So, you’re thinking about buying a used shipping container? That’s a smart move for lots of projects, from storage to building. But before you hand over your cash for a container second hand for sale, you really need to give it a good once-over. These things have traveled the world, and they can have some hidden issues. Trust me, a little inspection now can save you a lot of headaches later. Let’s walk through what to look for.
Key Takeaways
- Always check the outside for dents, rust, and make sure the doors, locks, and seals are in decent shape. This tells you a lot about its overall health.
- Inside, sniff around for weird smells and look for any damage or signs of critters. A clean, solid interior is a good sign.
- Don’t forget the roof. It should be mostly flat, and you shouldn’t see light coming through any little holes.
- Find that CSC plate. It’s like the container’s ID card, giving you info on when it was made, which helps you judge its wear and tear.
- If it’s a special container with refrigeration or electrical stuff, test those parts to make sure they work.
Inspect The Exterior Of Your Container Second Hand For Sale
When you’re looking at used containers, the outside tells a big story. It’s your first chance to spot any major problems before you even think about what’s inside. Give the whole thing a good walk-around. It’s totally normal for these containers to have a few dings, maybe some small patches, and a bit of surface rust, especially if they’ve been around for a while. But you’re looking for anything that seems too serious.
Check For Visible Damage, Rust, And Corrosion
Take a close look at the metal panels. Are there any big dents that look like they’ve pushed the metal way out of shape? What about punctures? Small dents are usually fine, but a deep gouge could be a problem. Rust is also something to watch. Surface rust is common, but if you see rust that’s eating through the metal or looks like it’s flaking off in big chunks, that’s a red flag. It means the metal might be getting weak.
Assess The Condition Of Doors, Locks, And Seals
Open and close the doors. They should move pretty smoothly, not sticking or grinding. Check the locking bars – do they line up correctly? Can you put a padlock on them if there’s no secure lockbox? The rubber seals around the doors are important too. They keep the weather out. If they look cracked, torn, or are missing in places, water can get in.
Inspect The Overall Structure And Framework
Walk around and look at the corners and the edges where panels meet. Are the seams straight? Do you see any cracks in the welds? The frame is what holds the whole thing together, so make sure it looks solid. Sometimes, you might see a container that’s twisted or bent out of shape. That’s a sign of serious structural damage that could make it unsafe.
Remember, a used container has likely seen some action. Minor cosmetic issues are expected, but you’re aiming to avoid anything that compromises the container’s strength or ability to keep the elements out.
Thorough Interior Examination Of A Used Shipping Container
Verify The Absence Of Odors Or Contaminants
When you first step inside, take a good whiff. Any strong, unpleasant smells like mold, mildew, chemicals, or rot are a big red flag. These odors often point to moisture problems, poor ventilation, or past spills that could be hard to get rid of. It’s not just about the smell; these contaminants could also be harmful. If you notice anything off, it might be best to look elsewhere.
Check For Significant Damage Or Signs Of Pests
Give the walls and ceiling a good once-over. Look for any cracks, holes, or water stains that might suggest leaks. A simple way to check for small holes is to close the doors and look for any light peeking through from the outside. If you see light, that means water and wind can get in too. Also, keep an eye out for any droppings or damage that might indicate rodents or insects have made a home in the container. You want a clean slate, not a pest hotel.
Inspect The Flooring Material For Rot Or Soft Spots
Most container floors are made of thick plywood. Walk around on it. You’re looking for any areas that feel soft, spongy, or uneven. These soft spots can mean the wood is rotting, usually from moisture getting trapped. While some minor wear and tear is normal on used containers, significant rot in the floor can compromise the entire structure and be a real pain to fix. Make sure the floor feels solid underfoot.
Evaluate The Roof And Structural Integrity
When you’re looking at a used shipping container, the roof and the overall structure are super important. You don’t want any surprises down the road, like leaks or a frame that’s seen better days. It’s worth taking a good look, even if it means getting a bit dirty.
Ensure The Roof Is Relatively Straight And Free Of Deformations
The roof is basically the shield against the weather. You want it to be as flat as possible. Look from the ground first; you should be able to see if it’s sagging or has weird waves. A roof that’s not straight can collect water, and that’s a fast track to rust and structural problems. Even small dents can be a starting point for corrosion if they’ve been there a while. If you see major warping or deep dents, it might mean the container took a pretty hard hit at some point.
