Estimate the volume of a Ship (shrink item spell)

[Red Bear]

what ship (or boat) can a lvl 7th caster shrink? 14 cu. ft.

[Cog]

what ship (or boat) can a lvl 7th caster shrink? 14 cu. ft.
One approximately three or four feet long. If your caster is a pixie, perhaps a rowboat?