Originally Posted by Grammahunt

Cindy, this is not as difficult as you may think. Just break it down into units. You may never know the size of the quilt on Pinterest, but you can guesstimate.
For fun I like to print out an interesting quilt (like this one that looks complicated but is not) and draw straight lines across the picture to figure out how it was made. Doing this, I see that this quilt is made in two different strips. One is a 4-patch alternated with a 2-piece patch. The other strip is alternating thin and wide rectangles. Drawing on top of a print out shows how so, so many complicated patterns can be reduced to a few squares we are already quite familiar with--and it takes away some of the mystery of how they are sewn. Try it, you may become a drafter of patterns yourself! Good luck.

Grammahunt