All fabric places have to be watched anymore. A lady from our church quilting group, purchased 90" cotton backing material for a queen size quilt top. We absolutely could not get the top to fit the backing material. Finally it dawned on us, it needed to be measured since it was no where near wide enough. It was only 88". So back to Hancock Fabrics. Took it to the counter, she assured us it was 90", we asked her to measure it, 88" it was. I pulled the core from the shelf it came from, the end markings said 90". Measured another, 90" on the core, 88" when measured.
Got our money back and ordered from a company online. Much better hand to the fabric, less expensive and free shipping. You just have to shop around.