Distance/length: miles/yards/feet for distance but metres/centimetres for 
building materials (and drawings)

gee, It is just the reverse in Canada, with Km for Distance, but things like Plywood still come in 4X8 foot sheets to fit on studs spaced at 18 inches.

Small things may come in either, but they make the Kids come to school with rulers that are ONLY in cm to ensure that they learn that system first.

My favourite mixed one is tyres - for example, P225/60R17.  That's a 225 
millimeter wide tyre for a 17 inch wheel,
with a 60% aspect ratio.  That's just nuts.

That is a work in progress, in the 1960's Tires were sized line 7.50X14 (7 and a half inches on a 14 inch wheel.)


--
Charles MacDonald                 Stittsville Ontario
[email protected]              Just Beyond the Fringe
http://users.trytel.com/~cmacd/tubes.html
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