Check Corners And Seams For Cracking Or Exposed Welds
Shipping containers are built with strong welds, especially at the corners and along the seams where different metal panels meet. Give these areas a close look. You’re checking for any signs of cracking in the welds or if the metal itself looks stressed. Exposed welds or cracks are weak points. They can let moisture in, which leads to rust, and they compromise the container’s overall strength. Think of them like tiny entry points for trouble.
Look For Light Penetration Indicating Pinhooles
This is a classic test, and it’s pretty simple. If you can, get inside the container and close the doors as best you can. Then, look around. If you can see any light coming through from the outside, that’s a red flag. Those little spots of light usually mean there are tiny holes, or pinholes, in the roof or walls. Even a small pinhole can let water in, which can cause damage over time, especially if it’s in the roof. It’s a good indicator that the container might not be as watertight as you need it to be.
Understand The Container’s History And Specifications
Review The CSC Plate For Manufacturing Information
So, you’re looking at a used shipping container. Before you get too excited, let’s talk about the CSC plate. This little metal tag, usually found on the outside of one of the doors, is like the container’s ID card. It tells you when and where it was made, and most importantly, if it’s still certified for shipping. You absolutely need to check this plate to make sure the container is structurally sound enough for its intended purpose. If it’s missing or looks tampered with, that’s a big red flag. It should have details like the manufacturer’s name, the date of manufacture, and a unique identification number. It’s also where you’ll find the ‘Maximum Gross Weight’ and ‘Tare Weight’, which are good to know for planning how you’ll move it later.
Assess Wear And Tear Against The Container’s Age
When you look at a container, its age matters. A container that’s only a few years old but looks like it’s been through a war probably wasn’t treated very well. Conversely, a container that’s 15 years old but still looks pretty decent might be a better bet. You’ll see different grades for used containers, like ‘one-trip’ (barely used), ‘cargo-worthy’ (structurally sound for shipping), and ‘wind and watertight’ (basic condition). Try to match what you see with what the seller tells you. A container that’s supposed to be cargo-worthy shouldn’t have major dents that compromise its structure or large rust patches that eat through the metal. Think of it like buying a used car – you check the mileage and the condition to see if the price makes sense.
Consider The Container’s Origin And Potential Exposure
Where has this container been? That’s a question worth asking. Containers that have transported certain types of goods might have lingering odors or residues. For example, a container that hauled chemicals or food products might have smells or stains that are hard to get rid of. If you plan to use the container for something sensitive, like storing furniture or converting it into living space, you’ll want to be extra careful. Ask the seller about its previous cargo. If you can’t find out, or if the smell test (which you should do during your interior inspection) doesn’t pass, it might be best to walk away. Some containers might have also been exposed to extreme weather or rough handling during their shipping life, which could affect their long-term durability.
Test Special Components If Applicable
So, you’ve checked the main shell, the doors, and the roof. But what if your container has extra bits and bobs? If you’re looking at a container that’s meant to do more than just sit there, you’ve got to give those special features a good once-over. It’s not enough for them to just look okay; they need to actually work.
Inspect Refrigeration Units For Functionality
If you’re eyeing a reefer (that’s short for refrigerated container), this is a big one. You can’t just assume it’ll keep things cold. You’ll need to see it powered up.
- Hook it up to power. Make sure it’s connected to a suitable electrical source.
- Set your target temperature. Dial it down to what you’d normally need.
- Give it time. See if it actually reaches and holds that temperature. Listen for any weird noises from the unit.
Don’t skip this step; a non-working fridge unit can be a costly repair.
Verify Electrical Systems Are In Good Order
Some containers are modified with electrical setups for lights, outlets, or other needs. You’ll want to check:
- Visible wiring: Look for frayed wires, loose connections, or shoddy work. It should look neat and professionally done.
- Functionality test: If possible, have the power turned on to test lights, switches, and outlets. Bring a small appliance or a tester if you can.
- Breaker box: Check if it’s present, properly labeled, and looks secure.
Remember, electrical work needs to be safe and up to code. If it looks questionable, assume it needs professional attention.
Ensure Modified Areas Are Properly Sealed
Containers often get modified, maybe with extra vents, windows, or access points. The key here is how well these additions are sealed.
