OK, since it looks like it’ll keep on raining forever, these instructions may come in handy…
Make thee an ark of gopher wood; rooms shalt thou make in the ark, and shalt pitch it within and without with pitch.
And this is the fashion which thou shalt make it of: The length of the ark shall be three hundred cubits, the breadth of it fifty cubits, and the height of it thirty cubits.
A cubit is roughly 18 inches, so you're looking at a ship about 450 feet long by 75 feet wide, and about 45 feet high.
And, no, I don't know what "gopher wood" is.