Hi all, Presently attempting to put in new shower as old one was leaking and caused no end of wall damage. Apparently the last clowns who did it forgot about waterproofing and decided to use eve lining boards as bathroom / shower recess walls Anyway have ripped out all the old but I need to put in a small hob on the concrete floor to separate the shower from the rest of the bathroom. Currently the shower section sits a little lower than rest of floor but would like to build the hob up...

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