Buyer's Guide: Used 20ft Shipping Container for Sale

You need more space. Maybe your garage is overflowing, your business inventory is taking over, or you’re tired of working from the kitchen table. A wooden shed seems too flimsy, and a full-blown extension is too expensive. This is where a used shipping container becomes the perfect solution. When you find the right used 20ft shipping container for sale, you get an instant, secure, and weatherproof structure delivered right to your property. It’s a practical and surprisingly versatile answer to your space problem, ready to be used for storage immediately or customized into the office or studio you’ve been wanting.

Key Takeaways

• Look Past the Cosmetics

  : A used container will have dents and rust; focus instead on its structural integrity. Ensure it has a "Wind and Watertight" (WWT) grade and check the door seals and flooring to get a durable, leak-proof unit.

• Plan Your Full Project Budget

  : The container's price is just the starting point. Remember to account for delivery fees, site preparation, and the cost of any modifications like insulation, windows, or electrical work to create your ideal space.

• Choose Your Supplier Wisely

  : Working with a professional supplier gives you essential protections, like a wind and watertight guarantee and reliable delivery. This helps you avoid the common pitfalls of private sales, such as receiving a leaky or damaged container with no recourse.

What Exactly Is a Used 20ft Shipping Container?

When you hear "used shipping container," your mind might jump to a rusty, beat-up box sitting in a port. While they've certainly seen some action, that's only a small part of their story. These containers are built from Corten steel, an incredibly tough material designed to withstand years of harsh ocean travel, salty air, and being stacked high on cargo ships. So, a used container doesn't mean a worn-out one. It means it has a history, but it also has a whole lot of life left in it.

Think of it as a blank canvas for your next project. Whether you need secure storage for your business inventory, a backyard workshop, or the foundation for a cool new office space, a used container is a solid starting point. They are practical, durable, and surprisingly versatile. Before you start shopping, it’s helpful to get clear on what you're actually getting when you buy a used 20ft container, from its exact dimensions to how it really compares to a shiny new one. Let's break it down.

Standard Specs and Dimensions

So, how much space are we really talking about? A standard used 20ft shipping container gives you about 150 square feet of floor space, which is roughly the size of a small bedroom or a one-car garage. In terms of volume, that’s around 1,170 cubic feet, perfect for storing the contents of a one or two-bedroom apartment. These units are surprisingly lightweight for their strength, weighing just over 5,000 pounds when empty. But here’s the impressive part: they are engineered to hold more than 55,000 pounds of stuff. This incredible durability is exactly why they are so popular for secure storage and creative building projects.

New vs. Used: What's the Real Difference?

The most obvious difference between a new and used container is its appearance. A used container has been on a few adventures, so you can expect to see some cosmetic character, like dents, dings, and patches of surface rust. This is perfectly normal and doesn't affect its structural strength. The biggest advantage of going with a used model is the price; they are much more budget-friendly than a brand new container that has only made one trip from the factory. Your choice really comes down to your priorities. If you need a pristine, flawless finish from day one, new is the way to go. If you're looking for a great value and don't mind a little cosmetic wear (which can often be painted over), a used container is an excellent choice.

How Much Should You Expect to Pay?

Let's talk numbers. The price of a used 20ft shipping container isn't set in stone, but you can generally expect to find them starting in the low thousands. For example, a basic used 20ft container can start as low as $1,300 to $1,500, depending on its condition and your location. Think of it like any other market; prices change based on supply and demand. When shipping ports are full of containers, prices tend to be lower. When demand is high, they go up.

The initial price you see is just a starting point. The final cost depends on several factors, from the container's condition to any modifications you want to add. While a brand new container will naturally cost more, a well-maintained used one can offer incredible value and last for decades. The key is to understand what you're paying for and to choose a container that fits both your project and your budget. We offer a range of storage containers to make sure you find the perfect match without any surprises.

What Influences the Final Price?

The price tag on a shipping container is shaped by a few key things. First is its condition. A container graded as "Wind and Watertight" will cost more than an "as-is" unit, but you're paying for the guarantee that it will protect your belongings from the elements. Second, market demand plays a huge role; prices can shift based on global shipping trends and local availability. Finally, customization is a major factor. Adding features like doors, windows, insulation, or electrical wiring will increase the cost, but it also transforms a steel box into a functional space. Our past work shows just how much you can personalize a container to fit your exact needs.

