I guess you wouldn't have this problem if you're quilting at home and you have to baste it. You'd figure it out pretty quickly.
But on the long-arm, you can't tell until you get to the end and you realize that your backing isn't big enough. You thought you did the math right, but you're childhood math teachers would be sorely disappointed.
So you unzip the quilt (LOVE the zippers!), bring it home and scour the internet for more of your backing fabric. Then you piece on another strip to give you the length you need.
But she's all done now!
I used wool batting on this one, and I know I'll use it again. So fun to quilt on! And I love how these fussy cut squares:
I'm not sure where this quilt will go. My mom would say my daughters have enough quilts (and she'd be right), but it's just so pretty and girly.
The stats, if you're interested:
Pattern: Dottie by Cluck Cluck Sew
Fabric: The Simple Life by Tasha Noel for Riley Blake
Checking this one off my 2QFAL list as well.