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rabbitsnake
Cast iron sink on top of Quartz countertops
rabbitsnake

My kitchen needs new counter tops. Here's the current counters and sink.

I have an old cast-iron double drainboard sink that I would like to put on top of quartz countertops.
I plan to just put it on top of the quartz (rather than flush with the counter) and seal around the edge. The sink is very old (60+ years, no damage at all) and very heavy (~250 or more pounds). It originally sat on a metal cabinet (see picture above). Both my wife and I are tall and having extra height (even if it's an inch) on the sink is good for doing dishes.

Is this advisable? I have heard weight like this will crack the quartz, but I have also heard that it is very flexible and strong.

A. Spruce
Re: Cast iron sink on top of Quartz countertops
A. Spruce

I would say that you'd be ok to set that sink on top of stone counters, just don't let the stone carry the weight. Make sure that the cabinet is supporting the stone at all the contact points of the sink and you should be fine.

HoustonRemodeler
Re: Cast iron sink on top of Quartz countertops
HoustonRemodeler

^^ exactly correct. The stone should be fully supported with 3/4" (preferred) or 5/8" CC or better (NO CDX) plywood (no flakeboard or OSB) NEVER masonite, particle board, or MDF.

johnjh2o
Re: Cast iron sink on top of Quartz countertops
johnjh2o

That sink requires a rim. The clips that you have for the rim will not work on a quartz top due to the thickness of the top. They do make clips for thicker tops but there not that easy to find.

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