Weirdness with Tape, the metric system, and cross border shopping
I need to buy a quantity of painter's tape and I'm heading to the US in a couple of weeks so I wondered if it was worthwhile picking it up there vs. here. That's when I discovered an oddity.
The US uses inches where we, supposedly, adopted the metric system. Tell that to 3M and their ScotchBlue line of painter's tape. In the US (at homedepot.com or amazon.com) you'll find the most common size is an odd 1.88 inches wide. It is 1.88 inches because that's what 48mm translates to and in Europe, tape is often sold in multiples of 12mm. OK, whatever, that's fine.
But then when looking in Canada to compare (homedepot.ca), I don't see 1.88 inches... or 48mm... I find 50.8mm. Which, as it turns out, is exactly 2 inches!
So in the US they get a metric size sold in imperial units and in Canada we get an imperial size sold in metric units. WTF 3M? Why in the world would they bother making a 2.8mm difference in the first place? But then to cross market it like that? Wouldn't it make much more sense to sell a "2 inch" size in the US and a "48mm" size in Canada? (even more sense for 2" in both and leave 48mm to Europe, but whatever).