F**k the boat, whatcha. That's just a small part of the story. To concentrate one one tiny aspect in hopes of instilling doubt is a total waste of time.
Over the last fifty years I have had several dozen serious discussions re: the ark with various believers. Not only have no two ever told me the same story of what happened (excuses for where the water came from are myriad, how folks survived without plants after things dried out are never discussed, etc.) Personally I wonder where the grapes came from to make wine so Noah could become a drunk, but I'm not actually waiting for an answer, since none exist. Like the boat, f**k the wine too.
To believe the ark story, one has to suspend not only all common sense, but also overly use the imagination. That is not a good combination, unless you're a republican and used to that sort of thing.
The problem we here at WWGHA have with people who believe the ark story is that none of them are willing to pay attention to actual information. All we get are excuses, excuses, excuses every time we ask about why the geologic record shows nothing of a universal flood, explain how fish would have been wiped out by the drastically changed saline situation, or how the rainfall rate would be impossible to survive, no matter how many elephants you had to hide under.
If all christians agreed on the basic story and how it happened (water source, plant life, number of animals, etc) then we could come up with our canned responses to your canned beliefs. But since you guys couldn't agree your way out of a wet paper bag, and since all of you also insist you have it right, we atheists are forced to dig around in the debris of christian mythologies to find some question that adequately pisses you off, on a case-by-case basis.
Customizing your religion and then standing around in disbelief (oh, the irony) that atheists would laugh at your current crop of carefully contrived excuses is entertaining to a point. But you're past that point.
I'm with Jetson. Ban yourself.