Originally Posted by ktbb
This is information I got a couple of years ago for pricing custom quilts. It might work for you.
Basic price for custom quilts is $15/square foot of finished quilt. This cost includes fabric, preparation, piecing, quilting and finishing. Price can vary depending on complexity of block pattern, preparation time, complexity of quilting, etc. Price can also vary (decrease) if customer provides own fabric.
depending on complication of quilting design $15 to $25/ square foot, including all that ktbb cites.