{"id":3537,"date":"2025-06-02T18:00:49","date_gmt":"2025-06-02T11:00:49","guid":{"rendered":"https:\/\/www.tradecorp-usa.com\/blog\/?p=3537"},"modified":"2025-07-04T11:58:54","modified_gmt":"2025-07-04T04:58:54","slug":"what-are-shipping-contaienrs-made-of","status":"publish","type":"post","link":"https:\/\/www.tradecorp-usa.com\/blog\/what-are-shipping-contaienrs-made-of\/","title":{"rendered":"What are Shipping Containers Made Of? The Answer is Here!"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">What are shipping containers made of, and how strong can they be?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The questions are often asked since the use of shipping containers in international trade has been very common these days. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">The thickness of the container walls, its materials, and its size have been carefully calculated and meet the specified standards.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Durability and the ability to tolerate different weather conditions are very important when traveling abroad. This means that only certain materials can be used to fight the sea weather.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Containers must be able to withstand high pressure when stacked and moved by cranes at the port. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Each material plays a critical role in determining the durability, functionality, and overall suitability of a shipping container for different types of cargo, ensuring that it can withstand the demands of transportation and storage.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Following the question of \u201cWhat are shipping containers made of, and how strong can they be?\u201d, read this article to find out the answer!<\/span><\/p>\n<h2><b>What are Shipping Containers Made of?<\/b><\/h2>\n<figure id=\"attachment_3541\" aria-describedby=\"caption-attachment-3541\" style=\"width: 1014px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-3541\" src=\"https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/06\/Rear-left-side-and-roof-overview.jpg\" alt=\"A shipping container from Tradecorp USA\" width=\"1024\" height=\"668\" srcset=\"https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/06\/Rear-left-side-and-roof-overview.jpg 1024w, https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/06\/Rear-left-side-and-roof-overview-300x196.jpg 300w, https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/06\/Rear-left-side-and-roof-overview-768x501.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-3541\" class=\"wp-caption-text\">A shipping container from Tradecorp USA<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">Almost all shipping and storage containers, especially those used to transport heavy loads, are made of corten steel. This steel is known for its strength and has earned the nickname \u2018weathering steel\u2019. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">When exposed to other external elements, corten steel containers develop a thin layer of oxidation on their surface. This protective layer prevents further rusting, thus acting as an additional barrier.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This type of steel can be used to make corrugated walls, doors, frames, and cross members, among other components of a marine container. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">The strength, durability, and recyclability of the material further enhance its appeal for use in marine containers.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">However, the main limitation of steel is that it conducts heat and cold quickly, making it difficult to regulate the temperature inside. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">This can be a problem when transporting products that need to be kept at a certain temperature unless modifications are made to the container that will ensure the temperature is regulated inside the container.<\/span><\/p>\n<h2><b>Cargo Container Components<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Shipping containers involve several key components that contribute to the overall strength of the unit. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Each part must be manufactured and designed to provide the best possible strength and effectiveness. Here are some of the components, including:<\/span><\/p>\n<figure id=\"attachment_3540\" aria-describedby=\"caption-attachment-3540\" style=\"width: 1014px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-3540\" src=\"https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/06\/CSC-Plate.jpg\" alt=\"CSC Plate of a shipping container\" width=\"1024\" height=\"768\" srcset=\"https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/06\/CSC-Plate.jpg 1024w, https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/06\/CSC-Plate-300x225.jpg 300w, https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/06\/CSC-Plate-768x576.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-3540\" class=\"wp-caption-text\">CSC Plate of a shipping container<\/figcaption><\/figure>\n<h3><b>CSC Plate<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">One of the important features of a shipping container is the CSC (Container Safety Convention) plate. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">The presence of this plate indicates that the container is safe and structurally sound and complies with international safety standards. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">It ensures that all shipping containers used for international shipping are safe, functional, and meet certain design and construction standards.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The CSC plate also provides important information about the shipping container, including an identification number, date of manufacture, weight capacity, and inspection details, as well as information about structural safety and testing performed.