helpImTrappedOnline, (edited )

With the Sheet Metal Gauge!

It’s the same as wire gauge, but the scale is different per material!

For steel

  • 16g = 1.5mm
  • 22g = .75mm
  • And so on

Pretty much anything larger than 1/8th of an inch (3.2mm), we just use the measurement (in inches).

Why? Because we don’t have a common measurement unit smaller than an inch. There probably is one, but no one commonly uses it. Coming up with a gauge scale is actually easier than say .0123 inch thick. Say “12 gauge wire” and everyone (who knows about it), knows exactly what you’re talking about.

Pretty much anything below 1/32 (0.8mm) of an inch, we’ll switch to decimals. 0.0001 inch is valid with no common way to make that neater. No such thing as 1 mili-inch.

Remind me, what is the cost of living in Europe?

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