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Best decking material for a new dock?

Old 01-17-2020, 03:32 PM
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Default Best decking material for a new dock?

Redoing dock and adding a lift. What the latest and greatest in decking? Previous owner of my house redecked it in 2016 and its shot already. Probably just Home Depot pressure treat.
one quote i received guy wants to use marine pressure treat and cap it in vinyl.
So what else is out there?
thanks JKaz
Old 01-17-2020, 05:35 PM
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Go poly. Trex or something similar. It will be the last time you do it unless a storm steals them.
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Old 01-17-2020, 05:36 PM
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We did our dock with Azek, no complaints really. Can't think of anything else that would work better.
Old 01-17-2020, 05:47 PM
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Worried about heat. Will be baking in Florida sun. I know trex can get stupid hot. Have used azack for other stuff never thought of it as decking material.
What else out there?
Old 01-17-2020, 05:52 PM
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Originally Posted by Kaz442 View Post
Worried about heat. Will be baking in Florida sun. I know trex can get stupid hot. Have used azack for other stuff never thought of it as decking material.
What else out there?
Are you against using ipe? Was never a fan of composites.
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Old 01-17-2020, 06:18 PM
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I am about to rebuild a deck and dock as well. Down to Tandeck or Trex Trancend.
Old 01-17-2020, 06:32 PM
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Trex had a class action suit years ago due to trapped mildew under surface. Might be double walled now but still uses organic material with plastic. Go inorganic, with rock. LumberRock has worked well.
Old 01-17-2020, 06:39 PM
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I had dinner last Friday night with a dock builder. He ran into a client while we were in the waiting line, and said their bid came in less than anticipated--$50K.

Most of the docks on our inland lake are concrete. And most of the decks on the boathouses are also concrete. I would think the average is $65K for a single boathouse with a 10' x 30' deck down low. Double boathouses are pushing $100K. We're talking steel framed and 4" tubing sunk into the lake bottom until it hits bedrock.

We have redocked our pier once since it was built 30 years ago, and I'm sorry that I used #2 5/4 x 6" pressure treated wood. I wish I'd used the best quality 5/4 x 6" wood I could find.

I have used Trex on a large deck at my city house, and I was pretty disappointed in it. It was very hot to the touch in the sun, and it wouldn't stay clean without pressure washing.often. The cost was the biggest negative about the stuff. There are also some other decking woods like IPE that would do a great job on a dock.

I need to redeck my pier in another year or so. I'm going to invest in a triple first class slanted dock ladder to get out of the water--$800.
Old 01-17-2020, 06:41 PM
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Concrete.
Old 01-17-2020, 07:02 PM
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My suggestion is ThruFlow:https://thruflow.com
I bought it and it's impressive. Very easy to install and should last for many years without any degradation.
Old 01-17-2020, 07:19 PM
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IPE works great. My parents have it on their dock and almost 20 years later looks like 5 years old. Also if you let it grey out from sun it’s fairly cool to the touch. I’m going to use it on mine when it’s time to redeck. It’s also gone underwater on several recent storms and no splitting or cupping.

I used Trex on the porch of my house, most is on a screened in porch and works well for that. The part that bakes in the sun is oh my god hot.
Old 01-18-2020, 03:48 AM
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6” Aluminum grousers
Old 01-18-2020, 04:15 AM
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What bamaman said-concrete

i built mine 20yrs ago with steel and pressure treated 2x lumber. The wood probably has less than 2-3 years life left. But that’s still pretty good. Composites get really hot.

ive seen some boathouses built with concrete decks that will likely outlive us all.
Old 01-18-2020, 04:37 AM
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Has anyone had any experience with fiberglass decking.. seems to be touted as a replacement for wood and metal, in moist/wet environments. I do see here in South Jersey decks attached to homes getting encapsulated in fiberglass. Look good when completed. Plenty of info on a Google search.
Old 01-18-2020, 04:41 AM
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Originally Posted by Bayfly View Post
My suggestion is ThruFlow:https://thruflow.com
I bought it and it's impressive. Very easy to install and should last for many years without any degradation.
while it’s impossible to answer the OPs question without more info (length, storm potential, depth) I agree with this.

just replaced a degraded 300’ dock in coastal NC that was eaten by Florence with Thruflow decking. 35% open space means
much less hydraulic pressure from waves. Survived Dorian with no issues. We shall see when we get a stronger storm.

Hog slat (concrete) is the only other thing I’d consider but they MUST be bolted down. After Florence there were lots of folks who thought they had indestructible hog slat docks where the sections floated and were scattered. Even though they are over 1000# they still will move.
Old 01-18-2020, 05:12 AM
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Does anyone have experience with Tandeck? I need to make a choice and 2 sellers who sell a bunch of other brands recommend it, but I don’t know anyone that has it.
Old 01-18-2020, 05:21 AM
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Ipe
Old 01-18-2020, 07:31 AM
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I have trex transcend on my deck and dock in SE Florida and very happy with it. Been about three years in. Does get hot on sunny days, but no hotter than wood. Looks as good as the day it was installed.
Old 01-18-2020, 07:51 AM
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Check the installation instructions, Composites in hot areas generally require closer joist spacing than wood.
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Old 01-18-2020, 11:24 AM
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I’m in the process of bidding out a new dock installation. All three recommended Tandeck.

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