I agree that it looks like the ribs were made to support a nice floor but when I stood up on the floor that I put down it was just as tipsy as the rest. I just don't like it and with the small motor it has turned me off and I have it up for sale, I really appreciate all of your help...this is a great place for a newbie with lots of questions. I am sure I will be back! Thanks again for all your help and advice! Happy boating!