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Old 12-12-2011, 04:24 AM   #1
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Building up a new floor over an existing floor


Upstairs i have a large living room .. has 2x12 joists running across 16in OC with OSB subfloor.
Half of the living room floor is 13in. below the other.
i want to level the floor by stacking a new floor over the lower floor.
Can i simply build a new floor atop using 2x6 joists (will support it every 32in)?

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Last edited by TooTired; 12-12-2011 at 04:27 AM. Reason: update measurements
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Old 12-12-2011, 08:47 AM   #2
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Building up a new floor over an existing floor


No pictures, no way to know the spans your thinking of running the 2 X6's, no way to know how this is going to effect things like doorways, steps, trim, the distance from floor to bottom of windows.

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Old 12-12-2011, 11:06 AM   #3
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Building up a new floor over an existing floor


Quote:
(will support it every 32in)?
What does that mean?
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Old 12-12-2011, 12:04 PM   #4
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Building up a new floor over an existing floor


Never 32" o/c. Always 16, stacked over the existing 2x12's, as long as there will be support under or close to where the news joists end. It sounds like the existing joists can support the new load, depending what they're bearing on. How do 2x6 joists make up 13"?

Last edited by titanoman; 12-12-2011 at 12:10 PM.
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