Is Rent-to-Own a Better Fit?

If buying a container outright feels like too big of a step, you’re not out of options. While a short-term rental is great for temporary projects, it doesn't make sense if you need storage for more than a few months. That’s where a rent-to-own plan comes in. It gives you the flexibility of a rental with the long-term benefit of ownership. You get a lower upfront cost and manageable monthly payments that go toward owning the container. Our rent-to-own program is designed to be a straightforward, budget-friendly path to getting the durable storage or workspace you need without the immediate financial commitment of a full purchase.

Creative Ways to Use a 20ft Shipping Container

A used 20ft shipping container is so much more than just a steel box. Think of it as a blank canvas for your next big idea. These versatile structures are incredibly flexible and can be transformed into almost anything you can imagine, from simple storage to a fully functional living space. Their strength and durability make them a reliable foundation for countless projects. If you’re looking for a solution that’s practical, creative, and built to last, you’ve come to the right place. Let’s explore a few popular ways people are using these containers.

Secure Storage for Your Home or Business

One of the most straightforward uses for a 20ft container is for instant, secure storage. If your garage is overflowing or your business needs a place to hold extra inventory, a container is a perfect solution. Unlike a wooden shed, these steel units are wind and watertight, protecting your belongings from the elements and pests. They are great for storing everything from lawn equipment and seasonal decorations to important business files and tools. With a sturdy lock, you get peace of mind knowing your items are safe. Our containers provide a simple and durable way to add extra space right on your property.

A Ready-Made Office or Workspace

Tired of working from your kitchen table? A 20ft container can easily be converted into a private, comfortable backyard office. It provides a dedicated space to focus, separate from the distractions of your main house. With a few modifications, like adding windows for natural light, insulation for year-round comfort, and electrical wiring for your computer and lights, you can create a fully functional workspace. This is an amazing option for entrepreneurs, freelancers, or anyone working from home who needs a designated professional area. Check out our current work to see how we can tailor a container just for you.

Your Next Studio, Workshop, or Creative Hub

Let your creativity run wild by turning a shipping container into your personal studio or workshop. Whether you’re a painter, potter, woodworker, or musician, a container offers a durable and private space to pursue your passion. The solid steel construction is ideal for housing heavy equipment or containing the mess from your latest project. You can customize the interior completely, adding workbenches, shelving, and specific lighting to create your ideal creative environment. A 20 FT Brand New Container can be the perfect starting point for a clean, modern studio that’s built to inspire.

The Foundation for a Tiny Home

The tiny home movement is still going strong, and shipping containers are a popular choice for these builds for a good reason. A 20ft container provides an incredibly strong and durable shell for a small, efficient living space. While it’s a more involved project, the result is a unique and resilient home. You can design the layout to include a small kitchen, bathroom, and sleeping area, creating a cozy and self-contained living unit. For a project of this scale, our rent-to-own program can make it more accessible to get started on building the tiny home of your dreams.

Decoding Container Condition Grades

When you start shopping for a used shipping container, you'll quickly run into a bunch of acronyms and industry terms. It can feel a little like learning a new language, but don't worry, it's simpler than it looks. These condition grades are just a shorthand way for suppliers to describe a container's history and its current state. Understanding what they mean is your key to finding the right container for your project and your budget, without any unwelcome surprises. Think of it as the container's report card. It tells you if it's ready for secure storage, strong enough for a big modification project, or if it's more of a fixer-upper.

At Mann's Cans, we believe in being completely transparent about the condition of our used containers. We want you to feel confident in your choice, whether you're buying a nearly new unit or one with a bit more character. The most common grades you'll see are Wind and Watertight (WWT), Cargo-Worthy (CW), and "As-Is." Each one represents a different level of wear and a different price point. Let's break down what each of these grades really means for you, so you can pick the perfect container for your needs.

