What is it with railway modelling and the metric system ?
Why is plasticard still sold by the thou ?
I have no idea what a thou is but I do understand millimetres and decimals of these. It's really not difficult and every kid who has been in a school since the 1970's understand this. Metric measurements are easy with lots of tens to calculate. Despite this, you can't find 1.5mm thick plastic sheet, it has to be 60 thou.
Another bone of contention; America, it is the 21st Century and you lot still can't do metric either. Look at this lovely 1/2" tube, or 12.7mm diameter. Just do 13mm, or better still 14 which was what I wanted in the first place !
While using the plastic, I found this handy on-line converter from thou to mm.