12:37PM | 11/16/05
Member Since: 11/15/05
1 lifetime posts
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!



10:38AM | 11/22/05
Member Since: 11/27/04
172 lifetime posts
don't do it.

the sand will pull moisture up from the concrete. the plywood on the plastic will cause moisture build up on the top side of plastic and twist the plywood..

if floor is not painted then use self leveling cement(in lifts) or pour a new floor over entire area, being sure the edges are at least 2 inches thick..

you could shim a new sub-floor with pressure treated wood and then plywood on top..

Remember the past or all is lost.

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