Transom core Overkill?

drewpster

Commander
Joined
Oct 17, 2006
Messages
2,059
I am finally getting some supplies together to put my little tri-hull back together. I have my resin. The glass is on the way and the wood for the transom and the stringers. A question about my transom came to mind.
The original transom was built using a single 3/4" piece of plywood. The upper portion of the transom was doubled using a board nailed to the outside of the inner transom to give that area the thickness. The clamping area of the transom that accomodates the engine is two inches. The doubler under the splashwell originally made up this thickness. I was planning on building the replacement transom out of two pieces of 3/4 ply making the whole transom thicker than the original. Given the cost of the materials, you think building the thicker transom is overkill? I love the idea of having a rock solid transom but is this too much for such a small boat? The added weight could also be a concern.
BTW (16ft bowrider & 70hp engine)
 
Last edited:

TheWoodCrafter

Chief Petty Officer
Joined
Nov 20, 2007
Messages
414
Re: Transom core Overkill?

I don't think 2 layers of 3/4" plywood is overkill at all.
Safer is better than sorry.
You will have the plywood, it will not take that much more resin to laminate 2 pieces together.

Man 1 layer of 3/4" is pretty skimpy anyway.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Transom core Overkill?

i agree laminate. if you have enough ply turn the grains. will make it stronger.
 

jcsercsa

Captain
Joined
May 21, 2007
Messages
3,401
Re: Transom core Overkill?

Hay,glad to see your getting your parts to get going on her !! on mine it was 1 1/2 inchs from the factory , 15.6 foot tri-hull , make sure the wood is dry !! John
 

drewpster

Commander
Joined
Oct 17, 2006
Messages
2,059
Re: Transom core Overkill?

I realize now how underbuilt the transom was. I will go with the two layers. Thanks Drew
Pictures of progress to follow.:redface:
 
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