How to Buy a Shipping Container: What to Know Before Buying a Shipping Container

Historically, shipping containers were rarely seen anywhere other than coastal ports or at sea. Today, they are used for everything from storage and shipping to home extensions and business premises. Thanks to their strength and flexibility, shipping containers have become a popular choice for anyone looking for something a bit out of the ordinary.

Shipping container sales aren’t showing any signs of slowing down either; the shipping container market is expected to hold a significant market share in the UK by 2033. But before you rush out and buy one for your next project, there’s plenty to get to grips with.

Things to consider before buying a shipping container

If you’re mulling over a shipping container purchase, there’s a lot to think about, including what you’ll be using it for, whether to buy or rent, and how much you want to spend.

What will you be using your shipping container for?

The first thing to figure out is how you plan to use your shipping container. Will it be for storage, transport, or something more creative like a conversion project? Knowing this upfront makes it much easier to choose the right size, condition, and any add-ons you might need.

For example, if you plan to use a shipping container as a living or working space, you’ll need something big enough to meet your needs.

If you’re transporting goods that require controlled temperatures, including chemicals, medicine, or perishable goods, a COSHH store or reefer may be the best option. And if you’re using the container for transport, make sure it’s in good condition and certified for road or sea use.

Do you need a new or used container?

There’s plenty to consider when comparing new and used shipping containers. From the visual appeal of your container to your budget and whether you’ve got the time to handle any repairs.

When deciding on a container, think about what you’ll be using it for, how long you’ll need it, your budget, and whether you’ll need to make any modifications. This will help you figure out which type of container suits you best. Both new and used options can work well – it’s all about finding the right balance between cost, quality, and practicality.

If you’re looking for a container that will stand the test of time, new shipping containers are the way to go. Since they haven’t been exposed to the wear and tear of sea transport or harsh weather, they tend to last longer and often come with warranties. This makes them ideal for long-term investments, including conversion projects and secure storage, or transporting sensitive goods. However, keep in mind that new units are typically more expensive than used ones. 

Used shipping containers are often chosen by buyers on a tighter budget. They’re cost-effective and more widely available, especially given there is sometimes a waiting list for new containers. Pre-owned shipping containers are a great option for storing items that aren’t sensitive to temperature or moisture, such as tools, tires, and equipment. They’re also a smart choice for workshops and other functional spaces where durability matters more than a flawless appearance.

What is your budget?

Setting a budget is a key step when buying a shipping container. New or used, they’re generally a cost-effective option – but it’s still important to be clear on how much you’re willing to spend.

Shipping containers can cost anywhere from £700 to £16,000, with the price dependent on your location, the container size and its condition. 

Should you buy or rent a shipping container?

You don’t just have to buy a shipping container – you can also rent one! When deciding between buying or renting a container, it’s good to ask yourself a few key questions:

• How will you use the shipping container?
• How long do you plan on keeping the container?
• How much does the container cost to buy?
• Will I need to move the container to different locations?
• How much would it cost to rent the container for the time you need?
• Would you need to modify the container?

It’s important to note that when you rent a container, you typically can’t make modifications. For short-term storage, renting could work, but if you’re planning to create a pop-up workspace or retail unit, purchasing a container may be a better investment in the long term.

How to choose the right shipping container

Choosing the perfect container for your needs is the next step in your shipping container purchasing journey. It’s a big step that comes with a few important choices to make before you decide.

Shipping container size

Finding the right-sized container is super important. Once you know how you’ll be using it, it’s time to think about how much space you’ll actually need. Shipping containers are available in a few different sizes, but the most popular options are 20-foot and 40-foot containers. 

Uses for different container sizes

The size of your shipping container can make all the difference depending on what you’re using it for and how much space you have available. Here are a few examples to give you an idea:

• 40-foot shipping container – These large containers can be used for virtually anything, thanks to their size and modifiable nature. They are frequently used for storing goods, building construction site offices, and shipping general-purpose cargo. With an internal storage capacity of around 320 square feet, a 40-foot container gives you plenty of room to work with. 
• 20-foot shipping container – As the most popular container size, these units are a go-to choice for commercial and industrial storage requirements, shipping, and modifications. 20-foot containers are commonly used for home workshops, living spaces, or onsite offices for small teams. 
• 10-foot shipping container – Ideal for small or difficult spaces, 10-foot containers offer a practical solution for mobile workstations and offices or small-scale storage. They have an internal storage capacity of around 80 square feet and can fit comfortably on driveways and into parking spaces. This size is not uncommon in cities where space is hard to come by.
• Smaller shipping container – Compact 8-foot and 9-foot shipping containers can be a great option if you need storage but are space-restricted. Many people use these units for securely storing equipment and tools, often in place of a traditional garden shed. 
• Less common sizes – It’s possible to cut down a 40-foot container to 30 feet, which can be a good option if you don’t quite have 40 feet of space on your land but need more than a 20-foot container’s capacity. If you have larger needs, it’s possible to buy shipping containers in 45-foot, 53-foot, or 60-foot variations. Larger containers can also be joined with smaller units to create even longer spaces – if you require a monster unit like a 70ft or 80ft container.