Wind and Watertight (WWT)

This is one of the most common and reliable grades for a used container. A Wind and Watertight (WWT) certification is exactly what it sounds like: a guarantee that the container will protect its contents from the elements. It won’t have any holes or leaks, so you can be sure that wind and rain will stay outside where they belong. These containers will likely have some cosmetic signs of their past life, like surface rust and dents, but their structural integrity is solid. For most storage needs, from stashing business inventory to clearing out your garage, a WWT container is an excellent and cost-effective choice.

Cargo-Worthy (CW)

A Cargo-Worthy (CW) container is a step above WWT. To get this certification, a container must pass a rigorous inspection to prove it's structurally sound enough to be loaded with cargo and shipped across the ocean. Even if you have no plans to send your container on a voyage, this grade tells you a lot about its quality. It means the floors, frame, and doors are all in great shape. A CW container is a fantastic option if you're planning a more involved project, like an office or studio, where structural integrity is a top priority. You're essentially getting a unit that's been vetted for heavy-duty performance.

As-Is" Condition

An "As-Is" container is the most budget-friendly option, but it comes with a few caveats. These are retired containers that have seen many years of service at sea, and they show it. You can expect to see significant dents, dings, and patches of rust. The term "As-Is" means the seller makes no guarantees about its condition, so it might have issues that need addressing. This grade is best for someone who isn't afraid of a little DIY or who needs a container for a purpose where aesthetics and being perfectly sealed aren't critical. If you're on a tight budget, our rent-to-own program can be a great alternative to get a better-condition container without the upfront cost.

Your Pre-Purchase Inspection Checklist

Buying a used shipping container is a smart and sustainable choice, but you want to be sure you’re getting a solid unit for your money. Think of this checklist as your guide to making a confident purchase. While we inspect every container that comes through our yard, knowing what to look for yourself will help you select the perfect one for your project. A little hands-on inspection goes a long way in preventing future headaches. Remember, a 20 FT Used Container has had a previous life, often traveling the world by sea for over a decade. This means you should expect some character, like dents, dings, and patches of surface rust. The goal isn't to find a flawless box; it's to find one that is structurally sound, secure, and ready for its next chapter with you. By walking through these key points, you can feel great about your investment and get excited about bringing your container project to life.

Check the Structural Integrity

First things first, look at the container's bones. These units are made from tough Corten steel for a reason, but you should still check the main frame, corner posts, and support beams for any major damage. Minor dings are completely normal and don't affect its strength. What you want to watch out for are significant bends or warping in the frame, which could suggest it was mishandled or involved in an accident. A solid structure ensures your container can be safely moved, stacked, and modified. All of our storage containers are checked to ensure they meet these structural standards, giving you a reliable starting point for any project.

Inspect the Flooring

The original flooring in most shipping containers is 1-1/8" thick marine-grade plywood, designed to withstand heavy forklift loads and years of use. When you step inside, walk around the entire floor and feel for any soft, spongy, or excessively bouncy spots. These could indicate water damage or rot from beneath. Also, look for any major cracks, deep gouges, or signs of chemical spills that might have soaked into the wood, which can sometimes leave a lingering odor. While floors can be repaired or even overlaid with new material, starting with a solid foundation will save you time and money down the road.

Test the Doors and Locks

This might sound simple, but don't skip it. Open and close both container doors a few times. They are heavy, but they should swing without a major struggle. Check the rubber seals, or gaskets, around the edges of the doors. Are they intact and flexible? These gaskets are what make the container wind and watertight, so you want them to be in good shape. Test the locking bars and handles to make sure they move and secure properly into the cams. After years at sea, they can be stiff, but they should be fully functional.

Look for Rust and Corrosion

You will see rust on a used container, and that’s okay. Corten steel is designed to develop a stable, rust-like layer of patina that actually protects the steel underneath from deeper corrosion. What you need to differentiate is this harmless surface rust from severe, flaky rust that indicates the steel is being eaten away. Pay close attention to the roof, the corners, and the cross-members under the floor where water might pool. A little bit of rust adds character and can be easily treated with a wire brush and paint; a hole is a real problem.

Spot Signs of Moisture Damage

The best way to check for leaks is to step inside the container on a bright day. Have someone close the doors completely behind you. Wait a moment for your eyes to adjust, then look for any pinpricks of light coming through the walls or ceiling. Any light you see is a potential entry point for water. Also, take a moment to check for musty smells or visible water stains on the floor and walls, which are tell-tale signs of past moisture issues. A "wind and watertight" guarantee is standard for a reason, and this simple test is the best way to verify it.

