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Got a stainless sink for a song, now to figure out how to mount it...

kingcobb

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Mar 4, 2026
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29
I picked up a Kraus 33 undermount 16 gauge stainless sink for next to nothing. Now I gotta figure out how to mount the thing.


Putting it in some kind of stainless countertop setup would be great but I doubt I'll fine one with a hole cut to fit it?

Its 33 inches x 19 inches.
 
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PCustoms

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Jul 23, 2011
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I picked up a Kraus 33 undermount 16 gauge stainless sink for next to nothing. Now I gotta figure out how to mount the thing.


Putting it in some kind of stainless countertop setup would be great but I doubt I'll fine one with a hole cut to fit it?

Its 33 inches x 19 inches.

I really don't understand the question.

Undermount sinks go under your countertop. Variety of little clips and doodads available to hold them in. IIRC I mounted mine with a "T" made from hardwood front to back in the cabinet, as I didn't want to screw/glue to the countertop.
 

BobnCO

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Apr 2, 2023
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They are mostly used on solid surface counters, The granite/marble guys adhere them to the underside. They have a lip, no reason you could not drop one in the top of a Formica counter and adhere down.
 

JohnX14

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Jun 2, 2014
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550
Location
Boston 'burbs
I picked up a Kraus 33 undermount 16 gauge stainless sink for next to nothing. Now I gotta figure out how to mount the thing.


Putting it in some kind of stainless countertop setup would be great but I doubt I'll fine one with a hole cut to fit it?

Its 33 inches x 19 inches.
Where are you looking to put this thing? You don't have a counter top either?
 
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kingcobb

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Mar 4, 2026
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29
Sorry, I am trying to figure out if there is a way to mount it onto a stainless steel countertop like a commercial one.

Its going in my shop.


I realize I could do a regular countertop, just trying to figure out if there is a source to do it with a stainless countertop.
 

PCustoms

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22,349
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Sorry, I am trying to figure out if there is a way to mount it onto a stainless steel countertop like a commercial one.

Its going in my shop.


I realize I could do a regular countertop, just trying to figure out if there is a source to do it with a stainless countertop.

There (sort of) is but if you have to asked the question I'm assuming it's beyond your abilities.

I've seen them set into a frame, glue applied and then formica run over the top of the flange. Then the formica is trimmed flush. With SS, you'd have to be spot on with the cut, or (ideally) weld the sink in the blend/grain the edges.

I believe your sink has a 3/4" or so lip. You could cut the hole, drop it in and add some support under it. It's a shop sink...
 

driftpin

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Dec 22, 2016
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Miami-Dade/Broward Co. Florida
In our So. FL kitchen, w/granite counters, the installer used lots of epoxy and did an undermount after the opening was cut in the granite. It took about 24 hours for the aroma of the mucilage to lessen. Still in-place 15 years later. It was a S.S. Franke sink.
 

OccupantRJ

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May 15, 2009
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Eastern North Carolina
A proper size hole could be cut into a fabricated stainless top and the sink set into the hole to rest on the flange. Or. Hole could be cut to allow the sink to be placed underneath by drilling holes in the flange in places and rosette welded to the top. This would require a neater hole and tedious deburring. The sink could also be attached with countersunk head stainless screws for the industrial look.
 

knucklehead 61

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Nov 14, 2024
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206
i believe i bought the same sink at our local used building materials place for my shop.
i haven't figured out how to mount mine either as it has a lip, but no clip mounting provisions.
not sure i want to spend the $$ on granite counters in my shop.
 
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BurtEggley

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Oct 8, 2024
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Puzzled by your question. Do you already have the countertop? It sounds like you don't have one, and are trying to design a workshop around a sink someone gave you for almost free. Around here stainless sinks are commonly discarded items when someone updates a kitchen. Then it sounds like you wondering if someone will next donate a stainless countertop with a hole already cut in it for the sink. I can't tell if this is pandering for a free stainless countertop, or a technical question on how to mount a sink. Which is it?
 
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kingcobb

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Mar 4, 2026
Messages
29
Puzzled by your question. Do you already have the countertop? It sounds like you don't have one, and are trying to design a workshop around a sink someone gave you for almost free. Around here stainless sinks are commonly discarded items when someone updates a kitchen. Then it sounds like you wondering if someone will next donate a stainless countertop with a hole already cut in it for the sink. I can't tell if this is pandering for a free stainless countertop, or a technical question on how to mount a sink. Which is it?
No all I am asking is if it is possible to get something in stainless to fit the sink as a countertop. At no point was i looking for someone to give me a countertop.
 

tarbellb

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Apr 17, 2011
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Oregon
Restaurant supply house sells all shapes and sizes, or check local listings

You will need some skill cutting the opening, the undermount style dont leave much for error even if you do go drop style (thin flanges)


On a positive note, I bought/installed a Kraus sink from HD a couple years ago. Came with faucet, accessories, etc.... all way nicer then the price I paid. Very happy with my setup.
 

The Cobbler

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Oct 24, 2013
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Niagara Region, Ontario, Canada
undermount sinks are meant to be glued to the bottom of solid surface tops . there are very few that have any kind of mechanical fastening .
for a shop sink in a stainless top I'd probably just use silicone and mount it underneath ( assuming the top is sturdy enough) or on top
for undermount... you could rig up some blocking fastened to the cabinets and shim it to be tight to the rim of the sink
 

mike93lx

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Dec 9, 2013
Messages
37,401
Location
Richmond, VA
My undermount is held on entirely with silicone. I recently had to redo it as it started separating after 22 years. It will certainly last til a remodel


The 2x4 in the Pic was just to evenly apply pressure and was removed after the silicone dried. Several months later and the sink still feels completely solid


5711.jpg


5709.jpg
 

atch

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Apr 4, 2006
Messages
842
Location
Columbia, Missouri
For everyone who responded here regarding glue/silicone: thank you. I've always wondered how undermount sinks were held in place and now I've been enlightened. I've never had and probably will never have an undermount sink, but now my education is furthered.

fwiw; I had a double bowl SS sink in my kitchen and when I got remarried the new sweetheart wanted a single bowl sink. Thus the Formica countertops and SS sink bit the dust. Now there are butcherblock counters and a Kohler cast iron porcelainized sink. It was all Sherry and I together could do to lift that sink and it was a real bear to install. I think it would have been easier to install a SS undermount sink.
 
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