ᐅ Is a foundation necessary for containers? If so, how should it be done?

Created on: 13 Mar 2024 19:13
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wobbbel
Hello everyone,

A shipping container office is going to be placed on an agricultural property. The container measures 6 meters (20 feet) long, 2.5 meters (8 feet) wide, and 2.8 meters (9 feet) high.
See photos of the container and the installation site.

The question is whether a foundation is needed for this. Are there people here with experience?
Is a proper concrete foundation required, or would a few stacks of paving slabs be sufficient?

I appreciate any help! 🙂
White shipping container on gravel plot next to wooden fence; garden furniture in the foreground.

Person working outside a building, next to building materials and green piping.
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wobbbel
13 Mar 2024 22:04
Okay, so you had a distance of about 1 meter (3.3 feet) between the support points?
That would make 16 points, I believe. That’s quite a number!
I can well imagine that you wouldn’t have any problems then. That would be roughly 150 kilograms (330 pounds) per point.
Thanks for the tip!

How would you recommend shimming the slabs?
With sand? Or gravel? Crushed stone? And how thick?
M
motorradsilke
13 Mar 2024 22:17
wobbbel schrieb:

Ok, so you had a distance of about 1 m (3 feet) between the support points?
That would make about 16 points, I think. That’s quite a number!
I can definitely imagine that you wouldn’t have any problems then. That means roughly 150 kilograms (330 pounds) per point.
Thanks for the tip!

How would you support the slabs underneath?
With sand? Or gravel? Crushed stone? And how thick?

No support underneath at all. Just directly on the undisturbed soil.
Fewer points would probably have worked too. I wanted to be sure it would hold since we lived in it. But I wanted something removable, so no solid foundation.
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WilderSueden
14 Mar 2024 07:47
wobbbel schrieb:

How would you support the slabs underneath? With sand? Or gravel? Crushed stone? And how thick?
If you want it to be permanent and don’t have sandy soil like in Brandenburg, I would recommend a crushed stone foundation. With our clay soil, it would definitely sink.
DeepRed14 Mar 2024 08:06
At my company, I had to set up three of these containers. I constructed a strip foundation with 30cm (12 inches) of compacted gravel and placed 30x30cm (12x12 inches) paving slabs on top. It has been stable for five years. This might be a bit more than necessary, but the container company required it.