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Ron Tock
 
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Default New dock question

Need to build a new dock. Old one is just about done.
It'll be a floater like the old one.
The question is wheather pressure treated wood or
cedar is better. The problem with pressure treated is the arsnic
content. For a dock that swimmers and skiers will be sitting on and
pulling themselves up on, that's not so good. Cannot always get
pressure treated without arsnic.
How well does cedar hold up to extreme weather condiitions.
Fresh water, Canadian winters and all that.

TIA
  #2   Report Post  
RicodJour
 
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Ron Tock wrote:
Need to build a new dock. Old one is just about done.
It'll be a floater like the old one.
The question is wheather pressure treated wood or
cedar is better. The problem with pressure treated is the arsnic
content. For a dock that swimmers and skiers will be sitting on and
pulling themselves up on, that's not so good. Cannot always get
pressure treated without arsnic.
How well does cedar hold up to extreme weather condiitions.
Fresh water, Canadian winters and all that.


When you factor in longevity, splinters, maintenance and the like, you
may want to look at a composite material. It may very well be worth
the extra cost.

R

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Ron Tock
 
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RicodJour wrote:

Ron Tock wrote:

Need to build a new dock. Old one is just about done.
It'll be a floater like the old one.
The question is wheather pressure treated wood or
cedar is better. The problem with pressure treated is the arsnic
content. For a dock that swimmers and skiers will be sitting on and
pulling themselves up on, that's not so good. Cannot always get
pressure treated without arsnic.
How well does cedar hold up to extreme weather condiitions.
Fresh water, Canadian winters and all that.



When you factor in longevity, splinters, maintenance and the like, you
may want to look at a composite material. It may very well be worth
the extra cost.

I realize that but that's not what I want to do. Any other takers?
Cedar or treated?
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Goedjn
 
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Default

On 8 Jul 2005 06:12:34 -0700, "RicodJour"
wrote:

Ron Tock wrote:
Need to build a new dock. Old one is just about done.
It'll be a floater like the old one.
The question is wheather pressure treated wood or
cedar is better. The problem with pressure treated is the arsnic
content. For a dock that swimmers and skiers will be sitting on and
pulling themselves up on, that's not so good. Cannot always get
pressure treated without arsnic.
How well does cedar hold up to extreme weather condiitions.
Fresh water, Canadian winters and all that.



Red Pine, painted with hull-paint, ought to hold up as well
as any other common species. By the way, the arsenic in the
wood is a non-issue for casual human contact. Decades of
immersion might leach enough out to have a detectable effect
on the lakes ecosystem.

  #5   Report Post  
m Ransley
 
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Default

Treated lasts longer. I thought CCA is no longer available, it is now
something less toxic and stainless fasteners are best.



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toller
 
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Cedar is pretty soft and won't hold up to heavy use.

Docks around here are all PT. I doubt you can find wood with arsenic, even
in Canada, but it is pretty harmless unless you eat it.


  #7   Report Post  
Chip C
 
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Default



Ron Tock wrote:
Need to build a new dock. Old one is just about done.
It'll be a floater like the old one.
The question is wheather pressure treated wood or
cedar is better. The problem with pressure treated is the arsnic
content. For a dock that swimmers and skiers will be sitting on and
pulling themselves up on, that's not so good. Cannot always get
pressure treated without arsnic.
How well does cedar hold up to extreme weather condiitions.
Fresh water, Canadian winters and all that.

TIA


The hard science of whether a PT dock will kill someone is secondary to
perceptions. Sooner or later you'll have a guest that won't let their
kids play on it if it's PT, and sooner or later the local newspaper
will report that mysterious substance X is in the lake and maybe it's
coming from someone's PT dock. Nothing will beat being able to say that
your deck is just good old 100% cedar as you put your feet up in your
Muskoka chair and open another Blue Lite.

Chip C
Toronto

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calhoun
 
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All new treated wood is ACQ. You need dipped fasteners and hardware but all
dock hardware is dipped already. Arsenic is a thing of the past. But that is
in US just noticed your up north.
Go with the treated. I have built many and never had a problem. Composite
requires 16OC centers or it will sag. Depending on your flotation system it
may be difficult to get framing that close together. You can span almost 3'
with a treated 2x6.

"Ron Tock" wrote in message
...
Need to build a new dock. Old one is just about done.
It'll be a floater like the old one.
The question is wheather pressure treated wood or
cedar is better. The problem with pressure treated is the arsnic content.
For a dock that swimmers and skiers will be sitting on and pulling
themselves up on, that's not so good. Cannot always get pressure treated
without arsnic.
How well does cedar hold up to extreme weather condiitions.
Fresh water, Canadian winters and all that.

TIA



  #10   Report Post  
Stu
 
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Default

On Fri, 08 Jul 2005 13:07:20 GMT, Ron Tock
wrote:

Need to build a new dock. Old one is just about done.
It'll be a floater like the old one.
The question is wheather pressure treated wood or
cedar is better. The problem with pressure treated is the arsnic
content. For a dock that swimmers and skiers will be sitting on and
pulling themselves up on, that's not so good. Cannot always get
pressure treated without arsnic.
How well does cedar hold up to extreme weather condiitions.
Fresh water, Canadian winters and all that.

TIA


I have never built a dock so can't speak directly to that but have had
splinters from both CCA and cedar (arsenic is no longer used for
pressure treating in the US). The cedar splinters (IMO) are a real
bitch compared to pine. Either way I suggest you use a good marine
finish on whatever you choose. Several coats of marine paint or
varnish would reduce splintering.

Have you considered using cypress?


  #11   Report Post  
RicodJour
 
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m Ransley wrote:
Treated lasts longer. I thought CCA is no longer available, it is now
something less toxic and stainless fasteners are best.


Still plenty toxic. The MSDS on ACQ:
http://www.ufpi.com/literature/acqmsds-200.pdf

Section 8 is the applicable one for a fresh water lake.

To the OP: What you want to do, and what you should do, are not
necessarily the same thing.

R

  #12   Report Post  
RicodJour
 
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Default

Goedjn wrote:

Red Pine, painted with hull-paint, ought to hold up as well
as any other common species.


Hull-paint? You mean a marine topsides paint? A bit expensive, no?

By the way, the arsenic in the
wood is a non-issue for casual human contact. Decades of
immersion might leach enough out to have a detectable effect
on the lakes ecosystem.


Hey, buddy, I'm just going to pee a little bit in your pool...mind if I
come over tomorrow?

R

  #13   Report Post  
Ron Tock
 
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Default


Chip C wrote in message
ups.com...


Ron Tock wrote:
Need to build a new dock. Old one is just about done.
It'll be a floater like the old one.
The question is wheather pressure treated wood or
cedar is better. The problem with pressure treated is the arsnic
content. For a dock that swimmers and skiers will be sitting on and
pulling themselves up on, that's not so good. Cannot always get
pressure treated without arsnic.
How well does cedar hold up to extreme weather condiitions.
Fresh water, Canadian winters and all that.

TIA


The hard science of whether a PT dock will kill someone is secondary to
perceptions. Sooner or later you'll have a guest that won't let their
kids play on it if it's PT, and sooner or later the local newspaper
will report that mysterious substance X is in the lake and maybe it's
coming from someone's PT dock. Nothing will beat being able to say that
your deck is just good old 100% cedar as you put your feet up in your
Muskoka chair and open another Blue Lite.

Chip C
Toronto


Hi Chip.
Greetings from Crane.


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