dpb wrote:
On May 29, 11:55 am, Greg Esres wrote:
dpb wrote:

Start w/ the layout lines at the selected angle in the middle of the
field perpendicular to each other just as if it were even-running.
Make the first lines perpendicular to the selected angle spaced at
the
proper location for the next running course. Lay the first courses
against the initial line and use the reference lines to keep the
pattern running even. When you get to the walls, trim to fit.

Hmmm....not completely clear what you're suggesting. Perpendicular
lines rotated 45 degrees in the center of the room, and draw other
lines parallel to the existing lines, at brick sized intervals?

You do _not_ need lines that close. It's a waste of time. Start
laying the tile out dry and you'll see. If the first tile is spot on,
the second one can't be that far off, so there's no need for a line
for that one. Every other line is still too close in my opinion.

If the selected orientation is 45 deg from walls (certainly most
common and probably best in an approximately square-shaped room),
start with that, trying as Rico says to get it as even as possible
given whatever out-of-squareness there is in the room so the angles
are as near equal on each wall as possible. Then, from the middle of
that line, lay out a perpendicular line and then simply start the
running bond from that. As Rico says, once you get the first course
laid the spacing between rows is controlled by whatever you choose for
grout spacing -- either the tiles themselves if narrow or the
appropriate spacer for the selected line size. You really don't need
more than the one or two perpendicular lines and they're only there to
establish the initial offset from one course to the next but one --
again, assuming you're splitting the tile offset by half the tile
dimension (plus grout of course). That line is the target point for
the middle of the grout line for the next course that is aligned with
the first to keep you running straight ahead instead of letting the
pattern shift as you proceed.

Indeed. There usually is one major line of sight, so you really only
have to concentrate on that line. Usually it's the longest line in
the room, or the line from the other room through the center of the
bathroom doorway.

The books will make it a lot clearer. I haven't read john Bridge's
book. When you've finished them both, post a report about their
relative strengths and weaknesses. I'd appreciate it.

R