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Old 09-02-2013, 05:13 PM   #1
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Black walnut for outside use


Hey guys

I'm building a bar outside on my deck. I've ordered a black walnut countertop to be cut and joined, ill be doing the sanding and finishing myself
Can someone give me good advice as to how to finish it off seeing as its for external use and probably will be exposed to sunlight etc
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Old 09-02-2013, 05:28 PM   #2
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Black walnut for outside use


Going to end up with a high mantaince top.
There's many far better choices that could be sealed with just an oiled surface so your not having to sand and reseal all the time.
If you insist on do this then Bristol finish is the best you can buy.
Going to cost about $70.00 a qt. but well worth every penny.

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Old 09-02-2013, 07:01 PM   #3
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Black walnut for outside use


We don't know your location or what type of look you want.

If you want a weathered look, you may just be able to leave it alone.

Will you be using some rough sawn lumber or are you looking to build some fine cabinetry, then keep it looking that way?
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Old 09-03-2013, 07:14 AM   #4
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Black walnut for outside use


I'm getting a piece cut for me than I'm going to sand it down and finish it myself.

I'm based in Ontario Canada
I'm open to other suggestions as to what to use as a countertop
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Old 09-03-2013, 07:47 AM   #5
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Black walnut for outside use


Quote:
Originally Posted by alangolding25 View Post
I'm getting a piece cut for me than I'm going to sand it down and finish it myself.

I'm based in Ontario Canada
I'm open to other suggestions as to what to use as a countertop
I find walnut to be not so weather resistant so my preference would be mahogany with a hot paraffin finish.
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Old 09-03-2013, 07:52 AM   #6
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Black walnut for outside use


What ever finish you use make sure it has UV protection in it.
If it is going to be left exposed to the weather year round I would count on replacing it in a few years. At least make it slightly off level so the water will drain off it.
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Old 09-03-2013, 09:25 AM   #7
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Black walnut for outside use


I wonder how NeverWet, by Rustoleum, would do in this case?
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Old 09-03-2013, 07:04 PM   #8
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Black walnut for outside use


Thanks for all the responses.


I decided to heed all of your advise and cancelled my order for the black walnut. I'm going to go with cedar or mahogany (of not too expensive)

Two questions

1) in order to affix the countertop do I get a flat piece of chipboard (or something similar) and screw it to the 4 corners then use wood glue for the countertop on top?

2) in terms of the unfinished corners (you can see the gaps) I was thinking of getting a white mortar and touching up and rounding off the edges?
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Old 09-03-2013, 07:39 PM   #9
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Black walnut for outside use


That top part should have been built just like as if you were framing a deck.
The way it looks now there's nothing to keep those two outside 4 X 4's from moving and nothing to support a top on.
Teak, IPE, Cumaru are some other chooses.
http://www.mataverdedecking.com/comp...ce-comparison/
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Old 09-04-2013, 08:24 AM   #10
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Black walnut for outside use


As someone that has owned boats for decades I would not recommend using a wood counter outside. You're just asking for trouble with on-going maintenance. You'd do well to treat it like boat brightwork, with layers of marine-grade finish applied to it. And you'll have to be refreshing this every year. And if you try to put a cover on it then you'll have to deal with how that and moisture causes the finish to get cloudy looking. Requiring even more maintenance.
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Old 09-04-2013, 08:27 AM   #11
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So does anyone have any solution or am I doomed to having no countertop?
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Old 09-04-2013, 08:40 AM   #12
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I'm considering using Neolith porcelain slab for the counter we'll be building next year for our outdoor barbeque bar/kitchen.

http://www.thesize.es/web/index.php?pg=2
http://hgstones.com/shop/timber-night/
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Old 09-04-2013, 10:59 AM   #13
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For the stone cladding, they sell corner pieces. That's what you start with, and work the rest of it around the corners.


Porcelain tile or a slab of a dark relatively non porous granite like Uba Tuba or Absolute Black would be just fine for an exterior counter. Or you could do a sheet copper and let it weather to a patina. Or you could do stainless and not worry about patina at all. Plain painted treated plywood with a sheet of tempered glass that you store in the off season would also be an option, but not as cheap as you think.

You need to create some reinforcement for the base and counter first before worrying about which counter material. It needs cross bracing, and you need to be sure the deck can actually carry the weight as well. You do live in a location where snow load is a reality, and the deck might not support all of that and a slab of stone too. Is the bar fastened into the joists with lag bolts? I see the flanges, but if that's not into the joists, it needs to be. And if the bar is to have a counter overhang, you will need to engineer the support for that overhang, which means something metal cantilevered, or remove the stone for corbels or brackets to be installed. If no overhang, then just the cross pieces and fastening it to the deck would probably be OK.
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Old 09-04-2013, 12:49 PM   #14
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+1 on the deck below being able to safely carry the weight of it and all the people and stuff that's going to be with it. This would be a reason to use a veneered surface instead of stone slabs or tile (they're HEAVY).
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Old 04-27-2014, 07:15 AM   #15
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Too late now but finger jointing stones on corners like you see on a brick house corner would eliminate need for mortar

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