imagine a wooden sup for you mate looks nice

the link in the my top post mate takes you there

Ive made a couple of solid Balsa boards and they definitely need to be glassed as balsa is very soft so dings easy and loves absorbing water.
Ive also made a paulownia board which I sealed with epoxy resin, without glass, the paulownia is hard /strong enough that it does not need the glass (or a stringer).
Balsa is light enough that it does not need to be chambered but Paulownia is too heavy to leave solid and you need to chamber out the excess wood from the middle which is quite a bit more labour.
If I made another wooden board I would go with unglassed Paulownia again.
Paulownia is chepaer than Balsa as it is farmed in Australia, I used a timber yard in Rockingham which has every thickness and length you could want.
Wooden boards are labour intensive and heavy but are great fun to ride .

another sweet website about wooden surf boards is www.grainsurf.com
check out their forum, there is loads of information about design, building, other peoples projects, ect...

treetosea.org is the place mate...plans...step by step guides...the works...if you building a long board you will need a fair bit of space.