That must have been a factory designed floor. like i said, if it's done right (and apparently it wasn't in the case you describe) there shouldn't be any flexing.. Boat speak terms we use to describe our designs. this glossary was originally published in our webletters. if you have any suggestions for additions, or corrections. Enjoy the m-d building products 36 in. x 36 in. venetian-bronze aluminum lincane sheet metal 57015, lincane sheet metal's venetian-bronze finish complements a variety.