You will see more and more reference to the metric sizes when written in catalogues or on web pages. The chatter down the mills is still hanging on to the old imperial sizes but that is also changing as the young guard comes through.Also, all fencing is imperial measurements.
Andy
I'm finding myself having to ask for doors more in the metric equivalent rather than their imperial size, as some of the younger staff have to dive back in the book.
I like metric.