- Check around windows and vents: Look for gaps, cracks, or peeling sealant. Water getting in through these spots is a common problem.
- Inspect any added doors or hatches: Make sure they close tightly and have good weather stripping.
- Look for signs of leaks: Even if the seals look okay, check the surrounding interior for water stains or dampness, which could mean a past or current leak.
Choose A Reputable Company For Your Container Second Hand For Sale
Ask for Photos or Videos If an In-Person Inspection Isn’t Possible
Sometimes, you just can’t get to the container yard to check things out yourself. Maybe you’re buying from a company far away, or your schedule is just too packed. Don’t skip this step just because you can’t be there in person. A good container supplier will be happy to send you detailed photos and even videos of the specific container you’re interested in. Ask them to show you the exterior, interior, doors, seals, and any areas you’re concerned about. If they hesitate or send blurry, unhelpful pictures, that’s a big red flag. It might mean they don’t want you to see something they’re trying to hide.
Understand Container Grades and Conditions
Container companies usually grade their used containers. This helps you know what you’re getting. You’ll often see terms like ‘one-trip’, ‘cargo worthy’ (CW), or ‘wind and watertight’ (WWT). A one-trip container is basically as close to new as you can get, having only made one journey. Cargo worthy means it’s still good enough for shipping, so it’s structurally sound. Wind and watertight means it’ll keep the weather out, but might have more dents or rust. Make sure you know what each grade means and which one fits your needs and budget. Don’t just assume ‘used’ means the same thing from every seller.
Prioritize Due Diligence for a Smart Purchase
Buying a used container is a bit like buying a used car. You wouldn’t buy a car without checking it out, right? The same goes for containers. Look for companies that are upfront about their inspection process and what they guarantee. Ask questions about the container’s history, where it’s been, and what it was used for. A reliable container supplier will have this information readily available. They should also be clear about their return policy or any warranties they offer. If you’re looking for a container for a specific project, like a modification or a special build, talk to them about that too. Some companies specialize in modifications or can point you to someone who does. Remember, a little homework now can save you a lot of headaches later. Whether you’re looking to rent a container or buy one outright, finding the right container supplier is key. They can help you find the perfect fit, whether it’s for simple storage or a more complex project. Don’t be afraid to shop around and compare different container suppliers before making your final decision. Your goal is to find a solid, dependable unit that meets your expectations.
Wrapping It Up
So, you’ve gone through the whole checklist, right? Looking at dents, checking for rust, making sure those doors actually open and close without a fight. It might seem like a lot, but taking that time to really inspect a used shipping container is super important. You don’t want to bring home a lemon, especially when you’ve got plans for it. A little bit of effort now means you’ll have a solid container that’s ready for whatever you throw at it, whether it’s storing your stuff or becoming your new backyard office. It’s all about making sure you get a good deal and a container that’s going to last.
Frequently Asked Questions
What are the most important things to check on the outside of a used container?
When looking at the outside, check for any big dents or holes. Also, keep an eye out for rust, especially on corners and seams, as this can weaken the container. Make sure the doors open and close smoothly and that the seals around them look good.
Why is checking the inside of the container so important?
The inside needs to be clean and free of bad smells, like mold or chemicals, which could mean water damage or contamination. You also want to check for any signs of pests, like droppings, and make sure there are no big holes or cracks in the walls or ceiling.
How can I tell if the roof is in good shape?
Look at the roof from the ground. It should seem pretty flat and not saggy or bent. If you can see light coming through tiny holes in the walls or ceiling when the doors are shut, it means the roof or walls might not be fully sealed and could let water in.
What is the CSC plate and why should I look at it?
The CSC plate is a sticker usually found on the container’s door. It tells you when and where the container was made. Comparing this info to the container’s current condition helps you guess how much wear and tear it has really gone through.
What should I do if I can’t inspect the container myself?
If you can’t visit the container in person, ask the seller to send you clear photos and videos of the exterior, interior, doors, and roof. This way, you can still get a good idea of its condition before you buy.
Are there different ‘grades’ for used shipping containers?
Yes, sellers often use grades like ‘one-trip’ (almost new), ‘cargo-worthy’ (still good for shipping), or ‘wind and watertight’ (good for storage but might have cosmetic issues). Understanding these grades helps you know what to expect in terms of condition and price.