Type of shipping container

Different types of shipping containers come with their own unique set of benefits, depending on what you’re looking for. Knowing the options out there will help you pick the right container for your needs.

Shipping containers are super versatile and can come with special features to fit your specific plans, or they can be easily modified if you need something more out of the box.

Standard vs high cube

When choosing between a standard and a high cube container, the main difference is height. A standard container is typically 8 feet 6 inches tall, while a high cube container offers an extra foot, standing at 9 feet 6 inches. This extra height can be a game-changer if you need more vertical space for storage, equipment, or modifications. They’re often chosen for storing bulky equipment, oversized furniture, or large machinery.

Like their standard container cousins, high cube units can also be modified and converted. They are commonly used for converting into workshops or living spaces or adding extra space onto an existing home extension. The additional height on these containers makes them comfortable for standing inside, and can make the space feel much more spacious and comfortable – especially if you use them as a living space.

Specialised containers

Specialised containers are made for specific storage or transport needs that go beyond the typical shipping container. If you have unique requirements for storing or shipping goods, a specialised container offers the right features to keep your items safe and secure. The most common specialised containers include:

• Open-top containers – Unlike standard containers, open-top units most often have a tarp roof instead of solid steel. While this is enough to keep your goods protected and dry, it also provides additional flexibility for top-loading and shipping oversized or uniquely shaped cargo. Open-top containers are also a good option if you are planning to modify or stack containers.
• Open-side containers – If long-term storage is on the cards, open-side containers are ideal. Also known as ‘full access containers’, these units allow quick access to your goods through a larger side opening, which avoids filtering through everything to get to items at the back. These units are also increasingly used for small restaurants or pop-up bar conversions. 
• Double-door containers – For additional flexibility in loading and unloading a shipping container, double-door containers, also known as tunnel containers, comprise doors on each short end of the container. If you’re shipping goods, double-door containers can accommodate a partition down the middle so you can transport two different types of freight.
• Flat rack containers – These containers have two short sides, no top and no long sides. They provide peak flexibility for transporting items in various shapes and sizes, making it much easier to load and unload your goods. 

Depending on what you need, there are plenty of other container options to choose from. For example, if you’re shipping perishable goods, a refrigerated container might be the way to go. Or, if you need extra protection for your items, a dry cargo or insulated container could do the trick.

The condition of the shipping container

Since shipping containers come in various conditions, it’s important to keep this in mind when choosing the right one for your needs. You’ll generally find containers in three main conditions: new, used, and refurbished. However, it’s also important to be aware of other terms you might come across, like “one-trip,” “cargo-worthy,” “wind and watertight,” and “as-is.”

One-trip containers

If you’d like something ‘almost new,’ a one-trip shipping container is ideal. Manufactured overseas, these shipping containers have made just one trip with cargo to the UK, which means they are typically in great condition. Unlike used containers that have taken many journeys around the world, they will not have spent copious amounts of time at sea or been handled extensively at ports. 

These containers are a cost-effective option for people after a container in great condition with plenty of life in it. They are often used in modifications, portable storage, or ocean exports. 

Cargo-worthy (CW) containers

If you’re going traditional and using your shipping container for shipping, a cargo-worthy (CW) container is a must. These units are Container Safety Convention (CSC) certified, a mandatory standard for containers used in international transport. This means they are deemed suitable for transporting cargo overseas. 

CW containers are commonly 10-15 years old when they are given a new purpose. Like most shipping containers, they are made from high-quality Corten steel, making them wind and water-tight, as well as structurally suitable for international transit. 

Depending on how much the container was used in its past life, some issues may need addressing. For example, you might see exterior rust, dents, or welded patches from previous repairs. CW containers are often sold at a much lower price than new or one-trip containers, making them a cost-efficient option. 

