1. Can cope with a lot of rain/runoff so it needs to have a bit of ground clearanceyou would need some height from natural surface for this, maybe even channelled to allow the water to pass around it
2. Keeps ants outyou would have to chemical treat the ground maybe Diatomaceous Earth
3. Prevent ground moisture creating humidity in the obsdouble layered 200um black plastic
4. Stable so I'm not having to mess with polar alignment all the timethick concrete slab
5. Semi permanent so I can remove/move it if necessarywell if you want 4 then you will loose the slab and unbolt the top
the pre made slab will break up, they are not very thick:shrug
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