thanks guys,
#1 i have a 10mm round notch rubi, would that do the job??
#2 am getting keys to house tomorrow then ill check the floor??
#3 the door is in the middle of the room, how do i work to that if its in the middle and not the corner??
#1 If the floor is flat, 10mm is fine.
#2 Check the floor for humps and low spots. Put a very long level or straight edge over it in various places, and look under it for high and low spots. If its bad, I would try latexing the floor flat before you
tile it. Trust me, its easier this way. If you need latexing advice, ask.
#3 Again start by marking the floor in the centre both width and length. Then dry lay a few to see what sort of cut you get into the door way, and the edges of the room. If its not quite right, adjust the centre line slightly, and check again. Personally, and it is only personal opinion, floors looks better with the same cut either end of the room.
If anything Ive said, your not sure on and want me to elaborate on, either post up, or PM me.