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Posted by DerbyDad03 on January 8, 2008, 7:52 pm
On Jan 8, 7:10=A0pm, trexxxmeis...@gmail.com wrote:
> I am a novice DIYer who is attempting a second floor bathroom
> renovation.I had to move my toilet about 5 feet so I could replace the
> exising 30inch vanity wih a 42inch one.It was relatively easy to move
> the toilet as I extended the 3inch ABS toilet drain paralell to the 10
> inch floor joists.I removed the existing vinyl flooring, removed a
> layer of 1/4 inch particle board, and had to cut out pieces of 1/2
> inch plywood to move the toilet. Now I have to put the subfloor back
> together again and install a toilet flange above a 90 degree 3 inch
> ABS fitting.I want to put a solid subfloor down as I am installing a
> larger soaker tub and will be laying granite tile.I am stumped/
> overwhelmed by how I proceed next. I can't just pull up the existing
> 1/2 inch plywood and replace with it with--say-3/4 inch plywood
> because some of the bathroom walls are sitting on the plywood.When I
> cut part of the subfloor out for the drain I couldnt cut the plywood
> down the middle of a joist because thats where the plywood was nailed.
> So if I patch my holes with 1/2 inch plywood and put another 1/2 inch
> on top, the subfloor will be weak where I patched my holes. The joints
> of the patch will not be sitting on a joist.Whats the best way to
> proceed?Also, is it better to lay my subfloor and then cut a hole
> above the 90 degree bend to install my toilet flange, or extend a
> piece of abs out of the 90 bend and cut my subfloor around it?
> Thanks
You should have, and still could, remove the nails where the plywood
sits on the joists and put your seams where they belong. A Cat's Paw
is the tool for the job:
http://www.mikestools.com/Cats-Paws_1019.aspx
Another option is to sister a joist onto the side of the existing
joists to give youself a nailing surface.
http://www.hammerzone.com/archives/framecarp/supplement/floor/joist1/sister.=
htm
Cutting the subfloor before installing it over the 90 is probably
easier since you'd need to measure it out anyway. Also less chance of
mis-measuring and cutting it wrong/damaging the 90.
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