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boards on dock getting old

Old 09-07-2015, 05:07 AM
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Default boards on dock getting old

The boards on my dock are pretty aged. A few bad splinters have resulted. What would your suggestion be? Should I replace the boards? Is there a good way to sand them down? If I replace them what type of boards should I get and where?

Also, the pilings have a black plastic coating wrapped around them but most of them are falling off. How important are they? Should I try strapping them back around the pilings, or just remove them?

See attached pics. Thanks for any advice.
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Old 09-07-2015, 05:10 AM
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The black plastic protects from damage do to life, like worms, oysters, barnacles...It keeps the pilings from rotting away. The boards,pressure treated and later seal them after about 3 months of weathering, Big box store is fine, replace with wood is cheapest, 10-15 years is expected............
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Old 09-07-2015, 05:12 AM
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Don't see any pics, I just replaced all the old2x6 on my 125 foo dock with new treated wood. The 36 inch boards were only supported on the ends so I went with wood. If I support every 16 inches I would spend the money on composite decking.
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Old 09-07-2015, 05:15 AM
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I have the same problem. I'm replacing with composite decking.
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Old 09-07-2015, 05:43 AM
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I had the same situation and used rustoleum restore on the entire dock. Didn't do it as per manufacturer's recommendations (no rain for a few days, 2 coats, etc) and a year later, it's still pretty good. I also drove all screws down and reattached some boards. Not a permanent solution but you should be able to delay replacing all the boards if you want to put a weekend of sweat equity into coating the dock.
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Old 09-07-2015, 05:57 AM
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I pulled mine up and flipped them over. screwed them down vs. nailing.
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Old 09-07-2015, 06:01 AM
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The dock is certainly old but has a lot of life left. I would pull up the few boards that are rough and giving you splinters and replaces them with some pressure treated lumber from your local hardware.
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Old 09-07-2015, 06:01 AM
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Originally Posted by lowelife View Post
I pulled mine up and flipped them over. screwed them down vs. nailing.
I was about to suggest this try a couple you will be surprised the other side looks fine.
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Old 09-07-2015, 06:18 AM
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Yours are looking pretty bad. The good thing is you can replace them a little at a time while still using the dock. My buddy took two moths replacing his a few at a time. Biggest problem is the new salt treated will not last as long as the old stuff.
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Old 09-07-2015, 06:21 AM
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Originally Posted by lowelife View Post
I pulled mine up and flipped them over. screwed them down vs. nailing.
Screws are great until its time to remove them and then they are a pain. What he has is working just fine and much easier when time to remove.
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Old 09-07-2015, 06:41 AM
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Originally Posted by HarleyFLHP View Post
I have the same problem. I'm replacing with composite decking.
First thing that came to my mind was composite as well.
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Old 09-07-2015, 08:31 AM
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Go rent a big floor sander and spend an afternoon sanding.
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Old 09-07-2015, 08:34 AM
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Know anybody with a power planer? Probably faster to pull the board, run it through the planer and then reattach vs. trying to sand something that rough. The bonus is you can look at the supports more easily.
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Old 09-07-2015, 08:48 AM
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Just replace the bad boards...If you flip them over they may curl, grain always needs to be arched round side up.upside down "u" other wise it will be a pain in the ass.
Keeping them sealed prevents what you have.
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Old 09-07-2015, 08:49 AM
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DO NOT USE SCREWS EVER!! Only the installer thinks they are a good idea...Usually because he will not have to remove them!!!!!!!!!!! composit is different, that gets screws.....And is better off predrilled. Been there a couple times!
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Old 09-07-2015, 08:59 AM
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done it all ways......wood lasts as long as you take care. Composite same thing ....
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Old 09-07-2015, 09:14 AM
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I flipped mine, stainless screws back in, no problems at all, some have been done for 5 years. I just had to pull 2 yesterday and no problems getting screws out.
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Old 09-07-2015, 09:49 AM
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If you want to postpone reskinning it a few years, replace the real bad boards, clean the rest, then coat with one of the heavy paint products. That should buy you a few years. The one picture didn't appear to be in all that bad shape, but the pic of that one board needed replacement.
Relative to fasteners, use SS screws. They're by far easier to remove without damaging the board and can go right back. Heck of a lot easier than a ring shank nail, anyway.
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Old 09-07-2015, 09:59 AM
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Originally Posted by coastboater View Post
Relative to fasteners, use SS screws. They're by far easier to remove without damaging the board and can go right back. Heck of a lot easier than a ring shank nail, anyway.
Agree. Sort of. The problem with stainless is that there is a lot of crap Chinese stainless that is very brittle - not exactly the material you want in a screw.

The absolute best fasteners use a Torqx head. Phillips and square heads don't last. If you're going to spend the money, get a decent product.

I've also had good luck with the epoxy coated screws. Easier to find than SS. Just disassembled a wooden kayak frame where the wood rotted after 10 years, but the epoxy coated torqx head screws pulled right out.
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Old 09-07-2015, 10:04 AM
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Originally Posted by lowelife View Post
I pulled mine up and flipped them over. screwed them down vs. nailing.
i've done this and it works, but it's more work than replacing with new boards. at least mine was, the old nails were sticking out on the bottom side on a lot of the boards,and it was a PITA to remove and/or drive em below the surface.
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