DIY folding kayak rib replacement?

3 of the ribs on my Nautiraid kayak are broken and the cost to replace them
is over 300$. 2 of the ribs I've already replaced with regular home-depot
plywood but in the form of a solid board - the center isn't cut out because
the wood isn't strong enough alone, but I'd like it make actual ribs. The
original ribs are like 16 ply plywood.

Have any suggestions on what material I could use to make new ribs that
would stand up to the stresses of tight assembly / disassembly puts on the
piece?

Tyrone <nobody.TakeThisOut@nowhere.com> wrote in
news:Xns9861DE08FD083nobodynowherecom@216.168.3.66:

> 3 of the ribs on my Nautiraid kayak are broken and the cost to replace
> them is over 300$. 2 of the ribs I've already replaced with regular
> home-depot plywood but in the form of a solid board - the center isn't
> cut out because the wood isn't strong enough alone, but I'd like it
> make actual ribs. The original ribs are like 16 ply plywood.
>
> Have any suggestions on what material I could use to make new ribs that
> would stand up to the stresses of tight assembly / disassembly puts on
> the piece?

You might consider using HDPE (the material cutting boards are made of).
That's what's used to build the boat at www.yostwerks.com