teak swim platform

Good job Gary.
Interesting to see some of the formulas I studied in my college physics and fluid mechanics courses being put to actual use in a real world scenario. Refreshing also to see it done in long hand and not copied/pasted from some Googled site.
We could actually picture you sitting at the kitchen table scribbling out the notes and equations. Kudos.
 
billnpat said:
Same type here, no snaps on mine :thumbsup:
Click to expand...

Are snaps a bad thing? I got a quote yesterday from www.snapincarpet.com for my swim platform and I'm going to do it. It will be a nice, comfortable touch. However, should I just get rubber backing, or is going the "snap" route a bad thing. It's a 23' BR with a generous platform and will be used on a lake nearly all the time.

Thanks in advance.
 
Rono007 said:
Are snaps a bad thing? I got a quote yesterday from www.snapincarpet.com for my swim platform and I'm going to do it. It will be a nice, comfortable touch. However, should I just get rubber backing, or is going the "snap" route a bad thing. It's a 23' BR with a generous platform and will be used on a lake nearly all the time.

Thanks in advance.
Click to expand...

Snaps aren't really bad. But as mentioned above (OK, way above as we got off track... a bit:smt001) there was a good point about not wanting to sit on them or walk on them if the carpet isn't there. Now, if you plan on leaving the carpet there all the time, then that obviously isn't a concern.

Whether you need snaps, or not, depends on how the carpet will get used. Will it stay there while underway? Will it stay there when you are not using the boat? My gut tells me a carpet of your size should probably be held down in some way or another in those cases.
 
Thanks Dennis. Yea, a bit off track and a bit over my head for my size boat.

I'm sure the carpet will remain most of the time - no reason not to, and no place to really stow it while wet. I guess my concern is rust. Will the snaps rust, or are the snaps a viable solution to holding my carpet in place on the platform? Here is the stock photo of the platform. I know my 2 little girls will be using it a lot!

230BR-SWIM01.jpg
 
Rono007 said:
Thanks Dennis. Yea, a bit off track and a bit over my head for my size boat.

I'm sure the carpet will remain most of the time - no reason not to, and no place to really stow it while wet. I guess my concern is rust. Will the snaps rust, or are the snaps a viable solution to holding my carpet in place on the platform? Here is the stock photo of the platform. I know my 2 little girls will be using it a lot!

230BR-SWIM01.jpg
Click to expand...

No, you are "on track" - it's the rest of us that went off talking about "upside down cups". Well, at least I was... :lol:

Assuming you get SS snaps (like the cockpit floor or cockpit cover) they won't rust (I guess I shouldn't say "won't"... but no worries, they'll be fine).

A few, well placed snaps should be all you'll need. Just in case you'll be taking it up from time to time, I'd try to keep the snaps away from aft edge of the platform, if you can. Just to avoid stepping/sitting on them. You can always add more if you need to.

You could always have small tabs sewn in that fold over the aft edge of the platform and attach to snaps on the vertical, aft edge of the platform.

But, really, any combination of snaps/tabs/whatever that you choose would work. One way isn't really better than another - what works for you is what's important.

On your upper platform, you may be able to incorporate the cockpit cover's snaps.
 
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Good advice. Thanks Dennis. I never thought of the comfort part of placing snaps on the aft edge of the platform. I'm sure my wife and others will be sitting there from time to time. Less is more and that's how I will start.

Thanks again. I'm new to boating again after 20 years away, and this is our first boat as a family. we're excited.

Is it April yet?
 
Woody said:
Four Suns commented on the size of his platform mount bolts so my comments are about the forces at the connection of the cantilevered swim platform to the stern. This discussion places a fulcrum at the stern. While you are correct the reaction force at that point would include the weight of the platform it doesn’t remove the downward force itself or the stresses that force puts on the bolts. The bolts would be subject to the stresses generated by the net of the upward and downward forces.
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Woody,

I'm not trying to beat a dead horse. I had come to to the conclusion that Gary was initially correct. Earlier, I was trying to correct the inaccuracy in his final post that the swim platform weight was relevant in evaluating the overall effect of any buoyancy force created by trapped air under the platform.

Your post prompted me to dig out a couple of old text books. You referred to the swim platform as a cantilever. Granted it is a beam attached firmly at only one end, and therefor meets the first requirement. However, what it is attached to (the boat) is not rigid and thus the second requirement of a cantilever, i.e. attachment to an immovable fixed point, is not met. It is closer to a teeter-totter, except the location of the pivot point changes. Push up on the swim platform and the bow goes down, and vice versa. Evaluating the load on the swim platform boat interface is no longer simple, and has to be considered in the context of what is happening to the whole system.

Henry
 
Not to get off topic, but like this. I would love to just have this done on the steps and platform. There is carpet for the rest.
 

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Dancin Dave said:
Not to get off topic, but like this. I would love to just have this done on the steps and platform. There is carpet for the rest.
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BEAUTIFUL....WOW:smt038
 
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