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Old 07-29-2012, 07:05 PM   #1
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Repairing a rotted floor


I am new here and I am taking on a tiling project in my bathroom. I tore up the existing tile and found a rotted floor underneath the toilet. This stuff was just crumbling apart so I decided to take the subfloor out. Due to pipes and a wall, the closest joist to the wall is far out of reach for me to get to. My question is how would I go about increasing the "structural integrity" of the new subfloor if I cannot attach it to the joist that is sitting under the wall? I was thinking that I could place some cross beams, but would that make the new floor stable and safe enough for the new tile and toilet? Thank you in advance for any advice!

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Old 07-29-2012, 08:13 PM   #2
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Add 2x4 blocking on the three sides not supported by the joist--screw to the decking and the floor joist


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adam.r (07-29-2012)
Old 07-30-2012, 09:43 AM   #3
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If you use a Toe Kick saw you can cut that floor out right along the bottom plates.
I'd use 3/4" Advantec T&G as a subfloor not plywood, with constrution on the tops of the floor joist for added streingth.
Advantec is more moisture resistant then plywood.
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