Shipping Giclee's

What is best way to ship a giclee; roll in a tube or flat in a box? size is 16 x 20"

I would put that size rolled in a tube, much less expensive. But I would leave it to the buyer, they are paying the shipping cost…

My framer vastly prefers that works on paper be shipped and stored flat so they don’t take a curl. However shipping in a sturdy tube is probably both cheaper and safer than shipping flat.

Oh, I thought it was a giclee on canvas…