Ask About Its History and Paperwork

You probably won't get a detailed travel log, but you can still ask about the container's past. Most used containers have been in international shipping service for about 15 to 20 years. Knowing this helps set realistic expectations for its condition and appearance. A reputable seller should be transparent about the container's grade and what that means for its overall wear and tear. Don't hesitate to ask questions about where their containers come from and how they are inspected before being sold. This conversation can tell you a lot about the quality of both the container and the supplier.

Plan for Delivery and Site Prep

Before you finalize your purchase, have a clear plan for where the container will go. You'll need a firm, level surface and enough clear space for the delivery truck to maneuver. A good rule of thumb is to have about 65 feet of straight clearance, 12 feet of width, and 16 feet of vertical height. Make sure there are no overhead power lines or low-hanging tree branches in the way. Preparing a gravel pad or concrete footings is ideal for long-term placement. If preparing a permanent spot feels like too big of a commitment, our rent-to-own program offers a flexible alternative while you figure out the perfect long-term setup.

Making It Your Own: Popular Customizations

This is where the real fun starts. A used shipping container is a blank slate, a sturdy steel box waiting for you to give it a purpose. The modifications you choose will transform it from simple storage into a functional, comfortable space tailored to your needs. Whether you’re dreaming of a backyard office, a creative studio, or just highly organized storage, customizations are key. Thinking through these options helps you create a plan and a budget for your project. It's the difference between having a container and having your container. From practical additions like insulation to aesthetic touches like a fresh coat of paint, every choice helps bring your vision to life. The possibilities are vast, ranging from simple, practical additions to complete transformations that make it hard to believe the structure started as a shipping container. Before you get started, it's helpful to think about the end goal. What will you use the space for? How often will you be inside it? Answering these questions will guide you toward the most important modifications for your specific project, ensuring you invest in the features that will provide the most value and enjoyment.

Add Insulation and Ventilation

If you plan to spend any time inside your container, insulation and ventilation are non-negotiable. A metal box gets extremely hot in the summer and cold in the winter. Proper insulation, like spray foam, regulates the internal temperature, making the space comfortable and energy-efficient. Ventilation is just as important for preventing condensation and maintaining air quality. Simple additions like turbine vents or an HVAC unit can make a world of difference, ensuring your storage container is a pleasant and healthy environment for work or relaxation. This step is crucial for protecting anything you store inside, from furniture to electronics, from damage caused by extreme temperatures or moisture buildup.

Install Doors, Windows, and Electrical

To make your container a truly usable space, you’ll need light and power. Adding windows and personnel doors instantly makes the container feel less like a box and more like a room. You can choose from various styles, from simple sliding windows to large glass panels, or add roll-up doors for easy access. A professional electrical installation is crucial for safety, allowing you to have lighting, power outlets, and climate control. These modifications are fundamental to creating a functional office, workshop, or studio out of your 20 FT Used Container. It’s what turns a sturdy shell into a space you can actually live and work in.

Upgrade Flooring, Paint, and Coatings

While used containers are built tough, a few cosmetic upgrades can impact both appearance and longevity. The original marine-grade plywood flooring is durable, but you might want to install vinyl, laminate, or an epoxy coating for a cleaner look and easier maintenance. A fresh coat of paint is one of the easiest ways to personalize your container and make it your own. More than just aesthetics, quality exterior paint provides an extra layer of protection against rust and the elements. You can see how these finishes transform a container by looking at some of our past work for inspiration. These final touches really pull the project together.

Do Used Containers Come With a Warranty?

It’s a fair question. You’re buying something used, so what kind of guarantee do you get? The good news is that when you buy from a reputable supplier, you often get a warranty. Many companies offer a warranty that can last up to five years, which typically covers the container's structural integrity. This is your assurance that the unit you receive will be solid and secure.

However, it’s important to set the right expectations. This warranty usually doesn’t cover cosmetic issues or normal wear and tear. Think of it like buying a used car; a few dings, scratches, or patches of surface rust are part of the deal and don't affect the container's ability to do its job. The primary focus of the warranty is to guarantee the container is functional and protective. At Mann's Cans, we stand by our used 20 ft containers, ensuring you get a quality unit you can depend on.

