Bulk Storage

Bunkersilo overkapping - header.jpg

Keep bulk storage dry, protected and organised

Bulk storage is all about keeping materials protected, accessible and easy to manage. Raw materials, sand, gravel, compost, recycling materials or other bulk goods are often stored outdoors in bays made from concrete blocks or retaining walls. Without a roof, these materials are exposed to rain, wind and contamination, which can affect quality, weight and handling.

With a Kroftman bunker silo shelter, you can turn existing storage bays into a covered storage area for bulk goods. The shelter is tailored to your site, material flows and setup with concrete blocks or concrete walls. This helps protect your materials, keep your site organised and make better use of your bulk storage area without investing in a permanent building.

Each structure is calculated according to EN 13782 and supplied with technical documentation. This gives you a practical shelter for bulk storage while also showing that the structure is technically sound.

Bulk Storage

Quote

Endless possibilities

You configure the shelter to match your needs, so it simply does what it’s meant to do in practice.

No two situations are the same. That’s why our shelters can be expanded with various options, tailored to how you use them.

Get inspired
Portretten_2026_Nicolette Lammers_Sales_casual.jpg Portretten_2026_Mariëlle Berndsen_Sales_casual.jpg Portretten_2026_Sven Kasteel_Sales_casual.jpg
Want to learn more?

Our product specialists are happy to help you choose the right container shelter for your situation.

What is a shelter for bulk storage?

A shelter for bulk storage is a strong covered structure that helps protect loose bulk goods from rain, wind, snow and contamination. You use the shelter when materials such as sand, gravel, compost, wood chips, recycling materials or other raw materials are stored outside in bays made from concrete blocks or concrete walls.

For many companies, this storage setup already works well: materials stay separated, loaders can access the bays and the site remains organised. Without a shelter, however, the materials remain exposed to the weather. As a result, they can become wet, heavier or more difficult to process.

At Kroftman, the solution consists of a modular bunker silo shelter for professional use. The shelter is adapted to the existing setup with concrete blocks or concrete walls, and to the way materials are delivered, stored and processed. With the shelter, you receive the Buildbook free of charge, including technical documentation, so the structure can be professionally assessed.

When is a shelter for bulk storage useful?

For many companies, the need for a shelter does not start with the idea of building a hall, but with a practical problem on site. Bulk goods are stored outside, become wet or get blown around, while the storage area still needs to remain accessible for machines and equipment.

A bunker silo shelter is useful, for example, when:

  • sand, gravel, compost or wood chips are stored outside

  • bulk goods need better protection from rain and contamination

  • materials should not become unnecessarily heavier due to moisture

  • existing bays made from concrete blocks or concrete walls need to be used more effectively

  • different material flows need to remain clearly separated

  • loaders or trucks need to maintain good access

  • delivery, storage and processing need to be less dependent on the weather

  • building a permanent hall is too expensive, too slow or unnecessary

In these situations, a Kroftman bunker silo shelter helps make existing bulk storage more practical to use. You add protection where it is needed, without losing the accessibility of the storage bays.

Key benefits

  • Protects bulk goods from rain, wind, snow and contamination

  • Suitable for sand, gravel, compost, wood chips, recycling materials and raw materials

  • Makes storage bays made from concrete blocks or concrete walls more usable

  • Helps keep materials drier, cleaner and easier to process

  • Limits unnecessary weight increase caused by rainwater

  • Keeps bulk storage accessible for loaders and trucks

  • Modular design, adapted to the existing setup

  • Practical solution without immediately building a permanent hall

  • Suitable for temporary and long-term use

  • Buildbook with technical calculations and drawings available

Who is a bunker silo shelter suitable for?

A bunker silo shelter is suitable for companies that store loose materials outside in bays made from concrete blocks or concrete walls. Often, the storage structure is already in place, but extra protection is needed to keep materials in better condition and use the site more efficiently.

We often see this need in:

  • recycling companies

  • composting companies

  • construction and infrastructure companies

  • storage and transshipment locations

  • green waste processing companies

  • civil engineering companies

  • industrial companies with loose material flows

  • companies that store sand, gravel, compost, wood chips or recycling materials

The application differs per company, but the question is often the same: how do we protect our bulk goods better, without immediately building a complete hall?

Determining the right size and setup

For many customers, the question starts with an existing storage location. Concrete blocks, concrete walls or storage bays are already in place, but the materials are still stored outside without protection. The next step is translating that situation into the right size, span, height and accessibility.

Important questions include:

  • Which bulk goods do you want to protect?

  • How wide and deep are the storage bays?

  • Will the shelter be installed on concrete blocks or concrete walls?

  • How much free height is needed for storage and equipment?

  • Do loaders or trucks need to maintain good access?

  • Is it for one storage bay or multiple bays next to each other?

  • Is the shelter needed temporarily or for long-term use?

  • Are there technical, HSE or site-specific requirements?

Kroftman supplies different sizes and versions. Thanks to the modular design, there are several options to adapt the bunker silo shelter to the existing storage bays, material flows and available space on site.

Structure, documentation and permits

A shelter for bulk storage must work in practice, but it also needs to be technically assessable. Kroftman bunker silo shelters are designed for professional use and are calculated in accordance with EN 13782. With the structure, you receive the Buildbook free of charge, including technical calculations and drawings.

Depending on the chosen version, the bunker silo shelter consists of a galvanized steel structure with a strong cover. The right version depends on the dimensions, the existing concrete setup, the stored material and the required duration of use.

Whether you need an environmental permit for a bunker silo shelter depends on your location, the dimensions, the duration of use and local regulations. Always check this in advance with your municipality or via the official permit portal.