OK, I've given in to using my 115 evinrude which would be the
practical way. and so I'm thinking of decking material seeing its
really soft that is, what wood is still there.

I'm not against the idea of using Marine ply, but I've always wondered
why composite wod wouldn't be a better selection.

I got tired of my front porch rotting away ever 5 years, because the
treated pine couldn't hold up against the brunt of weather and baking
sun because out house faces the west. and the summer sun hits it hard.
So I bit the bullet and went with composite decking material (Trex) I
lvoe it! It was easy to work with, and no maintenance, painting, and
it doesn't rot.

so I did a bit of looking around and found this:

http://www.nauticexpo.com/prod/teck-...65-125119.html

I see they have used it for teak replacement and it looks pretty good.
Of course I might not be able to use it practically speaking, because
it would mean reinforcing with a couple extra floor joints (I suppose
that's what you'd call them) But I do like the idea of it lasting for
absolutely years.

I'm also wondering why pontoon and boat mfg's don't use more of these
products. especially in stringer construction.