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Hull liner thickness inside for screws?

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sailgal
Captain

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USA
400 Posts

Initially Posted - 10/15/2004 : 10:10:43

I have numerous projects going on and was wondering if anyone new the thickness and or space between the innner hull liner and the outside of the boat in the following spots:

1. over counter and stove area under the window starboard side (for shelf bracket screws)

2. on both port and starboard side area between head and stanchion support rod and on the starboard side from sink to the stanchion rod. (the hull is molded to took like wood here) just above seat cushions.

3. over v berth I guess the anchor locker back. The flat area above the berth center.

I'm looking to stick short screws in all these spots, anyone know thickness or is there a hazard of seeing daylight no matter how short the screw?

Thanks!

Suzie, Tropical Sleigh

WB #619 Sarasota FL.

Edited by - on

Arlyn Stewart
Master Marine Consultant

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USA
2980 Posts

Response Posted - 10/15/2004 : 21:48:26

Hi Suzie, I have not punched any holes in any of these locations so sorry I can't be specific. Oscar used short screws when he mounted his screen mold curtain rods.

Maybe worth a call to Catalina.

My single piece of advice would be regarding the drilling, either use a shortened drill bit or add a dowel onto the drill bit so that the bit can only go as deep as desired.

Let us know what you find.

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Al
Captain

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USA
269 Posts

Response Posted - 10/16/2004 : 00:49:58

I just installed an articulated mounting arm for a flat screen TV on the area above the starboard cushion my '03 WK (my boat doesn't have the wood batten molded-in surface yours has, but I doubt that makes a difference). I used beefy screws, #14 x 3/4" I think, to attach the arm base to the bulkhead. There was at least 1/2" of space between the bulkhead and the hull.

I agree with Arlyn about putting some type of stop on the drill bit. Start with a very small bit, and proceed slowly until you drill through the bulkhead, then stop and pull the drill out. Use a toothpick or something similar to use as a depth gauge to poke in the hole to check the distance to the hull. I wouldn't do that just once, but every place you intend to put a screw. I'm sure you'll find plenty of room in there to accommodate short screws.

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Waterboy
Navigator

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USA
204 Posts

Response Posted - 10/16/2004 : 16:47:08

I've done enough things to make me feel silly that I've completely avoided drilling the hull for fear of "seeing daylight" ... ditto for the ballast tank. I've had pretty good luck sanding/abrading/grinding away the surface to fresh fiberglass (dremel tool is nice and precise for this), then using extra strength epoxy to bond the item to the hull. The removable/reusable 'dough' for mounting lightweight items on walls can be used to hold your item in place while the epoxy cures. I've bonded blocks of wood in areas where I really wanted to use a screw.

So far so good.

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Jeff McK
Captain

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USA
389 Posts

Response Posted - 10/19/2004 : 14:23:27

The only place I can confirm the thickness is on starboard cabin wall next to the hatch where there is a cutout for my compass. It appears to be about 3/16" to 1/4" thick. There is at least 3/8 " clearance to the next panel.

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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.