I'm refitting our bathroom which is about 3m sq and am putting in a wetroom shower in the corner with the hidden tray under the tiles. The floor slopes slightly and not in the right direction for the shower. I'm putting 18mm ply on the joists and adding noggins for extra rigidity but am considering using shims to level the floor but have never used them for any project I've done before. Would welcome any advice on this such as how closely they should be spaced to avoid flex. I suspect that using a floor levelling compound would be easier but I am trying to avoid making the floor any higher than it needs to be at the threshold to the hall. This is the highest point in the room so will not need shims there.
Am I mad? Would it be better to live with a slightly higher floor and use the compound? If so, does the compound have to cover the entire floor? Is there a minimum depth that it has to be or could I just fill the lowest spots? The floor seems to be level near the door and on that side of the room. Have never used compound before either but seems fairly straightforward.... open to tips though! Appreciate any help. Thanks
Am I mad? Would it be better to live with a slightly higher floor and use the compound? If so, does the compound have to cover the entire floor? Is there a minimum depth that it has to be or could I just fill the lowest spots? The floor seems to be level near the door and on that side of the room. Have never used compound before either but seems fairly straightforward.... open to tips though! Appreciate any help. Thanks