Once you've identified the center and baseline from which you will work, snap a pair of perpendicular chalk lines. These will divide the room into roughly equal quadrants. You'll want to work outward from the center point in each of the four sections.
In an older home, you may find the floor isn't square, which makes the job more complicated. Use the most obvious wall as a baseline, so those entering the room will see tile lines parallel to that wall; your job will look more even.
by Gregg M. Brown on Jul 31, 2018 Ceramic Tile