
Storage container covers are a great way to secure your storage needs, and with the right solution, you can keep your belongings safe and protected from the elements.
You can choose from a variety of storage container cover solutions, including waterproof covers that can withstand heavy rain and snow.
These covers are designed to fit snugly over your storage container, preventing moisture and debris from getting inside.
They're also a great way to keep pests and rodents out, which can be a major problem for stored goods.
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Design and Construction
The SteelMaster team has decades of experience helping customers plan and design their container cover buildings.
Before starting your project, it's helpful to do some planning to understand the construction so that the roof system fits your exact needs.
Creating the Pattern
Creating the pattern is a crucial step in making a cloth cover. It involves figuring out how much fabric is needed to cover the top of the container.

To start, place the container upside down against the fabric and trace an outline of the top. This will give you a rough idea of the shape and size of the fabric needed.
Working with a square container makes it easier to create the pattern, as you can simply line up the top and side of the container with the pre-drawn lid outline.
Fully Enclosed
If you're looking to create a fully enclosed space with your container cover, there are a few options to consider. One way to achieve this is by using prefabricated steel endwalls on both ends.
These endwalls can give your building a more conventional appearance, which may be desirable if you want your container cover to blend in with the surrounding architecture. Prefabricated steel endwalls can be used to create a fully enclosed space.
You can also add garage doors or other openings to the endwalls as needed, which can be a convenient feature if you plan to use the space for storage or as a workspace. Adding a garage door can also improve accessibility to the space.
Here are some benefits of using prefabricated steel endwalls for a fully enclosed space:
- Prefabricated steel endwalls can be used for a more conventional building appearance
- Offers added security/protection for items inside of the structure
- Can add garage door or other openings needed to endwalls
Ribbed Roof Bows

Your container may already be equipped with roof bows that support the tarp cover. Please note that we do not supply these ribs.
Roof bows are a crucial component of your container's design, providing structural support to the tarp cover. They come pre-installed on your container.
The ribs are designed to distribute the weight of the tarp evenly, preventing it from sagging or collapsing under heavy loads. This ensures a secure and watertight seal.
In some cases, you may need to add additional support to your roof bows to ensure they can handle heavy loads or harsh weather conditions.
Materials and Features
Storage container covers come in a variety of materials, each with its own set of features.
For heavy-duty applications, an 18oz vinyl material is a great choice. It's waterproof, rot-proof, and shrink-proof, making it perfect for outdoor use. This material is also reinforced with scrim for added durability.
One of the key benefits of this material is its fire retardant properties. It meets NFPA and CFM fire retardant standards, providing an extra layer of safety.
The material is also designed for a clean and crisp appearance, with finished edges that look great.
Here are some key features of the 18oz vinyl material:
- Temperature range: -20° F to 160° F
Safety and Ratings

Safety and Ratings are crucial when it comes to choosing the right storage container cover. The good news is that ALCO covers have got you covered, literally.
The ALCO cover is rain-rated, which means it provides excellent protection against the wettest climates. It's made of 18oz Vinyl, a heavy-duty material that's built to last.
The cover's warranty is a reassuring 5 years, giving you peace of mind in case anything goes wrong. It's also UV rated, which means it can withstand harsh sunlight.
Here's a quick rundown of the cover's ratings:
Wind-Rated
Wind-Rated products are designed to withstand extreme weather conditions, as seen in ALCO covers that provide wind protection for a wide range of climates.
The wide range of climates that ALCO covers can handle is a testament to their durability and effectiveness in harsh weather conditions.
ALCO covers are built to last, and their wind-rated design ensures they can protect your belongings from the elements, no matter where you are.
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Rain-Rated
Rain-Rated products are designed to withstand the harshest weather conditions. The ALCO covers, for instance, are made from 18oz Vinyl - Heavy Duty material, ensuring they can handle even the wettest climates.
One of the key features of these covers is their waterproof design, which is a must-have for anyone living in an area prone to heavy rainfall. The warranty on these covers is a reassuring 5 Years, giving you peace of mind.
If you plan to use your cover in harsh ocean environments, you're in luck - they're Ocean Rated, making them perfect for beachside homes or boats.
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Safeguard Contents and Adhere to Rules
Shielding your shipping container is crucial for protecting its contents and adhering to transportation rules. Covering a shipping container helps shield its contents from exposure to rain, snow, and other weather conditions.
A tarp can add an extra degree of security by shielding the contents from prying eyes, which is especially important if the container must go through high-crime or high-theft risk areas. This can give you peace of mind knowing your contents are safer.
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Covering a cargo container can also shield the actual container from harm, such as paint erosion and fading due to UV rays from the sun. This can increase the container's lifespan and save you money in the long run.
Many shipping companies require that containers be covered with a tarp during shipment to prevent debris from escaping and causing damage or accidents on the road. This is a standard rule that's in place to ensure safe transportation.
Here are some key benefits of covering your shipping container:
- Protects contents from weather conditions
- Adds an extra degree of security
- Shields the container from harm
- Meets shipping company requirements
Components and Accessories
Storage container covers are a great way to protect your belongings from the elements. You can choose from a variety of materials, including breathable fabrics and waterproof vinyl.
Breathable fabrics, such as mesh or canvas, allow for airflow and moisture transfer, helping to prevent mold and mildew growth. This is especially important for storing items like clothing and bedding.
Waterproof vinyl, on the other hand, provides a tight seal and can be easily cleaned with soap and water. It's a great option for storing items like tools and equipment.
Some storage container covers also come with additional features, such as straps or buckles, to secure the cover in place.
Roof Mounting Options