Wind and water tight (WWT) containers

Similar to cargo-worthy shipping containers, wind and watertight (WWT) units often come with a small amount of wear-and-tear but have a guarantee of being weather-tight for a certain period. WWT containers are commonly sold between 10 and 20 years of age, once they have been retired from overseas journeys for lease fleets. 

WWT shipping containers are a good choice for storage or building purposes but not shipping. This is because, in most cases, their CSC plate has expired and they are no longer deemed safe for ocean exports. 

As-Is containers

Have you ever seen the note ‘sold as seen’ when purchasing goods from an auction or online? As-is containers follow a similar methodology. They are typically retired cargo units and usually have visible damage, including severe wear and tear – but they are effectively ‘sold as seen.’ 

As-is containers may be sold with holes, floor damage, or other issues that could be repaired, making them a good bargain if you have the know-how to fix them. However, we don’t recommend purchasing as-is containers without a thorough inspection by someone who knows how much these repairs could cost. 

Structural integrity

If you think you’ve found a shipping container, you must inspect it for any structural issues or leaks. Where possible, you should do this in person.

It’s a good idea to step inside the container and close the doors so you can see if light shines through any holes. Then, check for visible dents on the roof which could collect water and lead to rust spots. If you find surface rust, don’t panic. This is usually unproblematic and can be easily repaired. However, deep corrosion can weaken the beams, so always look for this. 

Next, you should visibly check the container’s shape for structural integrity and any slanting, ensuring the cargo doors and locking mechanisms work. If possible, you should also inspect the underside of the container as this can be a place for damage without you knowing until issues occur. If you can’t do this before purchase, we highly recommend doing it during offloading and delivery.

Security features

Although shipping containers are secure by design, consider whether additional security features would benefit you. If you’re using your unit for storage or modification, look for containers with reinforced doors, heavy-duty locks, and secure, functioning locking mechanisms that prevent unauthorised access.

Depending on your needs, you could consider containers with stronger, tamper-proof designs. You might also want to modify your unit with extra security measures such as CCTV, alarm systems, or fencing around the premises. 

To further protect your container and its contents from criminals, you should place your container in a safe, well-lit location.

Cost

It’s not just the purchase price you need to consider when buying a shipping container, you should also work out the overall costs of your project. This can vary significantly depending on the container’s size, type, condition, and any modifications.

In most cases, new shipping containers are more expensive than used ones. If you’re planning to repair or modify a used container, this will bump up your total investment. Before choosing a shipping container, we recommend comparing prices from different suppliers and considering all potential costs, such as VAT, taxes, insurance, and customisations.

Advantages of buying a new shipping container

There are several advantages to buying a new shipping container, the obvious being the superior durability and longevity. As these units are unused, they will be in top condition and free from damage. In line with this, new containers are less likely to have any pre-existing weaknesses or vulnerabilities in their security features, so you can sleep easy.

Another benefit of buying a new container concerns modifications. It’s typically easier for companies, – and indeed yourself if you’re up to the task – to apply modifications to a new shipping container. This is because repairs are not needed, and there will be no weak spots to cause problems during the customisation.

Advantages of buying a used shipping container

Buying a used shipping container is super beneficial, specifically when contemplating costs. They provide significant value for money compared to new containers and, depending on their condition, still offer plenty of strength and durability. Used units are also widely available in several sizes and conditions, so you typically won’t have to wait long to get your hands on one.

For those keen to lean into the industrial aesthetic of shipping containers, the nature of used shipping containers means they often come with a weathered look. It’s not everyone’s cup of tea, but if you like that aesthetic, used containers are a good choice. 

Other considerations to keep in mind when buying a shipping container

While the shipping container itself should be thoroughly considered before you decide to buy one, there are several other factors to think about when choosing your container.

Location

If you’re using a container for storage or modification, getting its placement right is key. You should provide easy access to the area, with level ground to stabilise the container. This may involve preparing foundations for your shipping container to sit on, which could include concrete blocks, sleepers, or a slab base. Having a level foundation can help you avoid issues with structural integrity, sliding, or using the doors effectively. 

Planning permissions and regulations

You will need to research local regulations in your area to assess whether you need planning permission to place your container. Contact your local council to gain a full understanding of any requirements before you purchase your container.

Additional costs

Considering all of the costs involved in the purchase, delivery, and potential repairs or modification of your shipping container is necessary to avoid any surprises down the line. It’s possible to obtain quotes for additional work before you buy a shipping container, so you should be able to get a good idea of how much everything will cost. 

