I used to - mainly wall pieces for offices, and charged for the artistic value. I would charge $25 for the sketches, then materials +100% to assemble them. Sometimes I made money, sometimes I didn't. It's good to have everything in writing and make realistic deadlines. If I was doing a story quilt, it would take some serious time to make patterns alone.
The area you work in is really important, as already brought up. Where I am now, you can barely give quilts away. There is zero concept of fiber arts, just thought of as a pastime for old ladies. I've had gallery owners tell me they do not touch quilts, even as consignments, and in extremely disparaging terms, too.