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 Bulkhead thickness		  New Topic  Reply to Topic
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Kittiwake
Deckhand

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5 Posts
Initially Posted - 07/07/2019 :  14:36:56  Show Profile  Reply with Quote
I am thinking of installing a opening port to ventilate the aft quarter berth.
Does anyone know the thickness of the bulkhead between the cockpit and the aft quarter berth?
I have an 86' SK, traditional interior.

Voyager
Master Marine Consultant

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USA
5231 Posts
Response Posted - 07/07/2019 :  18:57:56  Show Profile  Reply with Quote
To me it feels like about 1/2"-3/4". On Passage it does not appear to have any core between the outer and inner skin, sounds hollow. If you plan to add a 3" round vent, you might want to fill the space in between with foam or wood. If a porthole is more in line with what you need, definitely include a filler to give you a solid surface to work with.
Bruce Ross
Passage ~ SR-FK ~ C25 #5032

Port Captain — Milford, CT
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glivs
Admiral

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USA
822 Posts
Response Posted - 07/09/2019 :  10:11:31  Show Profile  Reply with Quote
Probably the first project after acquiring our boat was to rebed the portlight in the quarterberth...so I don't recall the details but...I do recall the thickness varied between top and bottom and as Voyager suspected, there was a sizeable gap between the inner and outer layers. I wedged in foam rope normally used as a window gasket (available in various diameters from any bldg supply store) all around the opening and then filled the gap with thickened epoxy. Other solutions that solve the same issue I suspect are equally as good at both stiffening the wall and sealing off the gap should any leaks occur around the new portlight. I don't know what portlight you have in mind but for our Beckson, I used SS barrel nuts to secure the frame; worked great.
Gerry & Leslie; Malletts Bay, VT
"Great Escape" 1989 C-25 SR/WK #5972
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.