wood?

[Larry C]

Veneers used, glues, moisture content and a whole lot of money.....

At the risk of catching a lot of flak, I'll go out on a limb and say that for a tear, marine grade isn't necessary and I'd be willing to bet that very few do use it. I've used it as a overlay on top of my exterior grade ply sides, just because I wanted the mahogany. Living in Dayton, your humidity isn't so high that it is required for a build. Precautions should be taken to seal all the edges, whether it's marine grade or otherwise. I've used it on 4 of my tears for the sub floor and the walls, but used MDO on the last tear. Medium Density Overlay....takes on an epoxy coat great if you are doing a painted tear.

There are plenty of tears built from exterior grade that are doing just fine. I had a '49 Kit that I'm sure wasn't built from marine grade or exterior grade for all I know, and was in great shape after 40 years. It too was in a drier climate. Doug

marine grade ply is not necessary but for the few extra dollar you get a lot more than just waterproof adhesive. real marine grade is tested and certified. it has high grade core veneers and face veneers as thick as the core veneers. it's a much higher quality product all the way around whereas exterior grade is generally a lower quality product with a better glue.. the other factor is it's finish quality, hit it with 220 and your ready to go.. both faces too.

all things considered it's the best bang for the buck there is.. you get all the attributes of baltic birch with a real waterproof glue. can be had in many species, some that are half the weight of baltic birch and it comes in 4x8 and 4x10. you can also get it with the grain running across the panel if you want it.

I agree, Marine plywood is really the best choice. I have used it for kayak building with no issues. My problem is finding it. I am in Central NYS and it is impossible to find anyone that sells Okume plywood. I did find Baltic Birch, but I was told by the supplier that Baltic Birch is definately not exterior and will delaminate if exposed to any moisture. He showed me a piece of 1/8" that was damaged and discarded in their dumpster. It had rained a couple of times on it. It was warped and severely delaminated.
I still bought 4 sheets anyway, to use on the interior. I intend to seal everything with epoxy inside and out, with glass on the exterior. I am still looking for Okume ply within 150 mi.

[doug hodder]

That's all well and good, and I agree, probably the best choice.....but they can be built without it. Marine grade ply isn't always available all over the country.

[angib]

As it stands in Britain:
- marine and exterior use exactly the same glue;
- marine will have better, thicker face veneers than exterior (and more, thinner core veneers on thick plywood);
- marine won't have the internal repairs and voids that exterior is allowed to have.

It's the last of these that makes marine so valuable for boats - when continuously immersed, an internal void will attract moisture, even through an epoxy surface.

Andrew

[teardrop_focus]

^ ^ ^ Nice to see you, Andrew.

afreegreek

some that are half the weight of baltic birch and it comes in 4x8 and 4x10.

^ THIS.

I most definately am willing to pay a little more for these particular grades of plywood. And, since I am building a 9-footer, I'm also looking for (four, three to build with and one to doubley cover a possible mistake, then use for spars and bulkheads) 4 X 10.

Please! Could you provide any known sources or other industry names to possibly aid my local and regional search for "some that are [nearly] half the weight of bb and it comes in 4 X 10"?

I would appreciate any help in this area IMMENSELY.

[H@nk]

I bought 3 sheets 18 mm or 3/4, 5'x 10's for walls and floor.
For the inner seeling I bought 5 scheets 3 mm or 1/8 baltic birch.
The outside seeling is made of hardboard with epoxy with glass sheets.

[Classic Finn]

As it stands in Britain:
- marine and exterior use exactly the same glue;
- marine will have better, thicker face veneers than exterior (and more, thinner core veneers on thick plywood);
- marine won't have the internal repairs and voids that exterior is allowed to have.

It's the last of these that makes marine so valuable for boats - when continuously immersed, an internal void will attract moisture, even through an epoxy surface.

Andrew

As it stands in Finland: I couldnt agree with Andrew on this more. He is right on with his information.

This holds very true here in the Land of Finnish Plywood.

It's the last of these that makes marine so valuable for boats - when continuously immersed, an internal void will attract moisture, even through an epoxy surface.

Also for info: Ive used Marine Grade Finnish Ply on our tear. And the tear has been basically outside for many years already and nothing has gone bad on it so far. Have to make sure that the cut ends are sealed properly also.

Here in Finland the weather changes rapidly. Short Summers, Wet Fall, Long cold winters. And the Ply I used is still as new.

[afreegreek]

^ ^ ^ Nice to see you, Andrew.

afreegreek

some that are half the weight of baltic birch and it comes in 4x8 and 4x10.

^ THIS.

I most definately am willing to pay a little more for these particular grades of plywood. And, since I am building a 9-footer, I'm also looking for (four, three to build with and one to doubley cover a possible mistake, then use for spars and bulkheads) 4 X 10.

Please! Could you provide any known sources or other industry names to possibly aid my local and regional search for "some that are [nearly] half the weight of bb and it comes in 4 X 10"?

I would appreciate any help in this area IMMENSELY.

I'll ask the person who does the ordering at work tomorrow for the name and number of our supplier.. I know it's a US company.. as the wrapper is plastered with US flags.

[teardrop_focus]

afreegreek

I'll ask the person who does the ordering at work tomorrow for the name and number of our supplier.. I know it's a US company...

[omg]Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you...[/omg]

[afreegreek]

afreegreek

I'll ask the person who does the ordering at work tomorrow for the name and number of our supplier.. I know it's a US company...

[omg]Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you... Thank you, thank you, thank you...[/omg]

OK, didn't take me as long to find our sources name as it did to find the thread again...lol

anyway, here's our supplier.. you might contact them to get a local supplier who carries the same products..

http://www.westwindhardwood.com/price_marine_ply.php

[dh]

Out of my price range.

[Rock]

Wow - I consider myself fortunate for finding my Sapele plywood for $20/sheet!



Eric

[Blackjack]

WOW, not that is pretty plywood!

[KenC]

^ ^ ^ Nice to see you, Andrew.

afreegreek

some that are half the weight of baltic birch and it comes in 4x8 and 4x10.

^ THIS.

I most definately am willing to pay a little more for these particular grades of plywood. And, since I am building a 9-footer, I'm also looking for (four, three to build with and one to doubley cover a possible mistake, then use for spars and bulkheads) 4 X 10.

Please! Could you provide any known sources or other industry names to possibly aid my local and regional search for "some that are [nearly] half the weight of bb and it comes in 4 X 10"?

I would appreciate any help in this area IMMENSELY.

Here is a link to Frost Lumber, a local San Diego. Take a look, this is where I plan to purchase my wood for my 5 X 10 Benroy

http://www.frosthardwood.com/

[KenC]

^ ^ ^ Nice to see you, Andrew.

afreegreek

some that are half the weight of baltic birch and it comes in 4x8 and 4x10.

^ THIS.

I most definately am willing to pay a little more for these particular grades of plywood. And, since I am building a 9-footer, I'm also looking for (four, three to build with and one to doubley cover a possible mistake, then use for spars and bulkheads) 4 X 10.

Please! Could you provide any known sources or other industry names to possibly aid my local and regional search for "some that are [nearly] half the weight of bb and it comes in 4 X 10"?

I would appreciate any help in this area IMMENSELY.

Hi Chris

Here is a link to Frost Lumber, a local San Diego. Take a look, this is where I plan to purchase my wood for my 5 X 10 Benroy

http://www.frosthardwood.com/

Best Regards,

Ken

[teardrop_focus]

Thank you! very much, 'greek and Ken...



Pondering the product choices for a few days