Ontario build code is hilarious. For example, table 9.23.10.1 specified the size and spacing of studs in walls. For interior walls, the maximum stud spacing is 406mm on center, and minimum stud size is 38x38mm.
If you didn't know this was 16" on center, and 2x2 framing, you'd think some mad drunk person had come up with these numbers. I also like to imagine building inspectors walking into a building and saying "Oh, these studs are 407mm apart. Tear the building down."
Re:Gimli Glider
by tonyarkles on Tuesday December 20, 2016 @12:18PM
(#13221777)
And in official government communication, it is nominally metric, but you'll see things in e.g. building codes like "hallways must have a width exceeding 914mm", which is really just 3 feet.
Britain has all of this in metric; the beer, road signs and casual (non-medical) body measurements are the only exceptions.