For those of you wondering what "fat quarters" are, this post is for you. Here is what they look like. You may have seen them at the quilt shop.
A fat quarter is a 1/4 yard of fabric. Its dimensions are 18 x 22".
What makes this cut of fabric "fat," is how it is cut. Normally, if you ask for quarter-yard cut of fabric off the bolt, you will get a piece of fabric measuring 9 x 45".
Instead, a fat quarter is made by taking 1/2 yard of fabric (18 x 45") and cutting it in half width-wise. Both are technically 1/4 yard cuts of fabric, but fat quarters are generally preferred because you can get more out of it.
For example, let's say I am cutting 5" blocks for a project. From a traditional 1/4 yard of fabric, I will only be able to get nine squares maximum from it. From a fat quarter, I will get twelve. That's more blocks for my money.
Oh how I love fat quarters. They are little bundles of happiness.