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Continued (sorry).....
BUT if I get the person to fit the shower and toilet/sink unit first then doesn't that make the job harder for the tiler.
I'm assuming the flooring is the last thing to go down? BUT my dad says (rightly so) that because we have floorboards, a sheet of plywood or something similar will have to be laid on the floors boards so there's a flat surface for the floor tiles and if we put that down before the shower goes in (cos pressumably the shower will have to sit on the plywood as well) then the perosn fitting the shower, sink, loo, etc. won't be able to get under the floorboards to the pipes that are there.
Aaargh!! What a logistical nightmare. Can someone help me please?