What Does a "Wind and Watertight" Guarantee Mean?

You’ll see the phrase "wind and watertight" (WWT) everywhere, and it’s the industry standard for a quality used container. This guarantee means exactly what it says: the container is sealed to protect your belongings from wind, rain, and snow. To test this, you can stand inside the container, close the doors, and look for any light coming through the ceiling or walls. No light means no leaks. For the first year, many suppliers will cover repair costs, provide a patch, or even replace the unit if it fails to meet this standard. After that, they may continue to offer support if any issues pop up.

Key Questions to Ask Your Supplier

Before you finalize your purchase, it’s smart to have a list of questions ready. This helps you avoid surprises and ensures you’re making a fully informed decision. Start with the basics, like confirming delivery costs to your location and asking if you can pick it up yourself to save money. If you’re thinking about buying more than one container, ask if they have a dedicated agent for bulk orders who might offer better pricing. It's also a great time to inquire about different payment structures, like a rent-to-own program, which can make the purchase more manageable. Don't be shy; a good supplier will be happy to walk you through all the details.

What Are the Potential Downsides of Buying Used?

Opting for a used shipping container is a fantastic, budget-friendly choice for many projects. But just like buying a pre-owned car, it’s smart to go in with your eyes wide open. Knowing the potential trade-offs helps you make a confident decision and find the perfect container for your needs without any surprises. Let's walk through a few things to keep in mind.

Inconsistent Conditions and Wear

A used container has a backstory. It’s likely spent years traveling across oceans, which means it will show signs of a life well-lived. You should expect to see some dents, dings, and patches of surface rust. These are usually just cosmetic and don't affect the container's structural strength. The color you get is also typically not guaranteed. While a 20 FT Used Container is always inspected to be wind and watertight, its appearance will reflect its history. This isn't an issue for most storage projects, but it's something to be aware of if aesthetics are a top priority.

Dealing with Market Price Changes

If you've been shopping for a container, you might have noticed that prices can fluctuate. Container prices operate a lot like a stock market, influenced by global supply and demand, the cost of steel, and trends in international shipping. A price you see one month might be slightly different the next. This isn't a sales tactic; it's the reality of a global market. The best approach is to understand that prices move, so when you find a container that fits your budget, it’s often a good idea to act. This is also why our rent-to-own program is a popular choice, as it can offer more predictable monthly payments.

Potential Customization Limits

Used containers are a blank canvas, but sometimes that canvas has a few pre-existing textures. While perfect for straightforward storage, their history can occasionally add an extra step to complex customization projects. For instance, a dent might be located exactly where you planned to install a window, requiring some bodywork first. This doesn't mean your dream office or studio isn't possible; it just means you might need to budget extra time or money for prep work. Starting with a 20 FT Brand New Container can simplify things, but with a bit of planning, you can transform any used container into the space you envision.

How to Get the Best Deal on a Used 20ft Container

Finding a great deal on a used container is about more than just the price tag. It’s about getting the best possible value for your money. With a little research and the right questions, you can walk away confident you’ve made a smart purchase. Here are a few strategies I always recommend to friends before they buy, whether they're looking for simple storage or the foundation for a bigger project. These tips will help you feel prepared and in control of the buying process.

Know the Going Rate

Before you start talking to sellers, do a little homework on what containers are currently selling for. Prices can fluctuate based on location and availability, but knowing the general ballpark gives you a huge advantage. For example, you might find that a used 20ft shipping container can start around $1,300 to $1,500. Having a baseline like this helps you spot a fair price and gives you a solid starting point for any conversation. You can check out our own 20 FT Used Container listings to see how they compare and get a feel for current market rates.

Use the Container's Condition to Your Advantage

Let’s be real: a used container has lived a life. It’s traveled across oceans and will likely have some character to show for it, like dents, dings, and a bit of surface rust. That’s completely normal, and it’s why they are significantly more affordable than brand-new units. Instead of seeing these imperfections as a drawback, view them as a talking point. A container with more visible wear might give you some room to discuss a lower price. It’s all part of the process of buying a used container and finding the right one that fits both your project needs and your budget.

