Why is there a size listed under “additional information”?

The size listed in this area is actually the approximate size we expect the shipping container to be.  In order to protect your painting we add 2″ to each side of the painting, allowing for packing material.  We do not ship unframed paintings rolled, as this would put a curl in the substrate and could damage the image.   If your purchase is framed, the frame too must be protected.  We add additional packaging to the outside frame dimensions for the additional packing material.