I have been sewing a very long time and this is new to me also.

Wow, I just learned something! Never thought it meant 1 sewing thread over. What a concept! My great-great-grandmother taught me to quilt, and she didn't know about this either, I'm sure. She just told me to "keep all my seams the same" and my quilt would be fine. Not true, of course, but I learned that later.

Never heard it before. Here's my duh moment. Still don't get it, even with the way you attempted to explain it to me. However, if I ever run across it in directions, I'll be sure to look it up. I hear Homer Simpson now "Doy!"

I'm with you orangeroom. I just started quilting and have no idea what they are talking about. Can someone explain, please?

Me too! I can not see a single thread on most fabric!

Getting the seam allowance the right size is a necessity.
What I did was sew three strips togather then measured the middle one till it came out the right size.
Then I wrote on my machine the needle setting I used.
The one thread method dosnt always work so do a strip test for size you need.
I seem to need a scant 1/4 in for a 1/4 inch seam.

Just because one person's interpretation is published, doesn't make all other interpretations wrong. Seems like it just basically means to move over just the tiniest bit, however you choose to measure that bit.

Seems like we're all on the same page here! I'm another in the thinking one thread of fabric camp and also of the camp of 'are they nuts!' with that concept. I'm also of the belief that consistency of ALL of your seams is far more important than the 'true' or 'scant' measurement. As long as you are consistent, then everything will match up correctly. I guess if you're entering judged shows it makes a difference. I'm definitely NOT in that camp!

So funny!!!!

A friend of mine, new to computers, thought lol meant "little old lady". Since I am one, he thought it was appropriate.