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Hello everyone
I was wondering if anybody out there has any advice for installing a heavy cast iron undermount sink under a 3/4 inch thick Fireslate TM. (concrete) countertop. My concern is that by only using clips I will stress the concrete and it may crack or break.
Any advice would be appreciated.
Ken Karate
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somebody Please help. I am trying to install an undermount sink in my new kitchen. The only thing between me and a homecooked meal is this sink deal. The sink is very heavy and its supposed to be attached with clips to a 3/4 inch thick concrete counter. Any advice?? thanks
Ken
*ken- back up the underside of the sink with some cleats screwed to the sides of the cabinet the sink sits in
*You need to build a carriage from metal or wood sufficient to carry the weight of the sink at the right level within the base cabinet. then set the sink. Then seat the top.this can be one where you need the plumber, carpenter, and countertop man all in the room at the same time.
*First you install the 3/4 plywood. Then you cut out the sink bowl and route the rim into the ply so that the sink is flush with the top.Then you lay the concrete or granite or marble or whatever over the ply, making sure that you have a good bead of silicone over the rim to seat the top onto without leaks.Gabe
*I agree with the cleat idea. We used that for our undermount sink in a concrete counter. In our case, we tried using expoxy anchors to hold the sink in, but it didn't seem sturdy enough. First step, do a dry run and use some cripples (1x2 or 2x4) to wedge the sink up to where you want it located. (This assumes the counter is already installed) Then measure and cut the cleats. The cleats will span between the sides of the carcass and the bottom edge of the sink rim will then sit on the top edge of the cleats, essentially sandwiching the sink between the counter and the cleat. We used 1x3 poplar, biscuited and glued into 1x3 poplar sides which then face screwed into the cabinet sides. Our sink was a lightweight Americast, though. You may want to build substructure to bear the sink weight onto the floor of the cabinet.When you have you substructure finished, re set the sink with the cripples, this time with a generous bead of caulk. Wedge in the cripples firmly and then install the framework.It's a pain working in underneath there, though. Wished I'd just cast in some nailers into the bottom of the slab...Robert AsherOscilloscope
*By the way, what is "fireslate"?
*Robert- I run my cleats front to back- you can screw directly thru the cleat into side of cabinet. depending on size of cab & sink, may need to double up cleat.
*It's a new (to me any way) man made smooth surface material that looks like slate and wont break the budget. More appropriate around a wood stove but ok for cetain decor.
*Fireslate is what the lab tables and countertops are made of in chemistry classes. The company has gone into residential fabrication now, too, and has a website somewhere that you can get more information from. Think it's just http://www.fireslate.com.
*Hey Guys, thanks for the tips on installing the undermount sink to the fireslate counter-top
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Hello everyone
I was wondering if anybody out there has any advice for installing a heavy cast iron undermount sink under a 3/4 inch thick Fireslate TM. (concrete) countertop. My concern is that by only using clips I will stress the concrete and it may crack or break.
Any advice would be appreciated.
Ken Karate