I've sent this message to the HardieBacker folks but I thought I'd
also ask here, just in case.
I'm a homeowner putting down HardieBacker as part of a bathroom floor
I've read the "Floor Installation" instruction which states "Use the
fastener pattern as a guide" to placing fasteners. The fastener
pattern is, I assume, the slightly depressed circles in the field and
the slightly depressed 3/4 circles and elongated circles on the edges
of the product. However, while there's a pattern of elongated circles
about 8" on center along one long edge of the board, there's no
similar nailing pattern on the opposite long edge. The nearest
fastener pattern to this edge are field spots about 5 1/4" away from
I would think all edges would have fasteners nearby, but that's not
being indicated by the fastener pattern. Is this correct, that no
fasteners closer that 5" or so are needed along one long edge while
the other edge has fasteners much closer than that?