I would guess about the same for shipping. I generally go flat rate because I can do the label at home (usps.com) and then I don't need to physically take the package anywhere - a med box is $11 or so and a large is maybe $15? Really, for me, the cost usually ends up being an issue of needing fabric. I've got a big stash but it doesn't always match up with what I'm envisioning so that usually means a trip to the store and who can go to the store and ONLY buy what you "need"?