When working with shipping containers, one of the most important considerations is how to mount a roof. This can be done in a few different ways, depending on your specific needs and the type of project you're working on.
For most projects, a roof can be attached to either the inside edges or outside edges of the two containers, referred to as “inside mounts” and “outside mounts”. Inside mounts can be a good option if you want to add endwalls and enclose space without obstructing the view from the inside.
Outside mounts are a better choice if you need to completely cover the containers, allowing for extra dry storage on top of conex boxes. This setup is ideal for large industrial-scale projects that require a lot of storage space.
Roof mounting options can also include attaching a roof on top of stacks of two shipping containers. This is a great option for projects that require a lot of storage space and can be used in conjunction with inside or outside mounts.
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Tie-Down Grommets

Tie-Down Grommets are a type of cover that has grommets at the corner and along the sides.
These grommets are used to fasten to the lashing bars or rings of the container.
TIR cables are used to secure the covers, and it's worth noting that ALCO does not supply the TIR cables.
TIR stands for “Transports Internationaux Routiers”, a customs convention for the international transportation of goods.
TIR cables are commonly used in the open-top containers and truck tarpaulin industry.
Benefits and Options
Our shipping container covers offer numerous benefits, including weather resistance, which protects your containers and contents from harsh weather conditions like heavy rain, snow, and strong winds.
With a tailored solution, you can choose a cover that fits your specific needs, and we can design it to fit various container sizes and configurations for a seamless and secure fit.
Our covers are designed for effortless setup, which means you can quickly and efficiently assemble them, minimizing downtime and labor costs.
The benefits of our shipping container covers can be seen in their versatility, making them suitable for a wide range of applications, from temporary storage solutions to permanent structures.
Here are some of the key benefits of our shipping container covers at a glance:
- Weather Resistance
- Tailored Solutions
- Effortless Setup
- Versatility
- Long-Term Durability
Advantages

Our shipping container covers offer numerous advantages that make them an excellent choice for various applications. They boast a remarkable strength-to-weight ratio, making them incredibly durable.
One of the standout features of our container covers is their ability to withstand harsh weather conditions. They can resist heavy rain, snow, and strong winds, ensuring your containers and contents remain safe and dry.
Our covers are designed to be easy to install, minimizing downtime and labor costs. The straightforward setup process allows you to enhance your storage solutions without hassle.
Here are some of the key advantages of our shipping container covers:
- Strong - It boasts a remarkable strength-to-weight ratio
- Tear-resistant - Performs in harsh, rugged and extreme conditions
- Water Resistant - Repels water and humidity
- Stays Clean - Rot and mildew resistance and resists staining
These features make our container covers a reliable solution that stands the test of time. They're built to last, with corrosion-resistant properties that ensure long-term durability.
Sizes to Fit Needs
SteelMaster offers container covers in a range of widths to suit your project requirements, from 20' to 60' wide.
The company provides various options to ensure a perfect fit, including arch style and straight wall style container covers.

You can choose from different widths such as 20', 25', 30', 35', 40', 45', 50', 55', and 60'.
Narrower or wider buildings may require additional engineering considerations.
Here are some common size options:
- 20′ – 25’ wide
- 7 – 9′ roof, plus height of containers
Container covers can be created to be any length, making them versatile for various projects.
SteelMaster's container covers are designed to accommodate weather conditions, including heavy rains and snow loads.
Practical Considerations
When you're reimagining unused space with a container cover, you'll want to consider the structural benefits. The lack of beams, trusses, or interior supports means a completely open space to transform.
This open layout can be a game-changer for businesses looking to maximize their storage or workspace. You can easily customize the interior to suit your needs.
A key advantage of container covers is the speed of installation, which can be a huge time-saver for businesses that need to get up and running quickly.
Minimal Maintenance
Our products are designed to be low maintenance, which means you'll save time and money in the long run. You can expect to spend less on repairs and replacements.

In fact, our covers require minimal maintenance, which is a big plus for busy people. This is because they're built to last and can withstand normal wear and tear.
By choosing our products, you'll be able to spend your time on more important things, rather than constantly fixing and maintaining them.
Ready to Ship
As your product nears completion, it's time to think about getting it ready for shipping. This is a critical step that requires careful planning to ensure a smooth and efficient process.
Make sure to double-check your inventory levels to avoid stockouts or overstocking. A good rule of thumb is to have at least 20% of your total production on hand to account for returns and defects.
Labeling and packaging are also crucial considerations. Use clear and concise labeling that includes relevant information such as product names, weights, and shipping addresses.
A Simple Practical Roofing Solution
A simple and practical roofing solution for your business is a container cover. It helps to reimagine what would otherwise be unused space and transform it into something more functional like a storage area or covered workspace. The lack of beams, trusses, or interior supports means that you will have a completely open space to transform in any way you’d like.

Container covers are designed to be low maintenance, saving you time and money in the long run.
Our shipping container covers are engineered to withstand harsh weather conditions, including heavy rain, snow, and strong winds.
You can choose from a range of customizable options to meet your specific needs, including tailored solutions for various container sizes and configurations.
Here are some key features of our shipping container covers:
- Weather Resistance
- Tailored Solutions
- Effortless Setup
- Versatility
- Long-Term Durability
Made from high-quality materials, our container covers are built to last, providing you with a reliable solution that stands the test of time.
Frequently Asked Questions
What is the best way to store clothes in storage container?
Store clothes in plastic-lidded containers to keep them dry and secure, and consider acid-free boxes and cedar balls for delicate items and extra freshness.
Sources
- https://www.alcocovers.com/product/shipping-container-covers/
- https://roccofellasteel.ca/shipping-container-covers/
- https://makecraftgame.com/2023/09/13/container-cloth-cover/
- https://www.torosteelbuildings.com/steel-building-types/container-covers/
- https://www.steelmasterusa.com/quonset-huts/kits/shipping-container-cover-roofs/
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