<\/span><\/p>\n<h3><b>Container Doors<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Container doors are usually located at one end of the container and are designed to provide easy access into the container. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Although on containers such as tunnel containers or open-sided containers, they can be found at both ends or on the sides of the container.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Each unit is equipped with a sturdy locking system to ensure the security of the goods inside. The watertight seal on the door ensures that no water enters the container during shipping.<\/span><\/p>\n<h3><b>Locking System<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">The locking system is a critical component of container security. This mechanism ensures that the container door remains tightly closed and secure during transportation. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Typically, this locking system is made of strong steel and has anti-burglary features to prevent theft or unauthorized access.<\/span><\/p>\n<figure id=\"attachment_3542\" aria-describedby=\"caption-attachment-3542\" style=\"width: 1014px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-3542\" src=\"https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/06\/Interior-1.jpg\" alt=\"Container's wall and floor\" width=\"1024\" height=\"768\" srcset=\"https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/06\/Interior-1.jpg 1024w, https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/06\/Interior-1-300x225.jpg 300w, https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/06\/Interior-1-768x576.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-3542\" class=\"wp-caption-text\">Container&#8217;s wall and floor<\/figcaption><\/figure>\n<h3><b>Container Wall Thickness<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">The container wall is usually made of corten steel, which is known for its resistance to weather and corrosion. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">This material can form a protective layer when exposed to weather elements, preventing further damage due to rust. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">These walls often have a corrugated design to add structural strength and flexibility in withstanding external pressure.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The thickness of the steel container wall varies quite a bit, depending on the section and the structural efficiency required. Doors are usually 2-2.5 mm thick, while walls and roofs are 1.6-2 mm thick. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">To support a fairly large load, the floor frame and cross members are made of thicker steel, usually 4 to 4.5 mm.<\/span><\/p>\n<h3><b>Floor<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">The flooring of a shipping container must be able to withstand heavy loads and a variety of cargo, which means it must be made from strong, durable materials. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">It is usually made of hardwood coated with anti-slip and weather-resistant materials.\u00a0<\/span><\/p>\n<h3><b>Watertight Seals<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Watertight seals are used around the doors and joints of the container to prevent water from entering. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">This seal feature is essential to protect the goods inside the container from water damage, especially during challenging sea voyages.<\/span><\/p>\n<figure id=\"attachment_3112\" aria-describedby=\"caption-attachment-3112\" style=\"width: 1014px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-3112\" src=\"https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/04\/steve-johnson-0_5F8l2ybRc-unsplash-1.jpg\" alt=\"Container coating\" width=\"1024\" height=\"576\" srcset=\"https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/04\/steve-johnson-0_5F8l2ybRc-unsplash-1.jpg 1024w, https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/04\/steve-johnson-0_5F8l2ybRc-unsplash-1-300x169.jpg 300w, https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/04\/steve-johnson-0_5F8l2ybRc-unsplash-1-768x432.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-3112\" class=\"wp-caption-text\">Container paints and coating<\/figcaption><\/figure>\n<h3><b>Paints and coatings<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">While the materials chosen for shipping container construction are determined by their durability and function, they also require maintenance for optimal protection and longevity. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Most shipping containers are exposed to harsh environmental conditions, including salt water and extreme temperatures, so special paints and coatings are needed to help withstand these conditions.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">You can use specific paint or coating depending on the requirements of the container. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">For example, epoxy resins are used because of their strong resistance to water and chemicals, polyurethane paints offer optimal UV protection, zinc-rich primers are used to prevent rust, anti-corrosion paints are best for marine environments, and thermal insulation coatings can regulate internal temperatures.<\/span><\/p>\n<h3><b>Insulation<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">With the potential for extreme weather conditions during transport, it\u2019s important to insulate shipping containers. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Maintaining proper temperature control is essential for transporting temperature-sensitive goods, such as refrigerated products.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">You can use specialty insulation materials, including polyurethane foam, polystyrene foam, fiberglass, vacuum-insulated panels, and reflective materials. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Each of these materials can minimize heat transfer and maintain a consistent internal temperature.