RicodJour wrote:

Assuming the herringbone is at 45 degrees to the room, layout the
first line by measuring out from a corner along both walls an equal
distance (verify that the corner is square first!), then snap that
line. The intersecting line is 90 degrees to the first, place that
on
your next major axis and there's your grid. The herringbone pattern
repeats, and it's not necessary to have every edge hit the line.

Are you suggesting one diagonal line and multiple lines perpendicular
to it?

You should definitely check out (as in library) Michael Bryne's
book,
Setting Tile. Excellent book, good section on layout. The John
Bridge tile forums online are another excellent resource.
http://www.johnbridge.com/vbulletin/index.php?

I just ordered it and John Bridge's book as well.

Thanks!