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Thickness of Bulkhead

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frich
Captain

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USA
418 Posts

Initially Posted - 08/06/2002 : 14:24:23

I am getting ready to install (2) speakers on the cabin side of the bulkhead, Does anyone know the thickness of the teak on the port side near the gunwales. It is difficult to gauge while in place and I dont want bolts penetrating to the "head side" when I install my the speaker brackets.

I plan on posting this installation in the tech tips shortly, it was very easy, clean, and no cutting of fiberglass. And the system sounds great!

Thanks to all

Frank Rich
84 C25 SK

Edited by - frich on 08/06/2002 15:24:19

Edited by - on

John Mason
Admiral

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USA
687 Posts

Response Posted - 08/07/2002 : 16:11:28

I think it's 3/4" plywood - teak veneer, of course!

John Mason - Ali Paroosa
1982 - FK/SR #3290

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Buzz Maring
Master Marine Consultant

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USA
1768 Posts

Response Posted - 08/08/2002 : 01:03:34

Hi Frank,

I don't know for sure, but I don't think the teak plywood in the bulkhead is as thick as 3/4" ... I think it is closer to about 3/8". A previous owner cut a hole in my starboard side forward bulkhead, between the V-berth and the hanging locker. I don't know what he had in mind, but there is nothing there but an empty hole <img src=icon_smile_angry.gif border=0 align=middle>! I'm still trying to figure out how to cover it up.

Anyway, I'm going to the boat this weekend ... I can measure it if you would like ... just let me know. I suppose the plywood might be a different thickness, but that doesn't seem logical to me.

I'm looking forward to seeing your post in the Tech Tips ... I've got the same project on my never ending to-do list.

Good luck!

Buzz Maring, C-25 SK/SR #68, "Freya"

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frich
Captain

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USA
418 Posts

Response Posted - 08/08/2002 : 07:41:12

Buzz

I am going with a 3/8" #8 Pan head screw, the speakers are pretty heavy (bought them on E-Bay) If i go through the bulkhed I guess I will just put a bolt, which will probably give better support.

I will post the pictures shortly in the tech tips shortly

Thanks
Frank
Hi Frank,

I don't know for sure, but I don't think the teak plywood in the bulkhead is as thick as 3/4" ... I think it is closer to about 3/8". A previous owner cut a hole in my starboard side forward bulkhead, between the V-berth and the hanging locker. I don't know what he had in mind, but there is nothing there but an empty hole <img src=icon_smile_angry.gif border=0 align=middle>! I'm still trying to figure out how to cover it up.

Anyway, I'm going to the boat this weekend ... I can measure it if you would like ... just let me know. I suppose the plywood might be a different thickness, but that doesn't seem logical to me.

I'm looking forward to seeing your post in the Tech Tips ... I've got the same project on my never ending to-do list.

Good luck!

Buzz Maring, C-25 SK/SR #68, "Freya"
[/quote]

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Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts

Response Posted - 08/08/2002 : 10:07:46

The main saloon bulkheads (at the compression post) hold the upper shroud chainplates--I'm betting they're more than 3/8"--more likely 3/4". A ruler will tell the story--measure the compression post thickness, and then measure in on both sides of the post to the surface of the bulkhead. Then you can use an operation called "subtraction"... If you don't remember it, ask one of your kids for help! <img src=icon_smile_wink.gif border=0 align=middle>

Dave Bristle - 1985 C-25 #5032 SR-FK-Dinette "Passage" in SW CT

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Buzz Maring
Master Marine Consultant

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USA
1768 Posts

Response Posted - 08/08/2002 : 10:08:07

[quote]
the speakers are pretty heavy (bought them on E-Bay)
[quote]

I got mine on eBay, too ... I wonder if we have been bidding against each other! Did you by chance buy Bose 151 speakers? I haven't received mine yet, so I don't know how heavy they are. Do your speakers mount with brackets?

Thanks!

Buzz Maring, C-25 SK/SR #68, "Freya"

Edited by - buzz maring on 08/08/2002 10:09:43

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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 08/08/2002 : 17:23:19

I measured the forward starboard side bulkhead today and it measured 15/32", or just a hair over 7/16" and a hair under 1/2".

Don Lucier, North Star
C25 SR/FK

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frich
Captain

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USA
418 Posts

Response Posted - 08/09/2002 : 07:55:23

Buzz
No I bought those 300W outdoor speakers advertised for $37 from ikes sound, Bose is to rich for me, they sound ok

the speakers are pretty heavy (bought them on E-Bay)
<BLOCKQUOTE id=quote>quote:<hr height=1 noshade id=quote>

I got mine on eBay, too ... I wonder if we have been bidding against each other! Did you by chance buy Bose 151 speakers? I haven't received mine yet, so I don't know how heavy they are. Do your speakers mount with brackets?

Thanks!

Buzz Maring, C-25 SK/SR #68, "Freya"

Edited by - buzz maring on 08/08/2002 10:09:43
<hr height=1 noshade id=quote></BLOCKQUOTE id=quote>

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RichardG
Admiral

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USA
990 Posts

Response Posted - 08/09/2002 : 18:16:58

Frank:

"I'm still trying to figure out how to cover it up."

Hang a picture over it.

RichardG 81 C25 SR/FK "Sanity"

Edited by - RichardG on 08/09/2002 18:17:34

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