Except the floor boards are in three levels. The lower double red line you refer to does match up with the lower level and could well be a support but the lower level doesn't extend out to the "X's" we're concerned with.Don, I think if you look at the upper right hand cross section drawing, look at the red line drawing just above the keel and there appears to be a larger section in red that appears to be a heaver frame section resting the keel, just what appears to be a seat outline, the double red line, and the lower double red line appears to be the floor boards and the frame would also be the support for the floor boards, both fore and aft. This is the way I see the representation on the drawing. Mikeyt
