Corner kitchen sink, cabinet

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Forum topic by Ben posted 07-01-2016 07:48 PM 284 views 0 times favorited 2 replies Add to Favorites Watch
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242 posts in 2277 days

07-01-2016 07:48 PM

Hey all,
I’m building a new kitchen for some neighbors.
They want a corner sink. I have tried to talk them out of this to no success.

I was able to talk them into making the cabinetry meet at a 90 degree inside corner, rather than a 45 degree leg, as the sink is two basins, each side of the corner.

So my questions:

(how best to construct the inside corner of the cabinetry for access under the sink, and support of counter top.
Should the door be a 1 piece that spans both cabinets? Or maybe sliding doors on tracks?

The DW is spec’d to be to the right of the sink, but past a drawer bank, so that it can be opened while standing at the sink. This of course means I’ll have to fish plumbing behind the drawers to the DW.

I think this design is goofy at best, but it’s what they want.
Much like THIS:

Any suggestions would be appreciated.

2 replies so far

View JBrow's profile


745 posts in 340 days

#1 posted 07-02-2016 01:49 AM


I agree that the design of the sink, especially if this is the main working kitchen sink, is impractical. I wonder how many dishes will get broken on the faucet before they have you building a more conventional cabinet. My other thought is whether this design creates problems for installing the dishwasher. Oh well, I suppose since you have already discussed the problems with the neighbors, the only thing left to do is build the cabinet.

Before finalizing the design, it would seem critical to have the sink on hand, or at the very least, installer notes and instructions that accompany the sink. If the sink cannot straddle a horizontal structural cabinet member, then I would think a vertical support post is required to support the weight of the sinks and countertop.

If the sink can straddle a structural cabinet member then an approach to avoid a vertical support post would be to build a corner cabinet where the top and bottom face frame rails run continuously from one side to the other of the cabinet that forms one leg of the L. The face frame rails on the other leg of the L would meet the long face frame rails. The rough sketch shows only cabinet plywood sides and the face frame. It does not include the bottom of the cabinet nor any toe kick details. It is only intended to illustrate the face frame rail construction. The length of the long upper rail would dictate the width of the top rail. It may have to be extra wide to support the weight of the filled sinks and a heavy stone countertop, especially since the countertop features an inside corner at the sink.

I am not sure what you have in mind for sliding doors. But I would be concerned that sliding doors in the wet, high humidity area of the kitchen sink would soon stop working smoothly. A single door fashioned in a right angle would probably work. Also a one door could be hinged to the other door and then hinged to the cabinet frame. I personally would avoid these designs because I do not believe these to be very elegant. If possible, hinging each door to the respective cabinet frame so they can open independently would be the design I would try to implement. However, I am not sure how much gap would be required where the two doors meet when closed. Also, door knobs could interfere with this design, especially if mounted in the upper corners of the doors where the doors meet.

I got a little lost regarding the plumbing installation and the drawers, so I can offer no comment regarding this aspect of the design.

View bruc101's profile


1075 posts in 2962 days

#2 posted 07-02-2016 03:36 AM

I’ve had to do this more than one time especially with solid surface countertops. We call this a “woman thing” and don’t question one when she says this is what I want. We give it to her and say wow that looks awesome, then we leave.

We build the corner cabinet just like we would a 90 degree corner cabinet for a lazy susan where the doors open left and right with no face frame in the middle. Not a difficult cabinet to build.

-- Bruce Free Plans

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