We planning to use this 24" wide ikea sink cabinet: AKURUM Base cb f sink w 2 drs/fascia panel, white, Härlig white http://www.ikea.com/ca/en/catalog/products/S29867294/ with this sink: Ruvati RVM4130 Undermount 16 Gauge 25" Kitchen Sink Single Bowl http://www.ruvati.com/product-p/rvm4130.htm bought from efaucets.com Although the sink looks too large, the inside dimensions of the cabinet are 22.5" wide, and the dimensions of the sink bowl are 22 13/16" wide (CAD drawing measurements). So as you can see, it will only require minor shaving to fit the bowl in the cabinet, and some notching of the top side edges of the cabinet to fit the sink flanges. We will be using a sink setter to mount the sink to the underside of the granite counters, rather than standard brackets. We haven't installed the sink yet, but "hacking" cabinets to fit sinks of commonly done. The process we are planning to follow is discussed in detail in the ikeafans thread below - including photos: Here is a link that might be useful: Is this sink too big?

Nicole: If the end pieces I pictured above were missing, you'd be looking at an exposed cabinet style and the top and bottom rail on each end and a hole between the three. The drawer end covers the void and makes your eye continue the line from the doors upward. A flush piece in the void would have to fit perfectly, be finished matched, would not continue the line, and would therefore look stupid. You're not going to find any pictures because no one would ever go through that much work for something that's not going to look good. Here's a full size 33" apron sink properly mounted in a 36" cabinet. The distance from the cabinet end to the sink apron end will be 3" on your job, not the 1 1/2" pictured here which I admit doesn't look too bad. That sink was replaced by this short apron Elkay Quartz Luxe. The bottom of the apron now lines up with the adjacent drawer bottom, and there is virtually no cabinet face exposed which I think looks better. I made the customer find a factory painted color match trim (you provide, you agree color matches) which I installed above and flush with the top of the middle rail to fill the gap. That didn't have to fit nearly as nicely as flush side fillers would have to, because only the person reaching under the sink will ever see it.

Still, I only have a 27 inch sink base and the Kohler web site contains a typo that I asked them to correct. They said my sink needed a 36 inch base, it is only 25 by 22. As it seems with everything in this project, I still received wrong info in an email from them so I called. After a long while on the phone, a tech confirmed the sink should fit in the 27 base, should, no guarantee. We did have to carve the cab, a big no no, but this is one of those things everyone does so I am told. A large sink and a DW was important to me and I have a small space. Why don't you call Kohler before you cancel anything. I really wanted a white sink and still feel it was a gamble but it did fit after Dh carved the cabinet. I did get words from the granite fab about how large the sink was but they are working around it. Something to keep in mind is how heavy a cast iron sink is. Mine is still supported by the cab. There is also some good info on this forum about getting the bigget sink into the cab that you can. Good luck!

Rachiele makes one in copper or stainless, and they will do custom sizes (see link). They have a patent, but I honestly don't know what makes it so different than other options. Also, Kohler has this option on their Whitehaven (enameled cast iron) and Vault (stainless) 7" apron front sinks, but I'm not sure if their sizes would work for you. There may be other options, but those three definitely exist. Here is a link that might be useful: Rachiele apron for existing cabinets