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Re: Skin-on-Frame: Green-white oak
In Response To: Skin-on-Frame: Green-white oak ()

Anyone ever use green wood for ribs, gunnels, etc?
I'm concerned with twisting/cracking after I mill it to shape?

Green white oak is good for ribs. I am building an SOF kayak. I found a nice small oak tree on my property. I first tried to split hazel, mountain ash and willow sticks with a froe, as shown on U-tube, but all twisted madly. So cut the oak log about 4" diameter with a table saw to make ribs approx. 3/16" x ¾". Bent them at the places they crossed the stringers and keel using a hot air gun directed at the inside of the bend as Nick Schade describes on his website, but some cracked on the outside. Perhaps I was impatient and bent it too soon. So I then tried a cheap steamer which directs the steam though a small nozzle, and found that after about 30s of focused steam, I could bend the rib, without using the heat gun. The rib bent back a little after it cooled. This method allows precise bending at the stringer. It might work for only thin ribs.

I would not use oak or any hardwood for any other part of the canoe, except perhaps the stems and trim pieces. Too heavy.

Good luck

Peter

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