On Sat, 23 Oct 2010 18:46:31 -0400, Colbyt wrote:
I'm not the one doing the tiling, but I was thinking thinset as there
will be some water near the sink. How much space between the backer
board pieces? 1/4" as LJ suggested?

I only use the Hardi product and haven't done any for over 5 years. I
seem to recall that 1/8" gap was the recommended amount. Where ever you
buy the materials should have installation instructions for free. If
not the MFG will have them online.

Yeah, and for the hardie stuff that I got earlier in the year, it was
printed on the actual sheets, too. I think 1/8" was right. I screwed the
board down at 8" spacings, with 4" at the edges. Thinset and tape for the
gaps.