Remove foundations

[drumnoise]

Hi everebody! Is it possible to remove foundations? I've made a foundation with a weak concrete so it has different color. That's why I want to remove it and to make new one.

[Bahilochki]

Use sledgehammer on it.
P.S. strong concrete is another color too

[Abbsinthe]

I guess the question belongs here.

How can you remove the foundations you haven't completed yet?

I've laid two squares of foundations in a way that I couldn't complete them with planks (two squares, side-by-side, the plank goes just between them, can't be fixed with nails). I cannot finish it and destroy with a sledgehammer, nor can I remove the poles and start over. The only solutions seems to be to crush the whole lower-wall level around these planks, but it's quite a lot of work to be undone.

[Mikhail Reign]

the edges of other concrete slabs count as boxing. If you have a piece inbetween two slabs to do you only need to box up the open edges.