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jtb
09-16-2009, 10:50 AM
I'm thinking of useing White pine for lapstrake planking and White Oak for framing. 17 ' lower hp outboard, in the water for up to 2 weeks at atime. local pine available in good widths and lengths. wondering about the use of the pine more than the oak, thanks.

ssor
09-16-2009, 12:58 PM
Pine isn't noted for its durability.

Thad
09-16-2009, 01:37 PM
What SSOR says is the standard line, but it shouldn't stop you. Stick with heartwood. Saturate with raw linseed oil (no thinner needed, many coats a day apart) to increase dimensional stability. Have fun!

Jay Greer
09-16-2009, 02:14 PM
Eastern White Pine, Pinus strobus, is an excellent planking wood for small boats. Being light in nature, it is a good choice for decking on medium sized yachts and has good rot resistance. By comparison, Western white pine, Pinus monticola, also known as sugar pine, has little or no rot resistance and is a poor choice for marine applications.
Jay

rob
09-16-2009, 02:18 PM
Sure white pine isn't at the top of the durability list but heartwood holds up reasonable well. It has been used for small boats many many times. I know of a whole bunch of rowing gigs done in it and they are holding up fine. small lapstrake boat with good air circulation.....no worries for many years.
It is hard to get clear heartwood as the sapwood band tends to be pretty wide on most logs....but it is out there. My biggest issue with pine is the strong difference between radial and tangential movement....this translates to very dtrong tendency to cup on any boards that pass near the pith (center) If you can get it try for either quarter sawn stock, or flat sawn well clear of center

Candyfloss
09-16-2009, 02:20 PM
Western white pine, Pinus monticola, also known as sugar pine, has little or no rot resistance and is a poor choice for marine applications.
Jay

As is imported New Zealand Pinus Radiata.

Graeme.

jtb
09-16-2009, 02:22 PM
I want to keep this straight forward as a project. Oak, Pine, maybe a ply garboard and Mahogany or Oak sheerstrake to better take all the fasteners,S.B., and copper.

Mrleft8
09-16-2009, 02:24 PM
Eastern White Pine is a perfectly fine choice for planking. Keep it painted, varnished, or oiled, and keep it clean and dry when it's not in the water, and you'll be fine.
The British Navy took "possesion" of all the best Eastern White Pine in the New England forrests before the revolution for spars and planking... Can't be such terrible stuff if the crown wanted it that bad....

Thorne
09-16-2009, 02:25 PM
Should work, what plan/design?

David Conard
09-16-2009, 02:26 PM
That's the benefit of living in New Hampshire. Mahogany won't grow in Vermont.

jtb
09-16-2009, 02:30 PM
you got me there!

Mrleft8
09-16-2009, 02:32 PM
That's the benefit of living in New Hampshire. Mahogany won't grow in Vermont.Sure it will..... Not up there in Burlington.... But in the extreme south east corner, right near the N.H./Vt./Ma. border there's a small grove of native Vermont Mahogany....Right near the Vermont Yankee Nuke plant.....:D:eek:

holzbt
09-16-2009, 02:34 PM
http://i90.photobucket.com/albums/k253/holzboat/Oak%20Island%20Skiff/P3310049.jpg
Eastern White Pine and White Oak skiff

http://www.woodenboat.com/forum/showthread.php?t=8645&highlight=new+boat+a+building Thread on building a pine/oak skiff. Scroll down for the photos.