Galaxy Nickel Diagonal Sink Front Cabinets

What arrives is an angled frame carrying one full-overlay door — ¾″ solid wood stiles and rails, 2½″ wide, around a ⅜″ recessed MDF centre panel — on Blum Compact Clip hinges with Blumotion soft-close, in the same paint as every other door in the kitchen. It is flat, it is light, and it is finished on the faces the room will see.

What is not in the carton, in the order people discover it:

• Side panels. The flanking cabinets’ sides become the sides of the cavity.
• A back. The wall, or a site-built nailer, does that job.
• A floor. GN DSFL36 at $100.75 is a separate line on this same page, and most jobs need it.
• A toe kick. GN TK8 at $55.90, mitred across the angle.
• Blocking, cleats or a frame to fasten any of it to. That is site lumber.
• Fillers. GN BF3 at $26.00 or GN BF6 at $43.55, and a corner usually wants two.

Front and floor together are $250.25 against $617.50 for the finished corner box — a $367.25 gap before a single stick of blocking or an hour of labour. That gap is narrower than it looks and it closes fast, which is why price is the worst reason to choose this part and the reason we ask what the corner looks like before taking the order.

Three people, and they all have the same thing in common: a corner that a factory box cannot go into.

The first is a cabinet shop or a finish carpenter fitting an existing corner — runs already set, a gap left between them that is not the size a catalog corner comes in, and a customer who wants the front to match the doors either side. The second is a builder working around something immovable in that corner — a waste stack, a post, a duct chase, supply lines nobody is relocating — which a rigid factory carcass simply cannot be slid past. The third is somebody whose bowl is simply too big for a 36″ corner unit, and who is building a cavity as large as the two runs will allow.

What all three have that a homeowner usually does not is somebody on site who builds cabinet cavities. A front ordered without that person is a door leaning against a wall waiting for a carpenter who was never in the budget. If that describes the job, order the corner box at $617.50 and spend the difference on nothing at all. Our notes for contractors cover where the part earns its place on a real schedule.

The front has no structure of its own, so the structure has to be there before it arrives. Done in this order it is a straightforward afternoon; done out of order it is a countertop delay.

1. Set both flanking cabinets first and level them to one another. Every dimension of the cavity is taken off the faces of those two boxes, not off the walls, so they are the datum for the whole corner.
2. Build the cavity: a floor frame at toe-kick height, cleats fastened into the flanking cabinets’ end panels at both sides, and a nailer across the back. The floor — GN DSFL36, or a site deck if the installer is making one — lands on that frame.
3. Dry-fit the front against the two cabinet faces and mark the scribe. The outer stiles are what get scribed, and they are scribed to the adjacent cabinet stiles rather than to the wall, because the room sees the joint between two face frames and not the one behind it.
4. Take the scribe off with a block plane or a belt sander and keep the cut on the back of the stile so the finished face stays intact. This is the step that separates a front that reads as factory from one that reads as a repair.
5. Fasten through the stiles into the cleats, plumb and square, and check one number above all others: the top of the frame must sit at exactly the same height as the tops of the cabinets either side. The slab bridges all three.
6. Only then call the fabricator to template. A corner slab is the largest piece of stone in the kitchen and the angle is never precisely what the plan said it would be.

Two practical notes. The hinges are Blum Quick-Release, so take the door off before any of this and hang it at the end — it keeps the paint off the sander and makes the frame easier to hold. And leave the inside faces of the cavity alone: they sit behind a closed door and the flanking cabinets’ veneered interiors already finish them. The scribe and filler guide has the joints drawn.

GN DSFL36 at $100.75 is the matching floor for the cavity. It gives the corner a finished bottom to stand a bin, a filter tank or a bucket of cleaning bottles on, a stopping edge where the toe kick dies into the angle, and a surface that can be wiped rather than a deck of bare site ply soaking up the first drip from the trap. That last point is not cosmetic on a sink cabinet. The floor beneath a corner trap is the single surface our article on how long cabinets last singles out as the first thing to go, and bare site ply gives up long before a finished panel does.

Leave it off only where the installer means to deck the cavity himself out of matching stock. And because the listing is a single line rather than a described assembly, have us confirm what the carton actually holds before it leaves the warehouse; it is a thirty-second question that has saved more than one install day.

This is the part that goes wrong, and it goes wrong the same way every time: the front gets ordered with the kitchen, and the toe kick, the fillers and the panel at the end of the run get ordered a fortnight later when somebody notices. Lead time in this line runs seven days to three weeks, so a $26.00 filler ordered late stops a countertop template as effectively as a missing cabinet would, and the corner sits open while the rest of the kitchen is finished around it.

Everything in that table is a catalog part in the same paint, which is the entire argument for ordering it rather than making it. A painted finish from the factory is consistent between orders, so a part bought later still matches — but a site-painted stand-in does not, and the corner in front of the sink is the spot in the kitchen where an almost-right gray is most visible. Keep site-made material to what the closed door hides: cleats, blocking, the floor frame, the nailer. Everything the room can see comes off this page or the decorative accessories page, on the same order as the runs. The SKU guide pulls DSF, DSFL and DSB apart, which is worth two minutes given how close the codes look and how far apart the parts are.

Start with the number, because it misleads almost everybody. Measure every piece in the carton and 36 inches will not turn up anywhere. It is a footprint figure: thirty-six inches of run surrendered on each of the two walls, the identical floor area the complete corner cabinet stands in, with the frame cut to the triangle those two surrenders leave behind. Which means the part is useless anywhere the walls do not meet at 45 degrees. Put it on a straight wall and there is nothing for it to do.

Four listings in this collection close a hole under a sink. Which one belongs on your order comes down to a question most people have not thought to ask by the time they reach a product page: what shape is the wall, and is there somebody on site who builds boxes?

Note what the bottom two rows do not offer: there is no apron-front version of the corner. A farmhouse bowl and a diagonal cavity are not a pairing this line sells in any colour, and finding that out after the sink has been bought is a bad afternoon. Everything else the kitchen needs sits in the collection. If the corner is genuinely undecided, hand it over — a free 3D drawing happens before anything ships, and that is the only moment at which picking the wrong one of these four costs nothing.