You’ll want to think about:

• The cost of the unit, bearing in mind its size and condition
• Delivery fees, which will be influenced by the size and weight of your container
• Modifications, such as adding windows, doors, or external features
• Interior features, such as lighting, ventilation, or insulation
• Fees, such as for the land you’re going to be using

Customisation options

With shipping containers being inherently flexible, modifications can be easily completed. But they can be costly, so you’ll want to consider what customisations you need before you purchase a unit. 

Some customisation options to consider include:

• Electrics
• Plumbing
• Insulation
• Ventilation
• Windows and doors
• Partitioning
• Container stacking

Delivery options

It’s important to also consider the logistics of delivery and container placement before you purchase and arrange an offloading date. Shipping container delivery can be complex, particularly in difficult-to-reach or confined locations. This makes thorough planning imperative.

You should make sure there is enough space for the delivery vehicle, bearing in mind the size of your container and the subsequent size of the delivery vehicle required. There should be enough space for the vehicle to park, for stabilising legs to extend, and enough room for turning or reversing after offloading. If the location is tricky, such as being narrow or hard to access, consider whether a crane will be required. You will also need to clear the area of obstructions, overhead wires, and overgrown trees.

What to look for when buying a shipping container

To make the best investment when purchasing a shipping container, it’s important to visually check over your options. By considering each element carefully, you can select a container that meets your requirements and provides long-term value.

Rust and corrosion

As shipping containers are made with steel, rust is a common problem. When purchasing a shipping container, you should thoroughly inspect it for signs of rust, particularly in areas more prone to moisture build-up, like the roof and door seals.

Surface rust is easily treatable and usually not a problem. However, deep corrosion may weaken the metal and compromise durability. While the container’s price will reflect the level of visible rust, consider how much it may cost you to repair it, as the effort may not be worth it. 

If your container is rust-free, you’ll want to think about rust-prevention methods to make sure it stays that way, such as applying protective coatings, keeping it clean and dry, and addressing any signs of wear early.

Signs of previous repairs

While it’s not uncommon for shipping containers to have undergone repairs, you should still inspect them to check for signs of past damage and whether this could impact the future durability and lifespan of the unit. 

Look for patched areas, welded sections, or mismatched paint; these may all indicate previous damage. Of course, some repairs are completed to a high standard and could lengthen the container’s lifespan. However, poor-quality workmanship may lead to structural issues or leaks later on. 

Pests and contaminants

Pests love nothing more than squeezing into a cosy shipping container, particularly those used for agricultural storage where food may be in abundance. Before you buy your shipping container, check for signs of pests, such as chew marks, holes, or droppings. 

You also need to be aware of any contaminants inside the container. Ask your seller if the container was used for chemical storage or transporting hazardous materials. There could still be lingering chemical residues or strong odours, which may be harmful. 

Where to buy shipping containers?

With shipping containers widely available, you need to conduct plenty of research and choose the right seller. Like any purchase, where you buy from will differ in quality, price and customer service. To help you make an informed decision, you should gather an understanding of what to expect when buying a shipping container from different types of sellers.

Local dealers

If there are local shipping container dealers in your area, this can offer convenience and a more personalised experience. Local dealerships often keep a range of new and used shipping containers, and many will deliver locally. 

As well as providing you with a shipping container, local dealers may also offer container customisations – ideal if you’re keen to modify your shipping container to a unique style.

Individuals

You can buy shipping containers from individual sellers, which is often very cost-efficient. But you need to exercise caution if you choose this option. Just like buying anything from an individual seller, you’re unlikely to have any guarantees or warranty should you find damage or leaks after purchasing. 

If you choose to go down this route, you must thoroughly inspect the container before agreeing to a sale. You should also ask about its history to understand its journey and the subsequent impact on its durability and longevity. 

Suppliers

Reputable shipping container suppliers are highly experienced and can help you find the best unit for your needs, especially since they typically have a wide selection of containers in various sizes, types, and conditions. For businesses, it’s a wise choice to choose a renowned provider as you’ll have a wider selection to choose from and will usually receive warranty for your container. 

Larger shipping container suppliers may also have the infrastructure to offer delivery services all over the UK, as well as support bulk purchases. Many suppliers also provide container conversion services, making them the perfect choice if you want to modify your unit. While shipping container suppliers might seem more expensive at first, the superior customer support and quality of products make up for this.

Mistakes to avoid after buying a shipping container

If you’ve spent a long time researching shipping containers and have found the perfect one for your needs, you’ll want to avoid the common mistakes people make upon shipping container delivery. After all, you don’t want your efforts to go to waste!

