A container cover is a pre-engineered steel roof that spans between two shipping containers, creating a fully covered, clear-span space underneath. Also called a sea can cover, conex box cover, or shipping container shelter — it protects your equipment, inventory, or workspace from American weather year-round.

Permit requirements vary by state and municipality. In most cases, container covers are considered non-permanent structures, which means they require fewer permits than traditional construction — saving you time, money, and frustration. However, requirements differ depending on your location, land use, and the size of the structure. We recommend contacting your local building department for specifics. CNC Container Covers can provide engineering drawings and load specifications that meet IBC (International Building Code) requirements to support your permit application if required.

CNC Container Covers offers steel container cover kits in widths of 20′, 25′, 30′, 35′, 40′, 45′, 50′, 55′, 60′, 65′, 70′, 75′, and 80′ wide. Any custom length is available — no project is too big or too small. Whether you’re covering two sea cans on a farm or building a large covered workspace for an industrial operation, we have the right size for your application.

Yes. CNC container cover kits are designed for DIY installation with detailed step-by-step instructions included. No heavy equipment or specialized trades are required for most installations. The steel components are pre-engineered and arrive ready to assemble. Many of our customers — farmers, contractors, and business owners across the USA — install their covers themselves or with a small crew, saving significantly on labor costs.

Yes — one of the biggest advantages of a steel container cover is that it’s fully portable and relocatable. Unlike a permanent building, a container cover kit can be disassembled, moved, and reassembled at a new location. For farmers, contractors, and businesses that move between job sites, this is a major advantage. Your shelter goes where your operation goes — no leaving valuable infrastructure behind.

A sea can cover is another name for a container cover — a pre-engineered steel roof system that spans between two standard shipping containers (also called sea cans or conex boxes). The containers act as the walls and the steel roof creates a fully covered, clear-span space underneath. Sea can covers are popular across the USA for agricultural storage, equipment shelters, job site workspaces, and industrial applications. CNC Container Covers specializes exclusively in sea can covers, conex box covers, and shipping container roof kits shipped nationwide.

CNC container covers are built with Galvalume steel — a premium steel coating that is highly resistant to rust, corrosion, and UV damage. With proper installation and minimal maintenance, a steel container cover can last decades in American conditions including heavy snow loads, freeze-thaw cycles, high winds, hurricane exposure, and intense UV exposure. Galvalume steel has been proven in agricultural and industrial applications across North America for over 50 years.

Yes. CNC Container Covers ships steel container cover kits nationwide across the continental USA, with priority service to Texas, California, and Florida. We ship directly to your site — farm, job site, industrial facility, or residential property. No matter where you’re located in the USA, we can get a cover to you.

Unlike general steel building companies that sell container covers as a side product alongside garages, barns, and commercial buildings — CNC Container Covers does one thing and does it better than anyone. Our entire team, engineering capability, and supply chain is focused exclusively on steel container covers, sea can shelters, conex box covers, and shipping container roof kits. When you call us, you’re talking to a specialist — not a generalist who also sold someone a garage last week. That means faster answers, better expertise, and the exact right kit for your application every time.

Container covers are used across virtually every industry in the USA. Farmers use sea can shelters to protect equipment, hay, and livestock feed. Contractors use conex box covers for covered job site storage and workspaces. Oil and gas companies use them for equipment and materials storage on remote sites. Mining operations use portable container covers that can be relocated between sites. Industrial and commercial businesses use them as workshops, warehouses, and covered loading areas. Residential customers use them for garages, hobby shops, and personal storage. If you need covered space fast without permanent construction — a container cover is the solution.

Yes. While container covers are classified as non-permanent structures in most jurisdictions — which reduces permit requirements — they are built to last decades. Galvalume steel construction, engineered snow and wind load ratings, and corrosion-resistant components make CNC container covers a long-term solution. Many customers install their cover once and never move it. The portability is simply an added bonus if your needs ever change.

A standard container cover spans between two shipping containers, which act as the walls of the structure. For larger covered areas, multi-span configurations can connect three or more containers in a row, creating a longer continuous covered space. The right configuration depends on how much covered area you need and the footprint of your site. Contact us to talk through the best layout for your project.

A steel building is a permanent structure built on a foundation with its own walls and roof. A container cover uses shipping containers as the walls and a pre-engineered steel roof system spanning between them. Container covers are faster to install, significantly less expensive, require fewer permits, and are fully relocatable. For anyone who already owns shipping containers or needs covered space without the cost and complexity of a permanent building — a container cover is the smarter, faster, and more affordable solution.

