From: whit3rd@gmail.com   
      
   On Tuesday, July 28, 2020 at 11:02:12 AM UTC-7, Commander Kinsey wrote:   
   > On Fri, 17 Jul 2020 13:15:24 +0100, Jasen Betts  wrote:   
      
   > > sheet metal in mm (1.6mm, 0.65mm etc...)   
   > > plastic sheet in microns   40um  etc.   
   > > electric wire in square mm.   
   > > fencing wire in mm diameter.   
   >   
   > Much more sensible.  Guage is meaningless and is the wrong way round, higher   
   numbers are smaller!   
      
   Oh, no, not at ALL meaningless!   The process of drawing wire is successive   
   reduction   
   in diameter, starting with a rod and stretching/annealing/stretching...   
   the gage for wires represents the number of operations required to get it down   
   to size.   
   That gage is the key to what a pound (or kilogram) of the wire will cost ya.   
      
   Sheet metal, similarly, has to be successively rolled down to size from big   
   billets...   
      
   The  stuff you buy from manufacturers, is sold by manufacturers'   
   representatives, and they   
   will ALWAYS sell these items by gage.   
      
      
   > There seems to be no standard for doors.  You can order about 15 different   
   sizes in the UK, but never anywhere near the one you need.   
      
   Here in the US, millwork shops can build (or modify) a door to almost any   
   dimension.   
   Prebuilt/prehung doors, in door-plus-threshold assemblies, are the   
   run-of-the-mill   
   construction choice, usually are in stock; those are 'standard' only in that   
   an architect   
   applies some requirements for entry  and passage doors (like, ca   
   -pass-a-refrigerator).   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)