What's a Precut?
Precuts are pieces of fabric that have been cut into smaller sizes, making them convenient to use. Purchasing precuts from a manufacturer may cost a little extra, but they can save you a lot of time.
Precuts come in many different sizes: typically 2.5" squares, 5" squares, 10" squares or 2.5" width of fabric (WOF) strips. Different fabric companies market their precut products under different names such as Layer Cakes, Roll Ups, etc. I've listed the various types of precuts below, in order from smallest to largest.