Reply With QuoteI just got a price today of $259 for 28 board feet of that. There's got to be something better.
2 x 6 verticle grain doug fur is what the stringers are made out of.
You can get this at any good lumber yard. May have to order but no big deal.
I just got a price today of $259 for 28 board feet of that. There's got to be something better.
The stringers I cut out my boat were redwood. There was little wood/fiberglass bond left, but the wood held up well over their 28 years life.
I will never use wood again. I just finished doing a transom and stringers using nidacore. You can use core cell it will work. If your going to use it, I can give you details on layup as well as pics. It is a little more complicated than using wood but it will never rot out NEVER!
I just got off the phone with nida core. The only thing I don't like is that the sheets come in 4' x 7'. I have 14' stringers which means that there will be a joint. I'm not sure that I'm liking that...
Kiln Dried Philppine Mahogany is what was generally used prior to the day of composite stringers as far as quality boats go. The trees this wood originates from grow in the rain forests of the Philippines and is considered as one of the most naturally water resistant wood in the world . I did alot of research before I did my stringers. It is a little pricey but from what I hear, well worth the dollars. No headaches like the ones obviously associated with porous woods like fir. Also much less heavy then fir and pine. Also very easy to work with. Good luck
The nidacore panels are cut and bonded together. What gives you the strength is not the core material but the separation of the layers of glass. When you separate the glass layers the strength comes from the stress on the outer layers. One layer is in compression and the other is in elongation. You should use 2 to 3 layers of 1810 glass to cover the core material. Wherever you put a bolt the core must be hollowed out and I personally use fiberglass filler to fill in. Preplanning is the key to using core materials. The weight savings is significant and the work will outlive most of us. The sound absorbsion with nidacore is second to none. Here's a pic of some of the work in progress. Transom 2 layers of 3/4 inch nidacore. Stringer on right 2 layers of 3/4 inch, not completed. , left stringer pressure treated wood before I changed my mind and never wanted wood below the water line again! I'm trying to post pics
come on Jim , you can do it.
I gotta see those pics..
The Photo:
http://www.***boat.com/forums/attach...2&d=1148758491
Sure wish this thread would have stayed active. I'm going to be replacing my stringers and some of the other wood. I would have liked to hear the results of using this material after a year and a half.
If I was going to build a new boat I'd use composites, no doubt. Doug fir and philipine mahogany are heavy compared to aviation spuce...think about it, Spruce goose? Light and strong.
Don't use kiln dried, softens the wood.
So where do you buy the composites and spruce in the lengths needed?
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