> I'm planning on building a modified version of the skin-on-frame kayak in
> George Putz's book "Wood and Canvas Kayak Building". Would
> mahogany be a good choice for the frame? It's the one of the lightest and
> cheapest clear woods that are available at my local hardware store. This
> kayak doesn't require much wood, so the cost would not be signifigantly
> higher than using western red cedar, which has knots.

I made a skin on frame kayak years ago and used the best exterior grade 3/8" plywood I could find for the cross frames. I used mahogany (stripped 3/4" x 3/4") for the long pieces. I sealed all the wood carefully and it worked well for years. Randy