setting out time dry lay?

[The D]

i have not drifted from original question. i am looking to find out how 345 helps set out a room that is out of square faster than using a square.*

 

[DHTiling]

Even to get your second square line Nick via 345 , you still need to know where to start your first line lol lol.

345 is a squaring formula as said above but you still have figure what wall is the true point to come off.

Also as above rack of eye,

 

[Mike]

as already said, line up a row of tiles parallel with the long row of units/the one that catches your eye and dry lay to see how it looks when you get to the opposite units, try and have near as possible to a full tile here as this will show if it's out of square

 

[widler]

lay ont floor,look down said floor with eye,stick thumb up in front of said eye,twist thumb in front of eye,bingo,its square

rack oft eye,twist of thumb,works everytime for me