: I'm familiar with how Brian builds his boats. The rib spacing shown
: on the drawing is wrong. Just build it like Brian says and
: you'll be fine: 3 inches from forward of backrest deck beam to
: forward of rib. Then start your layout from that rib, spacing
: ribs every 6 inches. Then move the rib immediately forward of
: that reference rib forward 3 inches, so that the spacing between
: the ribs for your butt is 9 inches on center.

: Like this: | | || | | Each line is a rib.

: make sense?

Hey those lines didn't space out right...there should be a bigger space for your butt in there.