On Mon, 05 Oct 2009 12:05:51 +0100, Grimly Curmudgeon wrote:

We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember Andy Champ
saying something like:

I've never understood the use of mm in building. Since when was a house
accurate to within an inch, never mind 1 mm?

Architects living in hope?

There was one on Grand Designs where the guy designed his own steelwork and
oversaw the erection and it turned out to be to better than 5mm.

SteveW