Bennetts, Why is that a deal killer? I realize that a 12" is stronger by size, but I believe that the frame is a double stacked box frame which is very strong, these trailers do not move when stabilized properly using the 6 point level up system. I would not be deterred by this at all, plus with this construction the basement is HUGE, and I mean [size=14pt]HUGE[/size].. You would not be disappointed.