you would almost get the idea that we knew what we were doing (but please don't yield to the temptation to believe that - 'cause we are truly making this up as we go) - 2X10 floor joists come next - followed by 2X6 santa maria tongue and groove flooring. The house itself will be a 20+ft X 40 ft "thatch" (which is both a description of (1) the type of house and (2) specifically the type of roofing material (leaves of the cahoon palm)