Re: Hello Mfiore,
I am not expert my any means. I think the founation issue has to do a lot with your local soil conditions. Mine is clay which I think is the worst. Anyway, I went below my frost line and put in a footer. I then stacked my blocks on that (4 courses below ground and 4 courses above ground). I then poured every core with concrete which I know is overkill. I would check around for your area and see what the professionals recommend. My guess is you'll want to dig down past your frost line or account for it somehow.
Good luck.
Dick
The picture shows the blocks in place while were backfilling/drystacking. |