Negotiate for Extras, Not Just a Lower Price

While everyone wants to save a few bucks, sometimes the best deal isn’t the lowest price. Think about negotiating for added value instead. A good supplier might be willing to include perks that are worth more than a small discount. For instance, ask about their guarantee policies. Some companies are willing to cover repairs or even swap the container if it doesn't meet the wind and watertight standard you agreed on. You can also ask about delivery options or if they offer flexible payment plans, like a rent-to-own program. These extras can provide peace of mind and make your purchase even better.

Where Should You Buy a Used 20ft Container?

Once you’ve decided a used container is right for you, the next big question is where to get it. This decision is just as important as the container itself, as it can mean the difference between a smooth, successful project and a major headache. Your two main paths are working with a dedicated supplier or buying from a private seller. Let's break down what each of those options looks like so you can make a confident choice.

Finding a Trusted Supplier (Like Us!)

Going with a professional supplier is the most reliable way to buy a used shipping container. A reputable company will have a clear process, stand behind its products, and make your life a whole lot easier. Look for suppliers who offer a direct and transparent look at their inventory, including both new and used 20ft containers. They should be able to answer all your questions about a container's condition and history. A trusted supplier also provides clear guarantees, like ensuring the unit is wind and watertight, and handles the complicated delivery logistics for you. We believe in making the process simple, from selection to delivery, so you can focus on your project.

The Risks of Buying from Private Sellers

It can be tempting to scroll through online marketplaces for a cheap container from a private seller, but that route comes with significant risks. Since these containers have often traveled the world for years, they come with dents, dings, and rust. A private seller has no obligation to guarantee the container's condition, so you could end up with a leaky or structurally unsound unit. What you see in a few photos might not be what shows up at your property. Plus, you’re usually on your own for arranging transportation, which is a complex and expensive task. Without a warranty or any post-sale support, a private sale can quickly turn a bargain into a costly mistake.

Related Articles

• What to Inspect Before Buying a Used Unit?

• 20 FT Used Container | Mann's Cans

• How to Maintain Containers for Long Life?

• How to Upgrade Your Existing Container?

• How Much Does a 20ft Container Cost?

Frequently Asked Questions

Will my used container have rust, and should I be worried about it? You should expect to see some rust on a used container, but it's almost never a cause for concern. These containers are made from Corten steel, which is designed to develop a stable, rust-like outer layer that protects the steel from deeper corrosion. What you want to avoid is severe, flaky rust that signals a structural problem. A quality supplier inspects every unit to ensure any rust is purely cosmetic, so you get a container with character that is still completely sound.

What's the real-world difference in cost between buying and the rent-to-own option? Buying a container outright is a straightforward, one-time investment that makes sense if you have the budget ready. The rent-to-own program, on the other hand, is designed for flexibility. It breaks the cost down into manageable monthly payments, which is great for managing cash flow or if you're not ready for the full purchase price upfront. You get the container you need right away, and every payment you make goes toward owning it completely.

How much space do I actually need for delivery? This is a great question because site prep is key. For a 20ft container, you'll need a firm, level spot for it to sit. More importantly, the delivery truck needs room to maneuver. A good rule of thumb is to have about 65 feet of straight, unobstructed clearance for the truck to back in and place the container. Also, be sure to look up and check for at least 16 feet of vertical clearance, clear of any tree branches or power lines.

Can I really use a container as a backyard office year-round? Absolutely, but it requires a few key modifications to be comfortable. On its own, a steel box will get very hot in the summer and cold in the winter. To make it a true four-season workspace, you will need to add insulation (spray foam is a popular choice) and some form of ventilation or climate control. Once you add windows for natural light and run electrical for your computer and lights, you'll have a comfortable and private office space.

What's the single most important thing to check before buying a used container? If you only check one thing, make sure it's watertight. The easiest way to do this is to step inside the container on a sunny day and have someone close the doors. After your eyes adjust to the dark, look carefully at the ceiling and walls. If you see any pinpricks of daylight, that's a potential leak. A reputable supplier will always guarantee their containers are "wind and watertight," and this simple test is the best way to confirm it.