thanks everybody for the replies so far.
Honeycomb structure would be to expensive, i'm afraid. It would be a nice solution though.
Corrugative sheet metal might be an solution as well, I'll look into it.
Drawoh, I couldn't agree more with you, basicly. Normally seen, I would have...
Hi,
Since October 2007, I'm designing a new, quite interesting, project.
This project is the development of a new, custom-made spiral freezer. Dimensions of this spiral freezer are 200" x 180" x 120" (in metric units: 5000x4600x3000mm).
Ok, so far, no problems. For those of you who don't know...