Hi,
I moved into a new house that has a tiled shower with leaks. I have
removed most of the tile and the leaks appeared to be coming from
inside the shower since the lower portion has the rotted wood, upper
is fine. There was no cement backerboard between the tile and plywood
(probably didn't have such a thing when the shower was installed).

Anyway, I would have liked to just buy a premade fiberglass shower but
my drain is offcenter and buried in concrete (basement floor shower).
I have a few questions:

1. Is it okay to remove any of the rotted wood, reinforce with
sandwiched new wood (pressure treated I was thinking)? I'd rather now
remove all the plywood and redo all the framing. It appears to be very
sturdy.

2. Are there any other options to redoing the shower pan with tile as
before since the drain is off center? I know I can jackhammer the
floor but am not really interested in that option. I thought about
building up the floor and getting some kind of pipe to relocate it but
little room to build up.
I know custom pans are available but very pricey. This is a guest
bathroom so I'm really thinking least cost, lowest maintenance.

3. For the walls, I'd prefer not to do tile again just because of the
work and upkeep. Someone recommended cultured marble but I would guess
the answer to #2 would affect this option. That is, how would it look
to have cultured marble walls and a tile basin?


Any other suggestions would be appreciated. I also looked at Tirazzo
solutions but they also seem cost prohibitive.


Thanks