Installing a Bunker Silo Shelter on Concrete: A Practical Guide

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Our shelters are increasingly being combined with concrete walls. This application is particularly popular in industry and waste processing. In these sectors, the combination is known under various names:

  • Bunker silo shelter

  • Trench silo shelter

  • Silo shelter

  • Box shelter

These shelters are ideal for covering bulk materials such as various types of waste, sand, and gravel.

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Concrete Blocks as a Base

Concrete blocks, also known as legio blocks, mega blocks, or stackable blocks, form an excellent base for our shelters. These elements offer several advantages:

  • Quick and easy assembly without adhesives

  • Suitable for both temporary and permanent applications

  • Easy to stack and relocate

  • Stable on a flat, load-bearing surface

  • Adaptable to your needs

Key Considerations for Concrete Walls

For a smooth installation, it is crucial to position the walls at the correct distance. Measure both at the base and the top of the concrete wall to prevent misalignment.

The maximum distance between the concrete walls for a single setup:

Type Distance

CTA806 7.8 meters

CTA812 7.8 meters

CTA1012 9.8 meters

Note: Always refer to the technical drawings for exact measurements and tolerances, especially when installing multiple shelters side by side.

Mounting on the Wall

The base rail of the bunker silo shelter is secured to the wall with concrete anchors. This option can be added to your order. For optimal attachment, a flat top surface on the concrete wall is essential.

Tip: If using concrete blocks with a rounded or uneven top, installing a single shelter is possible as long as the spacing matches the technical drawing. However, placing multiple shelters side by side is not feasible in this case.

Extension and Enclosure

You can extend your bunker silo shelter in increments of 6 meters, with no maximum length. Our design is optimized for this. Additionally, you can enclose the back of your concrete wall by combining the shelter with a back wall. This ensures optimal enclosure while keeping the front accessible for equipment such as a loader.

Structural Calculation for Your Concrete Wall

A professional structural calculation is recommended in the following situations:

  • For walls higher than 2.6 meters

  • For a span of more than 8 meters

This calculation ensures that your existing concrete wall can bear the additional load. Kroftman can connect you with a qualified structural engineer for this calculation.

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Want to know more?

View all container shelters, bunker silo shelters and Workboxes, or get started yourself with our 3D configurator. Can’t figure it out or have specific requirements? Our sales team provides no-obligation advice.