yep, side to side top to bottom. two 3/4" plys tacked together was factory...
I have done two 74 model 20' hulls and both seemed to be rotted from the top down where the top edge of the plywood was not sealed. Also found bad rot around the IO hole. The inside fiberglass transom skin will be thin but the hulls outer skin will be fairly thick. I like to cut the inside thinner skin out and go back a little thicker to match the outer skin.
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Current SeaCraft projects:
68 27' SeaCraft Race boat
71 20' SeaCraft CC sf
73 23' SeaCraft CC sf
74 20' SeaCraft Sceptre
74 20' SeaCraft CC sf
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