Without a doubt, this is over my head. Ratios? Does 1:1.4:1.9 mean...well...I need things to be in feet and inches, or even meters, cm, and mm...that I can figure out...maybe.
1'x1.4'x1.9'=12"x15"x18.4" and if I can stay within increments of 1/16th of an inch I won't need a special tape measures that uses 10ths.
So I have an 8' wide space. It should be 10' long and 10.13' high? I would wager that I am very wrong.
I foresee much confusion on my part if I want to follow certain standards which aren't in feet and inches.