Thirty-three inches at the sink, and what goes in the cupboard under it
Reviewed September 2026 · Captivating Cabinets
Thirty-three is a sink width before it is anything else. Four of the ten part numbers made here are built around a bowl, they span $468.00 to $815.75, and the differences between them are not obvious from a price column. What is genuinely never costed anywhere is the second half of the job: the inside of a sink cabinet, which is the most-opened and worst-organised cupboard in most kitchens.
Four boxes for a bowl, and what separates them
Two of these are the same price as each other, and two more are the same price as each other again — which tells you the choice is about the face, not about the carcass.
| Part number | Displayed price | What you are choosing |
|---|---|---|
| GN SB33 | $468.00 | A plain sink base: doors, no shelf, room for the trap |
| GN SB33SDF | $468.00 | The same box with a single drawer front across the top |
| GN B33 | $633.75 | A full base with working drawers above the doors |
| GN B33SDF | $633.75 | The same, presented as one continuous drawer front |
| GN FS33 | $815.75 | An apron sink cabinet — confirm the apron cut-out first |
SDF means a single drawer front: one unbroken piece of wood across the top of the cabinet instead of two, at no extra cost. It is a purely visual decision and it only appears on the wide boxes, because a 33-inch span is where two separate fronts start to look like a join rather than a design. On a mid-tone gray it is the more restful of the two — a wide flat front reads as one plane — and on any finish it is the one to choose if a run of wide cabinets is going to line up along a sink wall.
Costing the inside of a sink cupboard
The cabinet under a sink is awkward by definition: a trap in the middle, a disposal on one side, a shut-off valve at the back, and whatever fits around them. Three parts are listed for it, and together they cost about as much again as half the box.
| Part number | Displayed price | What it does |
|---|---|---|
| GN SB33 | $468.00 | The cabinet |
| GNK TILTOUT 11" | $162.50 | A tilt-out tray behind the false front — sponges, brushes |
| GNK UNDER SINK MAT | $156.00 | A moulded tray for the cabinet floor, for the leak nobody plans |
| GNK ROD-B33 BLUM E | $230.75 | A roll-out drawer that clears the plumbing |
| Fitted total | $1,017.25 | Before the sink, the tap and the plumber |
The tilt-out trays are listed at 11, 14 and 24 inches and all three are $162.50, so the size is a fit question rather than a money one — take the one that matches the false front on your box and confirm it against the cabinet. The mat is the part people skip, and it is the part that decides whether a slow leak is a phone call or a new cabinet. On a gray door a water stain that has wicked into the base rail is not subtle.
The rest of the width, briefly
Away from the sink, 33 inches is the first corner width. GN ERB33 at $838.50 is an easy-reach corner with fixed shelves; GN LSB33 at $1,030.25 is the rotating version. Both occupy 33 inches on each wall of the corner, so the corner gets laid out before either run does — not after. There is no blind corner at this width; the blind family starts at 36.
The conventional boxes are GN B33FD-12D at $455.00 and GN B33FD at $468.00, both full-height double door, and GN DB33 at $955.50, a three-drawer bank and the second widest made. The gap between GN B33 and GN B33FD is $165.75, the largest drawer-versus-no-drawer spread anywhere below 36 inches — a reminder that on the wide boxes you are paying for two working drawers, not one.
Common questions
- What does SDF mean on a cabinet part number?
- Single drawer front: one continuous front across the top of the cabinet instead of two separate ones. It costs nothing extra — GN SB33 and GN SB33SDF are both $468.00 — and it is purely a matter of how the run looks.
- What should go under a kitchen sink?
- A tray on the cabinet floor for leaks, $156.00; a tilt-out tray at the false front for sponges and brushes, $162.50; and a roll-out that clears the plumbing, $230.75 at this width. The three together roughly add half the cabinet’s price again.
- How much is a 33-inch sink base cabinet?
- $468.00 for GN SB33 or GN SB33SDF. The full base with working drawers, GN B33, is $633.75, and the apron sink cabinet GN FS33 is $815.75.
- Is there a 33-inch blind corner cabinet?
- No. The blind corner family starts at 36 inches. At 33 the corner options are the easy-reach at $838.50 and the lazy Susan at $1,030.25, both of which take 33 inches on each wall.
- Does a 33-inch sink fit a 33-inch cabinet?
- It leaves no tolerance at all once clips, faucet holes and an out-of-square wall are accounted for. Work from the sink’s published minimum cabinet width, and where the two numbers are equal, step up to 36.
Keep reading
The guides behind the numbers on this page.
- Sink base cabinets
Every sink box in the collection, from the 21-inch prep box to the widest made.
- Tilt-out tray cabinets
The false-front trays above, in all three lengths.
- Farm sink cabinets
The apron boxes at 30, 33 and 36 inches, and what each one expects of the sink.
- How to clean and care for kitchen cabinets
Particularly the cabinet that spends its life under running water.
- The 36-inch base width
The busiest width on the board, and where a 33-inch sink usually belongs.
- Corner base cabinets
The easy-reach and rotating corners, priced, before you commit a corner to either.
- Gray kitchen cabinets: finding the right shade
Why a continuous drawer front reads differently on a mid-tone gray than on white.