Expert Advice on Shipping Container Maintenance and Repair

Shipping containers are built to stand the test of time, after all, their first use case was transporting goods across oceans and tackling harsh weather conditions. However, this longevity is not possible without essential maintenance and repairs. 

Typically made from steel and marine plywood, shipping containers start their life with robust materials. Like anything, these materials need to be well looked after to ensure they stay in the best condition for a long time. 

Learning the steps you need to take to ensure your shipping container lasts as long as you need it to will help you make the most from your investment, no matter what you’re using your container for. 

Benefits of shipping container maintenance and repair

Maintaining and repairing your shipping container is not just essential for longevity, there are many other advantages to looking after your unit. One of the key benefits is cost efficiency. By regularly maintaining and repairing your container, you can avoid costly replacements while extending the lifespan of your unit. 

Being conscientious in your approach to shipping container repair and maintenance is also beneficial for companies that rely on them for transportation, whether you’re a shipping business or the person on the receiving end of the journey. Ensuring your container is maintained to a high standard can help you ensure goods are transported safely and securely, reducing the risk of damage and loss, which can be expensive to rectify. 

Proper maintenance and repair works can also improve the overall efficiency of the shipping process, supporting faster and more reliable delivery times. In addition, this approach helps you comply with safety regulations to maintain the integrity of the shipping industry. 

How long do shipping containers usually last?

The lifespan of a shipping container largely depends on how you look after it. It’s possible for shipping containers to last for up to 40 years, and sometimes longer, with the right repair and maintenance plans in place. To get the most life out of your shipping container, it’s vital that you regularly inspect it and keep up with any repair works before they become more problematic. 

10 tips for maintaining shipping containers

We know that shipping container maintenance is critical for the efficient, safe, and cost-effective transportation of goods around the world. But maintenance and care are also vital for shipping containers used for other applications, such as home projects or business premises. 

Following our simple maintenance steps can help ensure that shipping containers continue to deliver their primary service, and other use cases, effectively and safely. 

1. Inspect the ground

Whether you’re using a shipping container for storage, transportation, or a bespoke project, the ground is the first aspect to consider when thinking about proper maintenance. If your shipping container was delivered on a softer surface like soil, gravel, or clay, you may run into drainage problems.

If this occurs, your container could settle over time and shift on an uneven surface, resulting in access issues. To rectify this problem, containers can be re-levelled with a jack and cement blocks or railroad ties underneath. 

However, prevention is always better than cure, so we recommend placing your container on a solid, well-drained surface from the beginning. There are several ways to prepare the foundation for your shipping container, but getting this right from the start will make future maintenance much easier. 

2. Get secure anchoring in place

If your container is situated outside, it’s important to put secure anchoring in place to avoid any container movement. The container should be firmly anchored to the ground or foundation it is placed on. By doing this, you can prevent the container from shifting during harsh environmental conditions.

This is critical because weather damage can significantly impact both the security and structural integrity of your shipping container, leading to more repairs and maintenance work.

3. Look after the doors

Arguably one of the most important elements of a shipping container to look after, shipping container doors are prone to getting damaged due to their frequent use. To maintain the functionality of your container doors, regular lubrication of the door handles, locks, and hinges should be undertaken to ensure they work correctly. 

Additionally, your regular inspections should include the door seals which can be prone to wear and tear. These can be replaced if signs of damage are showing.

4. Inspect & treat surface rust

Shipping containers are made with Corten steel which has a high level of corrosion resistance, however, this doesn’t mean containers can’t succumb to corrosion or rust. Corten steel can only slow corrosion, so it’s vital to regularly inspect your container for any signs of rust.Widespread rust is often one of the most common reasons for steel shipping containers to stop fulfilling their purpose, whether you’re using it for storage, shipping, or something else. As soon as you see rust forming on your container, it’s time to take action. The best way to remove rust from a shipping container is by wire brushing it before applying a coat of primer and paint made for metal.   

5. Inspect and re-caulk weather stripping

When containers are left outside, the weather stripping around the doors can crack or peel. It’s vital that you check your stripping regularly to ensure your container stays wind and water tight. Annual checking is usually recommended, and if needed, the entire weather strip can be replaced or filled with caulk. 

6. Clean it regularly

Ensuring your container stays clean is an essential part of shipping container maintenance. Regular cleaning means keeping your unit free from dirt or debris which could cause damage in the long term. At minimum, you should sweep the interior of your container regularly and use a mild detergent with water to wash the exterior. 

For more thorough cleans, you’ll want to use smaller tools and cleaning equipment to ensure smaller nooks and crannies are free from dirt. Be careful with abrasive cleaners though, as some products can damage the surface of your container, potentially damaging its structural integrity. 

7. Keep the doors closed 

It might sound obvious, but keeping the doors of your container closed when not in use can really help to maintain the integrity and longevity of your container. By keeping the doors closed, you can avoid excess moisture from entering the container. This is important because high levels of moisture can potentially rot any plywood flooring you have inside. 

8. Avoid excessive weight on the roof

While large shipping containers can hold a lot of weight, it’s a good idea to avoid excessive weight on the roof of your container unless it’s planned and installed correctly. For example, your container won’t last very long if you just shove heavy items across the top of it. If you do need to store items on top, or add another container on top, you need to ensure the four corner posts carry the weight. 

9. Remove debris, water, and ice from the roof 

Standing water and debris are bad news when it comes to shipping containers. Even with a robust Corten steel shell, standing water and debris can still create rust on the roof of a container. As part of your maintenance plan, you should ensure you sweep the roof, removing water and debris to avoid holes forming.

10. Protect it from frost

Just as you should protect your container from any harsh weather conditions, frost is no exception. Your winter maintenance plan should include frost protection to make sure your container doesn’t succumb to damage caused by frost. We recommend you monitor your heaters, ensure any pipes are insulated, and check your water sources to prevent frost damage.