This might sound ridiculous, but I'd like some opinions on this.
Our basement flloor is concrete, but slants fairly steeply from the outside walls towards the center (about 2.5" lower in the center). Now we could level it with concrete, or we could build a subfloor out of wood beams that are shimmed, and the top with plywood.. but what about sand? What I mean is, what about leveling the floor with tamped down sand, and then applying a double layer of alternately layed plywood over top, with vapour barrier inbetween the wood and the sand? is this absolutely ridiculous? and if so, why? Thanks!
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