extension can be an affordable option. A basic project, where you’re buying a used container and giving it a makeover with insulation, windows, and basic amenities, could cost as little as £7,000 to £11,000.
It’s a cost-conscious way to get more space, as well as having the satisfaction of having done the work yourself. Remember, this is a ballpark figure and costs can vary, so proper planning and budgeting are key.
If DIY isn’t your thing and you’re looking for a more hands-off approach, a basic professional shipping container extension can be an excellent choice. A typical 20-foot shipping container, complete with insulation, windows, doors, electrical and plumbing systems, as well as basic flooring and wall finishes, could set you back somewhere between £14,000 and £21,000.
This option saves you the hard work, offers professional expertise, and still provides a cost-effective solution to add more space to your home.
If you’re aiming for something more than just the basics, a mid-range shipping container extension could be the way to go. For a budget of between £21,000 and £35,000, you can transform a 40 foot shipping container into a more luxurious space, complete with a kitchen or bathroom, custom modifications, and high-quality finishes.
This budget range also allows for more advanced electrical and plumbing systems, meaning you’re not only gaining extra space, but also a more comfortable, practical, and aesthetically pleasing addition to your home.
For those seeking a truly upscale addition to their home, a high-end shipping container extension with luxury finishes could be the ideal solution. Starting from around £35,000 and going up from there, your new extension could involve multiple containers, custom designs, and all the bells and whistles – from premium appliances and fixtures to high-end flooring and finishes.
It’s about creating an extension that isn’t just about extra space, but also about luxury and style.
Shipping container extensions come with a wealth of benefits that make them an attractive option for many homeowners:
When it comes to shipping container extensions, the possibilities are virtually endless. These versatile structures offer a cost-effective solution to a range of space-related challenges or even business opportunities.
Whether you’re in need of extra living space, a dedicated home office, a creative studio, a guest house, or even a motorbike storage area, shipping container extensions can fulfil these needs with ease.
When it comes to home extensions, shipping container extensions offer an excellent solution for adding that much-needed extra living space. Whether you require additional bedrooms, a cozy living area to entertain guests, these versatile structures can be seamlessly integrated into your existing home.
With the rise of remote work and the need for dedicated workspaces, shipping container extensions offer an ideal solution for creating a separate home office or workspace.
These versatile structures can be customised to meet any specific requirements, from a quiet space for focused work to a professional setting for client meetings or a creative studio for artistic endeavours. These extensions provide a customisable and cost-effective option to establish a dedicated area for focused work, boosting productivity and separating work life from home life, right in your backyard.
Shipping container extensions present an excellent opportunity to create standalone guesthouses or Airbnb rentals, allowing you to generate additional income.
By capitalising on the growing popularity of alternative accommodations, such as shipping container rentals, you can unlock the potential to earn extra income while providing a one-of-a-kind experience for your guests. These extensions can be transformed into comfortable and stylish accommodations that cater to guests seeking a unique and memorable stay.
With some customisation and ingenuity, shipping containers can be creatively modified to serve as enclosures for your pool or hot tub, providing a unique and functional space for relaxation and recreation.
For gardening enthusiasts, shipping container extensions can be transformed into functional garden sheds or even greenhouses. These extensions provide a convenient and customisable space to store gardening tools, supplies, and equipment, keeping everything organised and readily accessible.
By adding windows, ventilation systems, and shelving, shipping container extensions can also serve as greenhouses, creating a controlled environment for nurturing plants and extending the growing season.
When it comes to storage needs, shipping container extensions offer a practical solution for accommodating items that may not fit in your main house or garage. These extensions can serve as valuable additional storage space, keeping your belongings secure and organised.
From choosing the right container and preparing the site to modifying the container and connecting it to your utilities, there are several key considerations to keep in mind when extending your house with a shipping container.
Before purchasing a shipping container, plan out the design for the extension. Consider factors such as how the extension will connect to your house, the placement of doors and windows, and any necessary electrical or plumbing installations.
Before proceeding with your shipping container extension, Check with your local authorities to determine whether you need a building permit for the shipping container extension. Regulations may vary, and it is important to determine whether you require permits or inspections for structural modifications or electrical work involved in the container extension project.
Being aware of and adhering to these requirements ensures compliance with local building codes and promotes a smooth and hassle-free process.
To prepare the site for your shipping container extension, it is essential to ensure a level and stable foundation. Assess the area where the container will be placed and make any necessary preparations.
Depending on the specific location, you might need to pour a concrete foundation or install a retaining wall to provide a solid and level base for the container. This step is extremely important to ensure the structural integrity and longevity of your extension.
When it comes to modifying the shipping container for your extension, we recommend collaborating with a professional contractor who specialises in container modifications. They can help you bring your vision to life and ensure that the modifications align with your specific requirements.
This process may involve cutting out windows and doors to enhance natural light and accessibility, installing insulation to your shipping container to regulate temperature, incorporating electrical wiring for lighting and power outlets, and adding flooring and interior finishes to create a comfortable and inviting space.
Once you’ve completed the necessary preparations, it’s time to embark on the construction phase of your shipping container extension. While these additions generally take less time to build compared to traditional home expansions, some preparatory work is still required.
Depending on your desired aesthetic, you can choose to leave the corrugated surface of the container exposed on one side, embracing an industrial/modern look. However, if you prefer a more traditional look, you have the option to clad the walls with materials that match your existing home or reflect your desired style.
It’s important to note that attaching a shipping container to your existing home may involve significant demolition work and potentially complex roofing issues. There are a couple of different options for building your shipping container extension.
When opting for integrated construction, there are ascertain key factors to consider before proceeding with building directly onto your home.
Involve a structural engineer who will assess your home’s structure and determine the necessary steps to ensure a safe and secure addition.
Another critical aspect to address is confirming that the wall you plan to open up can still bear the weight of the entire house.
If the expense of constructing an addition is a concern, standalone construction presents a viable and cost-effective alternative where a separate room is built adjacent to the house and connected via a small breezeway.
By opting for this approach, you can still expand your living space without the need for extensive structural modifications or integration into the existing house, ultimately offering a practical solution that meets both your needs and budget.
Depending on your specific requirements and local regulations, you may need to connect your shipping container extension to your house’s utilities, such as electrical and plumbing systems.
It is highly recommended to engage the services of a professional electrician or plumber to ensure that the connections are done safely and comply with building codes. Their expertise will help ensure that the electrical and plumbing systems in your shipping container extension are properly integrated with your existing utilities, providing functionality, safety, and peace of mind.
Once the structural work is completed, it’s time to complete the interior of your shipping container extension. Finish the space by selecting and installing the desired flooring, whether it’s hardwood, tile, or another material that suits your taste and purpose.
Depending on the purpose of the extension, you may want to install fixtures such as lighting, plumbing fixtures, and appliances.
This is the stage where you can truly customise the interior to reflect your personal style and meet your specific needs. By paying attention to these final details, you can transform the container into a functional and inviting space that seamlessly integrates with your existing home or stands as a standalone structure.
Shipping container extensions provide a cost-effective, versatile, and innovative solution to address various space-related needs. Whether you’re looking to add extra living space, create a home office, build a guesthouse, or explore other possibilities, shipping container extensions offer endless opportunities for customisation and functionality.
With proper planning, collaboration with professionals, and adherence to building regulations, transforming a shipping container into an extension can be an exciting and rewarding endeavor. By considering the benefits, costs, and various design ideas discussed, you can embark on your journey to expand your living space and unleash the potential of shipping container extensions.
Are you interested in learning more about Modified Shipping Container House? Contact us today to secure an expert consultation!