I am curious as to how working Engineers measure/prefer to measure things. English or metric or a combination of the two? It seems like metric would be superior in small size applications but I'd like to hear what works in the trenches. In construction English is the only way to go. Foot references are only used to describe say building size or material size. One carpenter doesn't say to another I need a piece 7' 10", he says I need a piece 94". Why? Well its just easier. In such things as framing a house an 1/8th" is often as close as it gets. In woodtrim we go with 16th heavy or 16th light, nobody uses 32nds. There is another term we use for small increments but I'd probably get banned if I said what it was, universal use coast to coast though In laying out house plans I use a cobbled system of metric and english. Like 1 cm equals = 2 feet or whatever works on whatever size paper I'm using. This isn't normal practice, just how I like to do it.