Maybe a dumb question but... |
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phatsat67
Grand Poobah Joined: March-13-2006 Location: Indiana Status: Offline Points: 6150 |
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Posted: September-15-2014 at 10:16am |
I believe everyone who has went by way of coosa has done the joint lamination process because the special order sizing of parts goes through the roof. Regardless when laminated stronger and more durable than wood.
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HatterBee
Gold Member Joined: April-29-2011 Location: Burgaw NC Status: Offline Points: 505 |
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Coosa can be laminated in layers splicing them together. You can also get sheets up to 12 feet long, you just might have to special order. I did mine in coosa and laminated the sheets together staggering joints where I needed.
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SNobsessed
Grand Poobah Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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I think the Coosa is laminated with layers & the splice joints are staggered. Search for JoeinNY's stringer thread to read more about this.
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Ben Franklin |
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barefootdan
Groupie Joined: January-31-2012 Location: Manteca CA Status: Offline Points: 92 |
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Ok so if I do go with the Coosa where can I find sheets long enough to go the whole length of the stringers? All that I seem to find is 4x8 sheets. Are you able to splice two pieces to make the whole distance? Wouldn't that make a possible weak spot in the stringers?
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phatsat67
Grand Poobah Joined: March-13-2006 Location: Indiana Status: Offline Points: 6150 |
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If it's way more expensive why not go with Coosa board and your kids, kids, grand kids wouldn't even have to re do the stringers again?
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barefootdan
Groupie Joined: January-31-2012 Location: Manteca CA Status: Offline Points: 92 |
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Well it's just for the fact that redwood doesn't seem to rot like other woods. I know its much more expensive but I plan on keeping this boat for a long, long time. I just thought I'd ask even though here in CA Doug fir is just down the road at home depot
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Dreaming
Platinum Member Joined: May-21-2010 Location: Tacoma, WA Status: Offline Points: 1870 |
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Douglas fir is usually the wood of choice, probably because of it's natural structural properties, and relatively cheap and obtainable nature. Redwood is probably not as available in other parts of the country as DF, so I am sure that at least plays into the decision for most. If you looked at structural tables, you might be able to determine if Redwood was as strong and as flexible as standard DF? the other possible issue that I can see is bonding, Redwood may have different bonding characteristics that would be less than favorable in an encapsulated stringer application. Lots of stringer jobs have been done, so a search would bring up the best ones to review. You can get the bottom of the stringer line matched to the hull by scribing(described a few times in the stringer threads) but for the tops, make measurements first, cut second. Take LOTS of pictures and measurements, no telling what you'll need to go back and look at after a couple of months of forgetting Any reason that you want to blaze a new trail with Redwood? LVL is a good option, as is COOSA, and I believe yellow pine has been used too. Maybe you're just asking the question, but probably not worth blazing a new trail on a subject that has been done successfully with other types of wood previously... my .02
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barefootdan
Groupie Joined: January-31-2012 Location: Manteca CA Status: Offline Points: 92 |
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This might sound dumb but is there any reason why redwood is not used for stringers? I will be replacing the stringers on my 1972 ski nautique promo boat soon and just thought id ask. Also just by looking at the stringers that are in the boat they are shot and I'm sure I won't be able to use them as a patten. Any advice or help would be much appreciated
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