Yes. CNC container covers can be fitted with steel end walls to fully enclose the structure. End walls protect against wind, rain, snow, and blowing debris — turning your container cover into a fully weatherproof workspace or storage facility usable year-round in any American climate. You can choose full end wall enclosure, partial enclosure, or leave it open depending on your application. Door openings and ventilation options are also available.

Lead times vary depending on the size of your order, your location, and current production schedules. CNC Container Covers works to get your kit to you as quickly as possible — most orders ship within a few weeks of confirmed order and payment. Remote locations may require additional shipping time. Contact us when requesting your quote and we’ll give you a realistic delivery timeline for your specific location.

In most cases yes — significantly cheaper. A container cover eliminates the need for a foundation, concrete work, and traditional wall framing since the shipping containers serve as the walls and foundation. You also save on permits, engineering costs, and installation time. For anyone who needs covered space quickly and cost-effectively, a container cover delivers far more value per dollar than a traditional steel building of comparable size.

Yes. Every CNC container cover is engineered to meet the wind load requirements for your specific location in the USA. Wind speeds and exposure categories vary significantly across the country — Gulf Coast hurricane zones, the open Plains, and mountain regions all have different wind design requirements. We factor in your local wind load data when engineering your kit to ensure your cover performs safely and reliably in the conditions you actually face. Don’t settle for a one-size-fits-all solution when your location demands site-specific engineering.

Yes — gutters and downspouts can be added to straight wall cold-formed container covers. Proper drainage manages rainwater and snowmelt runoff, protects the ground around your containers from erosion and water pooling, and keeps the area underneath your cover dry and functional year-round. Note that gutters are not applicable to arch style container covers due to the curved roof profile. Ask us about drainage options when requesting your quote.

A conex box cover is another name for a container cover or sea can shelter — a pre-engineered steel roof system that spans between two conex boxes (shipping containers) to create a fully covered, clear-span space underneath. The term “conex” originated with the US military and is widely used across the country to describe standard intermodal shipping containers. Whether you call it a conex box cover, sea can shelter, container cover, or shipping container roof kit — CNC Container Covers builds and ships them nationwide.

One of the advantages of a container cover is its flexibility when it comes to site conditions. Shipping containers can be leveled using shims, gravel pads, or concrete blocks to compensate for uneven or sloped ground. This makes container covers ideal for rural properties, remote job sites, and agricultural operations across the USA where perfectly level ground isn’t always available. CNC Container Covers can advise on the best approach for your specific site conditions.

A steel container cover is a permanent, engineered structure built to last decades — not a temporary fix. Fabric and tarp shelters deteriorate quickly under harsh weather conditions, are vulnerable to tears from wind, snow load, and UV exposure, and typically need to be replaced every few years. A CNC steel container cover is built with Galvalume steel, engineered to meet your local snow and wind load requirements, and designed to perform year after year with minimal maintenance. When you factor in replacement costs over time, a steel container cover is the smarter long-term investment.

One of the biggest advantages of a container cover is that no concrete foundation is required. The shipping containers themselves act as the foundation and anchor points for the steel roof structure. This dramatically reduces your upfront costs and installation time compared to a traditional steel building. Containers can be placed on compacted gravel, crushed stone, or a level surface — making container covers ideal for farms, remote job sites, and any location where pouring concrete is impractical or cost-prohibitive.

Yes — color customization is available on straight wall cold-formed container covers. You can choose from a variety of steel panel colors to match your existing buildings, equipment, or property aesthetic. Arch style container covers come in standard colors. Ask us about available color options when requesting your quote.

CNC container covers are engineered to attach directly to the shipping containers themselves, which act as the primary anchor points for the entire structure. The steel roof system is bolted or welded to the container frames creating a secure and stable connection. Your site-specific wind load engineering will determine the anchoring requirements for your location — this is factored into every CNC container cover kit we build.

Pricing depends on several factors including width, length, roof style, and your local building requirements. Snow load ratings, wind load specifications, and elevation all affect the engineering of your cover. A farm in Texas has different load requirements than a job site in coastal California. CNC Container Covers builds every kit to meet your site-specific conditions. Contact us for a fast, no-obligation quote — most customers receive pricing within 24 hours.