I have ordered from them before as well. I love the 37" of fabric you get when you order a full yard. Explained here from their customer service page.
[h=3]Fabric Cuts[/h]Our by the yard fabrics can be ordered in ½ yard increments. Prepackaged assortments, fat quarters, etc. cannot be cut. Please note: To ensure your total satisfaction, we always give you a generous cut (37" rather than the regular 36").