Stretch 20

[dave s]

My 1975 18SF has all flat panels- no wedge, hook, or rocker.
Made it easier to add on hull extension.

[fat2nawilly]

I'd say go for it and try it, id cut the transom off and stretch it there. ppl do it all the time on downeast hulls so why couldn't you do it? go for it bud its only fiberglass.