On Wed, 16 Sep 2009 22:18:49 +0100, Colin Wilson wrote:

Ours is only going to be for the upstairs (2 bedrooms, stairs and
landing)

Think I'd go for the 11mm in the bedrooms, nice and comfy on your
tootsies and maybe the landing. But the stairs I'd use something
thinner, they take quite a pounding and all the movement that a thick
underlay will allow in the carpet won't do it any good IMHO.

--
Cheers
Dave.