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Perfect Tiling
I'd agree with the above. put on new plasterboard and tank it. I doesn't need to be moisture resistant...not if your tanking it anyway. Also, some shower walls are on an external wall which requires duplex (foil backed) plasterboard and you don't get foil backed moisture check plasterboard (not up here anyway). When I'm doing floors I use a piece of stainless steel quadrant trim on the edge under the door...I leave about 6mm protruding for the carpet to be tucked under. It gives a nice slim rounded edge.....no stubbed toes!
