Originally Posted by randob300
I'm glad you're not a carpenter. You should be laying the garment carefully and neatly on a hard surface and then actually using the tape properly (in the first photo, you've started the 'measurement at 3/8", not to mention the undulations).
With that said, based on that second picture, I don't see this coat ever measuring out to a 17.5; 18.5 maybe, but probably not much less than that. I think accuracy to about...