Not preparing the ground

Before your shipping container is delivered, it’s critical that you properly prepare the ground for the container to sit on. Without proper foundations, your container may be susceptible to water damage underneath, which could lead to rust, corrosion and potentially structural damage. To keep your container safe and dry, it should be placed on a level and sturdy surface.

Neglecting maintenance

Although shipping containers are built to last, with exceptional durability and protection from the elements, regular maintenance is still important to keep them in top condition. It’s possible to further extend the container’s lifespan by regularly inspecting your unit and repairing any early signs of wear and tear. You can also further protect your container with weather-proof and rust-proof paint.

Installing the wrong type of insulation

Insulation is a key consideration when purchasing a shipping container, particularly when converting them into a business premises, living space, or storage facility. However, it’s important to research different types of insulation to make certain you install the correct type for your needs.

While traditional insulation is the most popular choice, many people install green roofs on their shipping containers. This often includes soil, grass, and vegetation, all working together to create natural insulation that keeps the inside of the container warm while preventing moisture build-up on the roof.

Putting too much weight on the roof

Even though they are built to be durable, you mustn’t put too much weight on your shipping container roof. This part of a container is not meant to be weight-bearing, and doing so can damage its structural integrity. 

Shipping container roofs are typically weaker in the middle, with the corners providing the most strength. If you were to load the roof of your container with heavy items or install a secondary roof that is not fully supported, the roof could weaken and potentially collapse.

The bottom line

A shipping container purchase is a big decision and not one you should take lightly. Whether you’re using it for storage, transportation, or modification, understanding the factors you need to consider before investing is highly important. 

From understanding your container needs to getting to know different container types, we’ve covered everything you need to think about before making a purchase. If you still need guidance with buying the perfect shipping container, contact our friendly team for advice.

FAQs

Can I take a look at my container before I buy it?

In most cases, it’s possible to view your shipping container before you agree to purchase, especially if you’re buying a used shipping container. If you’re buying from a large shipping container supplier, this may not always be the case, so it’s best to check with your supplier first.

At Universal Containers, you’re free to stop by our location at Wharfside Container Park and have a look at our available containers for sale.

Can I buy a shipping container online?

Yes, you can buy shipping containers online. At Universal Containers, we offer a wide range of new and used shipping containers, all available to buy online with delivery across the UK.

Can I buy a shipping container from a port?

With large volumes of shipping containers coming into and leaving ports every day, it’s often possible to purchase a container from a port. Bear in mind, the possibility of purchase will depend on availability on your chosen day. You may be able to call ahead to see what is available before travelling there. 

Can I collect my shipping container?

Many suppliers allow you to collect your shipping container instead of delivery. You’ll need the right vehicle and support on hand to transport it properly, though. You may also need to fulfill specific health and safety requirements that your supplier requires, so we advise calling them to find out how the collection works before you agree to it.

How do I pay for a container?

There are several ways to pay for a shipping container. If you’re buying a shipping container, you can usually pay by credit or debit card, bank transfer, and sometimes, payment plans. This is often the case whether you’re buying online or in person. 

If you’re hiring a shipping container, you will likely pay a deposit up front, followed by regular monthly installments depending on how long you will be using the shipping container.

How long will shipping containers last?

Typically, shipping containers have a lifespan between 25 and 35 years, but with regular maintenance and a little TLC, many can live up to 50 years. The lifespan of your particular container will depend on whether you are buying it new or used, what it was used for and any damage it incurred, and how well you look after it. 

Are metal shipping containers fireproof?

Shipping containers are not fireproof. However, their steel construction is non-combustible, making them fire-resistant. This means they can withstand fire for a period before the steel weakens and fails. The condition of your shipping container will also impact how fire-resistant it is, with regularly maintained and newer shipping containers fairing better.

How do I buy a shipping container through Universal Containers?

At Universal Containers, we’ve made it super easy to buy a shipping container. All of our shipping containers are available on our website. Simply browse our selection of shipping containers, select your options and additional features, add to your cart, and check out. That’s it! From here, we’ll handle any modifications and the delivery of your container.

You can also give us a call at 0161 775 3217 (Option 1) if you need any further assistance assistance.

How does Universal Containers ensure the quality of containers?

All Universal Containers shipping units are thoroughly inspected to ensure the highest quality, whether you buy new or used. Our team of experts inspect and grade every shipping container, making sure they meet the required durability, security, and structural integrity standards.