William R. Watt ) writes:

I don't know if you've started to build but meranti (luan) plywood is
cheap, rot resistant, and does not check. I assume because you are using
lumberyard plywood, as I do, that you are interested in a cheap boat. I've
built in lauan and virola (not rot resistant) and just painted. I've also
fished from cheap painted (fir and spruce?) plywood punts. You can't get
spruce plywood any more as far as I know.

I should also note that when I weighed sheets of 1/4" plywood, fir was 22
lb, lauan (meranti) 17, and virola 8.5 lb. Lauan and virola are metric and
actually 1/5". I don't recommend virola becase I don't think the boat will
last long. I have used it for the light weight and because it bends to a
tigher curve than the others.

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