WOF (short for Width of Fabric) is one of those sewing terms that can feel mysterious when you’re just starting out. Let’s walk through what it means, why it matters, and how you use it in your quilting.

What is Width of Fabric (WOF)?

When quilters say “width of fabric,” we’re talking about the measurement from one selvedge edge to the other selvedge edge.

•  Quilting cotton is usually about 42–45 inches wide.

•  It’s folded in half on the bolt (that’s why it looks so neat and tidy in the shops).

•  The selvedges are the finished edges at the sides, and the fold runs along the opposite edge.

So when your pattern tells you to cut “a 3-inch strip WOF”, for example, it means you cut a strip across the fabric, selvedge to selvedge, while it’s still folded in half.

Why Does WOF Matter?

Knowing about WOF helps you:

Cut accurately: you’ll always start with a straight edge before cutting strips.

Understand fabric requirements: patterns often calculate yardage based on the standard 42–45” WOF.

Work faster: leaving fabric folded lets you cut multiple layers at once.

Tip: Always trim off the scraggly edge first. Fabric comes off the bolt a little uneven sometimes. That clean edge is your friend for accurate strips!

Watch this video here for a full explanation of how to cut a strip WOF.

A Quick Recap

- WOF = selvedge to selvedge

- Quilting cotton: usually 42–45 inches wide

- Cut with fabric folded in half, just as it comes off the bolt

- Always straighten one edge first for accuracy

Happy quilting,
Kim x