Any other options?

[5speedhemi]

Re: Any other options?

I would run it

port <-> startboard

Not length wise...

Thats what I was thinking too but riveting a support chanel around the perimeter to have solid structure to screw it to.

5 speed

 

[Bob_VT]

Re: Any other options?

Well you will never recoup the money spent regardless of the method you want to use and the OMC outdrive will actually drag the value down.

Depends on how much money you have to burn.

No one here said marine plywood was the only way to go .... you can use exterior plywood.... no one said to use epoxy on the wood for sealing it ...... and polyester resin is about half the price.

What is the primary purpose of using aluminum? The old wood lasted 20 years.

 

[5speedhemi]

Re: Any other options?

Well you will never recoup the money spent regardless of the method you want to use and the OMC outdrive will actually drag the value down.

Depends on how much money you have to burn.

No one here said marine plywood was the only way to go .... you can use exterior plywood.... no one said to use epoxy on the wood for sealing it ...... and polyester resin is about half the price.

What is the primary purpose of using aluminum? The old wood lasted 20 years.

Well Bob, it's a boat... Have you ever heard the saying.." If it flys, floats, or *****, it's cheaper to rent it"

Cutting corners on plywood grade or method of sealing it at the junction of replacing the floor just doesn't make sence.

Purposes for using aluminum: The hull is aluminum, It's lighter and stronger, It will never rot, It's unique in a boat, It's a lifetime investment and should help hold value especially in Aluminum boat, It's easier to work with than bulky plywood, it don't burn, and the best reason for me is I work with Aluminum everyday of my Aviation Career... 2nd nature

5 speed

 

[Azonic]

Re: Any other options?

Are you sayin that for your boat due to the understructer that exists to support the planks?
Or for any boat in general?

I did a 21 foot pontoon boat and ran them all length wise.

I only have one center stringer...

So length wise would way exceed the 30" max span...

with a beam of 54" I can just do the span width wise...

 

[thrillhouse700]

Re: Any other options?

Man we threw this idea around of making an aluminum deck that was removeable on our fiberglass tri-hull. Stupid expensive.............. Our deck has cost us roughly, 400 dollars, thats 4 pieces of plywood at 44.00, 5 gal of resin at 120 (of which we will have left over), and about 75 dollars worth of fiberglass. A contractors tube of PL premium, glass bubbles and cabosil.

The old deck with glass only on the top lasted for 30+ years. Ours is fully encapsulated with almost no exposed holes in it. should outlast the time that we have the boat.

 

[Bondo]

Re: Any other options?

Ours is fully encapsulated with almost no exposed holes in it.

Ayuh,.... Bingo ! ! ! !,.... The 1,+ only drawback to using plain ole Plywood,...
Right There....

If you keep the Holes that'll get drilled into the deck Sealed with something,...
A Plywood deck will Outlast your Grandchildren.....

 

[5speedhemi]

Re: Any other options?

LMAO... and they'll be eye balling Grandpa's boat!

5 speed

 

[JimbC]

Re: Any other options?

5speedhemi I've posted this link to this probably 3 or 4 times. I know it is posted and talked about in my resto thread. Give them a call ask for some samples they will send. Oh also the lady I spoke too told me they can make it to just about any size I need. There is also some that is already wrapped in glass. I think I was quoted 4x12x1/2 for $148 per sheet. Like I said call them and let them know what you want it for.
http://www.nyloboard.com/HOME/tabid/36/Default.aspx

 

[archbuilder]

Re: Any other options?

Interesting stuff, I wonder what kind of thermal expansion it has vs wood / polyester resin?

 

[thrillhouse700]

Re: Any other options?

Ayuh,.... Bingo ! ! ! !,.... The 1,+ only drawback to using plain ole Plywood,...
Right There....

If you keep the Holes that'll get drilled into the deck Sealed with something,...
A Plywood deck will Outlast your Grandchildren.....

yeah we filled all 6 of our deck holes with 5200.

 

[jeeperman]

Re: Any other options?

Man we threw this idea around of making an aluminum deck that was removeable on our fiberglass tri-hull. Stupid expensive.............. Our deck has cost us roughly, 400 dollars, thats 4 pieces of plywood at 44.00, 5 gal of resin at 120 (of which we will have left over), and about 75 dollars worth of fiberglass. A contractors tube of PL premium, glass bubbles and cabosil.

The old deck with glass only on the top lasted for 30+ years. Ours is fully encapsulated with almost no exposed holes in it. should outlast the time that we have the boat.

By the time the plywood is fully encapsulated with all that glass work, the wood isn't much more than a filler or spacer between the fiberglass. Like the web of an I-beam. Might as well encapsulate something way cheaper than good plywood like cardboard.

 

[thrillhouse700]

Re: Any other options?

By the time the plywood is fully encapsulated with all that glass work, the wood isn't much more than a filler or spacer between the fiberglass. Like the web of an I-beam. Might as well encapsulate something way cheaper than good plywood like cardboard.

Well, everyone has their way of doing it. How we did ours cardboard would never work. We used a 1 oz csm to encapsulate, then a layer of 1.5oz csm and some woven cloth for the finish. As it stands right now the deck has no flex or give. Cardboard would most def have give in it with that much glass on it. Cardboard doesnt have cross hatched grains to keep it strong. Just my logic I could be wrong.

I do like that aluminum decking tho, if I had money to burn that would prob be the best idea.

 

[Bondo]

Re: Any other options?

Might as well encapsulate something way cheaper than good plywood like cardboard.

Ayuh,... I've built a Ton of stuff using cardboard as a basis or form...
Just nothing I planned to Walk on....
Just no compressive strength in corrogated cardboard...

 

[archbuilder]

Re: Any other options?

I agree, I used cardboard tubes to stiffen my bow, but they were nothing more than "forms" to give me the correct shape. The glass I laid up on them formed members that will typically be in tension (glass is very good at absorbing tensile forces). The web in an I-beam is as you pointed out MOSTLY a "spacer" between the flanges in a simple span (simple span = supported on each end, a cantilever is completely different). However, there are other forces on it, most notably horizontal shear. A deck has direct compressive forces that require the material in the middle to transfer the forces to both the top and bottom skins, as well as act as a spacer. If it cannot resist the compressive forces, whatever is applying the load (your foot) will go right through both skins. Also remember the properties of the different materials. Steel is fairly balanced in its ability to absorb shear, tensile, and compressive loads. Wood and fiberglass have very different properties.