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Doryman
Joined: 03 Oct 2006 Posts: 3807 City/Region: Anacortes
State or Province: WA
C-Dory Year: 2006
C-Dory Model: 255 Tomcat
Vessel Name: Lori Ann
Photos: Lori Ann
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Posted: Mon Mar 08, 2010 10:24 am Post subject: Marine plywood advice |
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So I am planning to buy some marine plywood to make a new seat for my inflatable. I have no idea what to ask for and would appreciate advice as to type, etc. The only kind I have heard of is Okume, as it is used often for boat hulls but IDK if it is the best kind for my application.
Thanks,
Warren _________________ Doryman
M/V Lori Ann
TomCat 255, Hull #55, 150 Yamahas
Anacortes, WA
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Wandering Sagebrush
Joined: 21 Jan 2005 Posts: 2771 City/Region: Northeast Oregon
State or Province: OR
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Constant Craving
Photos: Constant Craving
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Posted: Mon Mar 08, 2010 10:57 am Post subject: |
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Warren, I am not sure that you need to invest in marine plywood for something like a seat. Okume, also called gaboon, if I remember correctly is pretty damned expensive, and if it is just a seat... is overkill.
Personally, I would go down to a local lumberyard and pick up some good european or Canadian birch ply. Something with no voids and about 8 layers. It's not that expensive. Cut to size, router radius the edges, sand and stain/varnish...
I have the remains of a sheet in my shop that is destined to be exactly that... a seat for the dinghy...
Steve _________________ "And in the end, it's not the years in your life that count. It's the life in your years." - Abraham Lincoln |
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Yellowstone
Joined: 07 Feb 2006 Posts: 475 City/Region: White Sulphur Springs
State or Province: MT
C-Dory Year: 1999
C-Dory Model: 22 Classic
Vessel Name: Farwest II
Photos: Farwest III
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Posted: Mon Mar 08, 2010 12:31 pm Post subject: |
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Warren - Steve's advice is sound. I've used marine plywood, including Okume, Douglas fir, and teak buiilding small craft. All are very expensive, especially teak ply. Okume is softer and stains nicely, but Doug fir is stronger but checks. The interior laminations of teak faced ply tend to be very solt. You can get cabinet grade Canadian birch ply in half inch thickness. That has nine laminations with very smooth outside surfaces.
If half inch is not enough structure for your dinghy's span, glue two pieces together. The laminations are glued with water proof glues. Also through trial and error, I have learned to create a teak stained finish on birch plywood. Start with dark walnut penetrating stain brushed or ragged on. Quickly, with clean, dry rags, rub the finish so it is even. Then follow with red oak penetrating stain and rub the finish in the same manner as before. The red oak blends in nicely and it looks like teak. You can experiment with small pieces of ply to arrive at the color you want. Make sure the surfaces are dry before putting any kind of sealer and/or exterior finish. The nice aspect of cabinet grade birch faced ply is that you need not sand the outer surfaces before you apply the final finish.
John _________________ hopelessly addicted C-Dory user |
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Adeline
Joined: 03 Nov 2003 Posts: 985 City/Region: Vancouver
State or Province: WA
C-Dory Year: 1989
C-Dory Model: 22 Cruiser
Vessel Name: Adeline
Photos: Adeline
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Posted: Mon Mar 08, 2010 5:23 pm Post subject: |
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Just stumbled onto this
Maybe ??? _________________ Pete
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UncleRichie
Joined: 02 Nov 2003 Posts: 155 City/Region: Bainbridge Is.
State or Province: WA
C-Dory Year: 2000
C-Dory Model: 22 Cruiser
Vessel Name: C-Critter
Photos: C-Critter
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Posted: Mon Mar 08, 2010 9:07 pm Post subject: |
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Hi,
How big a piece do you need have some real mahogany from old sail boat ? If I have a piece big enough you can have it.
Richard |
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Sea Wolf
Joined: 01 Nov 2003 Posts: 8650 City/Region: Redding
State or Province: CA
C-Dory Year: 1987
C-Dory Model: 22 Cruiser
Vessel Name: Sea Wolf
Photos: Sea Wolf
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Posted: Mon Mar 08, 2010 9:32 pm Post subject: |
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Adeline wrote: | Just stumbled onto this
Maybe ??? |
I have a seat like that for my Avon 280 Rover inflatable. It has downward tabs on the ends of the seat that fit down into fabric slots or belts that are integrated into the sides of the tanks. You'd have to have the correct inflatable to use it.
Joe. _________________ Sea Wolf, C-Brat #31
Lake Shasta, California
"Most of my money I spent on boats and women. The rest I squandered'. " -Annonymous |
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