From: CFKinsey@military.org.jp   
      
   On Fri, 31 Jul 2020 04:02:05 +0100, whit3rd  wrote:   
      
   > 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.   
      
   It might be easier for them, but it's easier for you if they tell you what   
   you're getting.  4mm^2 wire is twice as much metal as 2mm^2 wire.  Twice as   
   strong if it supports something, twice as much current carrying capabilities,   
   half the voltage drop,    
   etc.   
      
   >> 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.   
      
   Ah.  I'm a skinflint, I do the modifying myself.   
      
   > 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,    
   an-pass-a-refrigerator).   
      
   We need architects like that.  The number of houses I've seen where you can't   
   pass a sofa into the house!  On two occasions, a window was removed!   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)