supporting a cantilever silestone countertop

gwaldMarch 27, 2011

hi - I'm trying to plan for a silestone counter top. At the end of the kitchen counter, I want about a foot of cantilever so that you can sit there with bar stools. I have 2 questions.

1. I assume that silestone will not support it's own weight cantilevering over the edge of the counter, and I'm planning a 3/4" plywood base. Will the silestone need this support?

2. If it needs the support, is 3/4" plywood enough or should I go thicker?

I looked at the specs on the silestone site, but I didn't see this explicitly.

thx for any help that you can offer!

rob

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brickeyee

Plywood has limited strength since half the layers are not doing much.

It is not the material "support it own weight"
but supporting the load of a person leaning down on the furthest edge of the material.

Corrugated cardboard can support it own weight, care to lean on it?

    Bookmark   March 27, 2011 at 7:13PM
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gwald

I'm not familiar with silestone, so that's why I'm asking. I don't have a feel about it's strength and if it was in the specs, I couldn't cull it out.

I'm sure that people do cantilever it for counters.

    Bookmark   March 27, 2011 at 11:59PM
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pinch_me

Post on the kitchen forum. They will know.

    Bookmark   March 28, 2011 at 6:00AM
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sierraeast

Assuming you aren't wanting brackets, there are ways of "letting in" support rods or flat metal runners to give support without being seen or interferring with your kness. Im not understanding why you aren't addressing this with your counter people. If they are reputable and experienced, they will know how to address this. If you are going the big box store route, maybe not.

    Bookmark   March 28, 2011 at 10:29AM
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Fori is not pleased

Towards the end of this kitchen forum link are some guidelines, but yes, your installer should know--make them do it and warranty it!

(Pretend Silestone is stone for these purposes.)

Here is a link that might be useful: kitchen forum stone link

    Bookmark   March 31, 2011 at 1:29PM
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