I don't think you have read this right Daz. Or I haven't explained myself right. I want to lay a floating timber floor from this entrance and into the rumpus area. As it stands, the tiled area is about 25mm higher than the adjoining rumpus room, which is just concrete. I removed two tiles to inspect whats underneath. Well the tile is really thick, at around 25mm. Then theres another 25mm from under this to the concrete base. So when I remove the tiles the existing base is actually lower than the floor in the rumpus.
So I cant go over the top of the tiles.