Mine is on a slope. To make it level, the back had to be higher, the left corner is the highest. If it were on flat ground, I probably would have raised it 2 blocks, to get air flow underneath.
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How does one pour a slab 4-6" above the soil?a cement slab, elevated about 4 to 6 inches above the adjacent soil
However, my intended site is under a silver maple and we are bound to run into all kinds of roots trying to dig down any amount.
And if this has to go under a tree, then NO slab. It will kill the tree or the tree will kill it.
How does one pour a slab 4-6" above the soil?
Or do you mean a 4-6" thick cement slab?
Slab poured over tree roots would likely kill tree...or tree roots may eventually destroy slab.
@green_thumb are you in Ohio(tag)...northern or southern?
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because it's Ohio, a certain level of "wet" needs to be expected in late winter/spring