Bloody metric measurements - great system, couldn't and wouldn't argue against it. But.....
Consider this scenario, good people. Ducted heating furnace in the roof was having a good go at coming through the ceiling (being a skilled metalworker, and a RCM lurker, I knew straightaway something was wrong..) Turned out to be crappy install job, vis
1.Vent pipe not sealed properly (so it leaked) 2.Was sitting on a sheet of particle board crap stuff so it rotted through 3.No drip tray set up for stuff ups.So. Decided to get a drip tray made, its a metric world, so did it all in Metric so as to give the order for the tray to the local plumbing supply place. Measured L by B, added 10mm each side for the folded lip, and put the order in. Picked it up, thought "Mmmm..."
Seems I had stuffed up the decimal point in my metric calculations - was 200mm wider than required (length was stuffed too, but that was OK
- was room up in the roof cavity) so, couldnt get the bastard up through the access hatch into the roof. So, had to cut it down - heaps of work...
The Moral - I cant think in Metric, cant visualise in Metric, cant look at metric measurements and think "nah, no way - too wide/long/ narrow thick etc etc"
How you guys cope - bloody sick of doing this...
Andrew VK3BFA.