You can use okoume. It's accessable in Europe.
I was wondering why nobody uses plywood to get additional strenght?
alden wrote:NO. When balso is used as a composite core material, it is used in the "end-grain" direction. So you would cross-cut let's say 100x100x6mm lengths of your balsa and then arrange them side-by-side into a core. Done this way it is stronger than high tech foams, but not water resistant if you get a skin puncture.
How about Cedar? I have been considering it as a core material and was wondering if anybody had some feedback?vol wrote: balsa 120-190kg m3 2800 psi
paulownia 260-290kg m3 5700 psi
Western Red Cedar 390 kg m3 ~6000 psi
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