<\/span><\/p>\n<h3><b>Corner Castings &amp; Corner Posts<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">You will need strong and reinforced corner castings and corner posts when you are about to stack your shipping container. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">These corner posts are welded to the I-beams of the floor framing, and when the containers are stacked, the corner posts align to ensure safe stacking.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Corner posts are also important for ease of transportation. On each corner post, there is a fitting with an opening on the outside. This opening helps lift the container or secure it to a ship, truck, rail car, or other container.<\/span><\/p>\n<h3><b>Roof panels<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Like walls, roof panels also have a metal structure. Roof panels are installed on top of the shipping container and ensure that it is weatherproof. If the container is used for stacking, the roof is usually made of a stronger material such as steel.<\/span><\/p>\n<h3><b>Twist locks<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Because shipping containers will likely come into contact with other shipping containers, shipping containers usually come with a standard connection system, known as twist locks.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">These mechanical locking devices are firmly attached to the corners of a shipping container, allowing it to be securely connected to ships, trucks, container trains, and other containers. Twist locks can also help lift containers with cranes.<\/span><\/p>\n<figure id=\"attachment_3543\" aria-describedby=\"caption-attachment-3543\" style=\"width: 723px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-3543\" src=\"https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/06\/Left-side.jpg\" alt=\"Container's forklift pocket\" width=\"733\" height=\"453\" srcset=\"https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/06\/Left-side.jpg 733w, https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2025\/06\/Left-side-300x185.jpg 300w\" sizes=\"(max-width: 733px) 100vw, 733px\" \/><figcaption id=\"caption-attachment-3543\" class=\"wp-caption-text\">Container&#8217;s forklift pocket<\/figcaption><\/figure>\n<h3><b>Forklift pockets<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Moving a shipping container is no easy task, even when it\u2019s empty. That is why shipping containers have two forklift pockets or slots along the bottom. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">They allow the forks of a forklift to secure, balance, or lift the container safely. This component of a shipping container is an important design element, making it easier for handlers to stabilize and move it efficiently.<\/span><\/p>\n<h2><b>Conclusion<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">From the article above, the answer to \u201cCan I put a shipping container on my property if I live in Texas?\u201d is corten steel, a special high-strength, weather-resistant steel alloy. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">This material gives them their renowned durability and makes them ideal for long-term use in harsh environments like sea transport, storage yards, or building conversions.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">If you would like to buy shipping containers to ship or store your products, buy them from a trusted provider such as Tradecorp. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Tradecorp is a reliable shipping container sales, purchase, rental, and modification service company. Tradecorp provides modification and custom shipping container services by adding windows, doors, walls, and roof insulation.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Our experienced staff is ready to help you arrange the shipping of your shipping container to your requested location. Fill out our<\/span><a href=\"https:\/\/www.tradecorp-usa.com\/quote\/\"><span style=\"font-weight: 400;\"> quote form<\/span><\/a><span style=\"font-weight: 400;\"> to buy or rent from us!`<\/span><\/p>\n<p><a href=\"https:\/\/www.tradecorp-usa.com\/quote\/\"><img decoding=\"async\" class=\"size-large wp-image-810 aligncenter\" src=\"https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2022\/07\/banner-shipping-containers-for-sale-1024x222.jpg\" alt=\"shipping containers for sale, storage containers for sale\" width=\"1024\" height=\"222\" srcset=\"https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2022\/07\/banner-shipping-containers-for-sale-1024x222.jpg 1024w, https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2022\/07\/banner-shipping-containers-for-sale-300x65.jpg 300w, https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2022\/07\/banner-shipping-containers-for-sale-768x166.jpg 768w, https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2022\/07\/banner-shipping-containers-for-sale-1536x333.jpg 1536w, https:\/\/www.tradecorp-usa.com\/blog\/wp-content\/uploads\/2022\/07\/banner-shipping-containers-for-sale.jpg 1829w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>What are shipping containers made of, and how strong can they be? The questions are often asked since the use of shipping containers in international &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"What are Shipping Containers Made Of? The Answer is Here!\" class=\"read-more button\" href=\"https:\/\/www.tradecorp-usa.com\/blog\/what-are-shipping-contaienrs-made-of\/#more-3537\" aria-label=\"More on What are Shipping Containers Made Of? The Answer is Here!\">Read More<\/a><\/p>\n","protected":false},"author":15,"featured_media":3544,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[79],"tags":[],"class_list":["post-3537","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-containers","resize-featured-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What are Shipping Containers Made Of? 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