Basement Subfloor spacing

Old 06-10-01, 08:10 AM
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Hi all, during my planning phase, I have another thought and not sure if it's okay. I'm trying to have the maximum height between the ceiling and floor after framing. I'm planning on using the 2x4s to build the subfloor but flipping the 2x4 flat so that the subfloor is approximately 2" height instead of 4". Would this be a problem? Also, what it the common spacing between each of the 2x4 being use right on top of the concrete floor, 8", or 6" or even smaller? Any suggestion will be greatly appreciated. Thanks.
Old 06-10-01, 10:27 AM
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It is very common to have these "sleepers" sit flat on the floor. I'd put them no more than 16" o.c. (we already covered that term) if you are using 3/4" plywood subfloor. I'm not sure you even need the sleepers, however, unless your concrete floor is very uneven. This would save you the 1.5".
Old 06-10-01, 01:58 PM
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Question Basement Subfloor spacing

John, thanks for the reply. The reason I was thinking using the sleepers because plan to insulate the floor and have something to nail the 3/4" polywood subfloor. Are you saying that I can just shoot the 3/4" polywood against the concrete floor as the subfloor?

I just picked up some duck tape and will tape plastic on both concrete floor and wall to see if I have any condensation problem. The house was new and since we move in, I have been observing any leaking whenever we have a heavy storm for the past three years regardless of the weather. There is no sign of any problem what so ever. It always clean and dry even during the hot humid day. What would you do to build a subfloor? Please advice.. Thanks.

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